PUBLICATIONS BY TOPIC

THE EARLY FOUNDATION PAPERS

  1. *Sajeev John and Michael J. Stephen, Phys. Rev. B 28, 6358 (1983) "Wave Propagation and Localization in a Long Range Correlated Random Potential".  ABSTRACT  PDF
  2. Sajeev John, Phys. Rev. Lett.  53, 2169 (1984) "Electromagnetic Absorption in a Disordered Medium near a Photon Mobility Edge".    ABSTRACT  PDF
  3. S. John, Phys. Rev. Lett. 58, 2486 (1987) "Strong Localization of Photons in Certain Disordered Dielectric Superlattices".   ABSTRACT   PDF

    4.    

CLASSICAL WAVE LOCALIZATION

  1. Sajeev John, H. Sompolinsky and Michael J. Stephen, Phys. Rev. B 27, 5592 (1983) "Localization in a Disordered Elastic Medium Near Two dimensions".  ABSTRACT  PDF
  2. S. John and M. Stephen, Phys. Rev. B28, 6358 (1983) "Wave Propagation and Localization in a Long Range Correlated Random Potential".  ABSTRACT  PDF
  3. Sajeev John, Phys. Rev. Lett.  53, 2169 (1984) "Electromagnetic Absorption in a Disordered Medium near a Photon Mobility Edge".    ABSTRACT  PDF
  4. Sajeev John, Phys. Rev. B 31, 304 (1985) "Localization and Absorption of Waves in a Weakly Dissipative Disordered Medium".   ABSTRACT   PDF
  5. S. John and R. Rangarajan, Phys. Rev. B38, 10101 (1988) "Optimal Structures for Classical Wave Localization: An Alternative to the Ioffe-Regel Criterion".   ABSTRACT   PDF

THE PHOTONIC BAND GAP CONCEPT AND LIGHT TRAPPING

  1. S. John, Phys. Rev. Lett. 58, 2486 (1987) "Strong Localization of Photons in Certain Disordered Dielectric Superlattices".   ABSTRACT   PDF
  2. S. John, Physics Today, May 1991 (cover story) and page 32 "Localization of Light".
    3.  

THE PHOTONIC BAND GAP MICRO-CHIP: MOULDING THE FLOW OF LIGHT

  1. "Diffractionless Flow of Light in All-Optical Micro-chips", A. Chutinan, Sajeev John, and O. Toader, Physical Review Letters 90, 123901 (2003) .   ABSTRACT  PDF
  2. "Diffractionless Flow of Light in 2D-3D Photonic Band Gap Hetero-structures: Theory, Design Rules, and Simulations", Alongkarn Chutinan and Sajeev John, Physical Review E 71, 026605 (2005). ABSTRACT  PDF
  3. "Light Localization for Broadband Integrated Optics in Three Dimensions", A. Chutinan and Sajeev John, Physical Review B 72, 16, 161316 (2005). ABSTRACT PDF
  4. "3+1 Dimensional Integrated Optics with Localized Light in a Photonic Band Gap", A Chutinan and Sajeev John, Optics Express 14 (3): 1266-1279, Feb 6, (2006). ABSTRACT  PDF
  5. "Molding light flow from photonic band gap circuits to microstructured fibers", James Bauer and Sajeev John, Applied Physics Letters 90, 261111(2007).   ABSTRACT  PDF
  6. "Broadband optical coupling between microstructured fibers and photonic band gap circuits: Two-dimensional paradigms", James Bauer and Sajeev John, Physical Review A 77, 013819 (2008)  ABSTRACT PDF
  7. "Compact optical one-way waveguide isolators for photonic-band-gap microchips", Hiroyuki Takeda and Sajeev John, Physical Review A 78, 023804 (2008)   ABSTRACT  PDF
  8. "Waveguide-mode polarization gaps in square spiral photonic crystals," Rong-Juan Liu, Sajeev John and Zhi-Yuan Li, EPL, 111 54001 (2015). ABSTRACT  PDF

OPTICAL BIO-SENSORS FOR ENHANCED DISEASE DIAGNOSTICS

  1. "Optical Biosensing of Multiple Disease Markers in a Photonic-Band-Gap Lab-on-a-Chip: A Conceptual Paradigm," Abdullah Al-Rashid and Sajeev John, Phys. Rev. Applied 3, 034001 (2015). ABSTRACT  PDF
  2. "Biosensor architecture for enhanced disease diagnostics: lab-in-a-photonic-crystal," Shuai Feng, Jian-Hua Jiang, Abdullah Al Rashid and Sajeev John, Optics Express, 24 No. 11, 12166 (2016). ABSTRACT  PDF
  3. "Logical discrimination of multiple disease-markers in an ultra-compact nano-pillar lab-in-a-photonic-crystal," Abdullah Al-Rashid and Sajeev John, J. Appl. Phys. 126, 234701 (2019). ABSTRACT  PDF
  4. "Three-dimensional photonic crystal short-pillar architecture for high-performance optical biosensing," Dragan Vujic and Sajeev John, Journal of the Optical Society of America B, 38, No. 3, 968-978 (2021). ABSTRACT  PDF

TOPOLOGICAL PHOTONIC CRYSTALS

  1. "Topological transitions in continuously deformed photonic crystals," Xuan Zhu, Hai-Xiao Wang, Changqing Xu, Yun Lai, Jian-Hua Jiang and Sajeev John, Phys. Rev. B 97, 085148 (2018). ABSTRACT  PDF
  2. "Topological light-trapping on a dislocation," Fei-Fei Li, Hai-Xiao Wang, Zhan Xiong, Qun Lou, Ping Chen, Rui-Xin Wu, Yin Poo, Jian-Hua Jiang and Sajeev John, Nature Communications 9 2462 (2018). ABSTRACT  PDF
    3.  

ACOUSTIC METAMATERIALS AND PHONONIC CRYSTALS

  1. "Acoustic modes of locally resonant phononic crystals: Comparison with frequency-dependent mass models," Kenny L. S. Yip and Sajeev John, Physical Review B 103, 094304 (2021). ABSTRACT  PDF
  2. "Effective inertia spring tensor model for acoustic materials with coupled local resonances," Kenny L. S. Yip and Sajeev John, Physical Review B 104, 054302 (2021). ABSTRACT  PDF
  3. "Resonance gaps and slow sound in three-dimensional phononic crystals: Rod-in-a-box paradigm," Kenny L. S. Yip and Sajeev John, Phys. Rev. B Letters 107, L060306 (2023). ABSTRACT  PDF
  4. "Dual audible-range band gaps in three-dimensional locally resonant phononic crystals," Kenny L. S. Yip and Sajeev John, Phys. Rev. B 107, 214304 (2023). ABSTRACT  PDF
  5. "Sound trapping and waveguiding in locally resonant viscoelastic phononic crystals," Kenny L. S. Yip and Sajeev John, Scientific Reports 13, 15313 (2023). ABSTRACT  PDF
    6. Localized_sound_in_dual_gaps

QUANTUM OPTICS NEAR A PHOTONIC BAND GAP

  1. S. John and J. Wang, Phys. Rev. Lett. 64, 2418 (1990) "Quantum Electrodynamics Near a Photonic Band Gap: Photon Bound States and Dressed Atoms". ABSTRACT   PDF
  2. Sajeev John and Jian Wang, Phys. Rev. B 43, 12, 772 (1991) "Quantum Optics of Localized Light in a Photonic Bandgap".   ABSTRACT   PDF
  3. S. John and T. Quang, Phys. Rev. A50, 1764 (1994) "Spontaneous Emission near the Edge of a Photonic Band Gap".   ABSTRACT PDF
  4. S. John and T. Quang, Phys. Rev. Lett. 74, 3419 (1995) "Localization of Superradiance near a Photonic Band Gap".  ABSTRACT   PDF
  5. Sajeev John and Tran Quang, Physical Review A 52, 4083 (1995) "Photon Hopping Conduction and Collectively Induced Transparency in a Photonic Bandgap''.    ABSTRACT    PDF
  6. S. John and T. Quang, Phys. Rev. Lett. 76, 1320 (1996) "Quantum Optical Spin-Glass State of Impurity Two-Level Atoms in a Photonic Band Gap".   ABSTRACT    PDF
    7.    POSTSCRIPT
  7. S. John and T. Quang, Phys. Rev. Lett. 76, 2484 (1996) "Resonant Nonlinear Dielectric Response in a Photonic Band Gap Material".  ABSTRACT   PDF  POSTSCRIPT
  8. S. John and T. Quang, Phys. Rev. A 54, 4479 (1996) "Optical Bistability and Phase Transitions in a Doped Photonic Band Gap Material".  ABSTRACT   PDF
  9. Sajeev John and Tran Quang, Physical Review Letters, 78, 1888 (1997) "Collective Switching and Inversion without Fluctuation of Two-Level Atoms in Confined Photonic Systems''.   ABSTRACT PDF  POSTSCRIPT
  10. Tran Quang and Sajeev John, Physical Review A, 56, 4273 (1997) "Resonance Fluorescence near a Photonic Band Edge: Dressed-State Monte Carlo Wave-function Approach".   ABSTRACT PDF   POSTSCRIPT
  11. Nipun Vats and Sajeev John, Physical Review A 58, 4168-4185 (1998)  "Non-Markovian Quantum Fluctuations and Superradiance Near a Photonic Band Edge".   ABSTRACT PDF   POSTSCRIPT
  12. "Microscopic theory of multiple-phonon-mediated dephasing and relaxation of quantum dots near a photonic band gap", Chiranjeeb Roy and Sajeev John, Physical Review A 81, 023817 (2010). ABSTRACT  PDF
  13. "Resonant dipole-dipole interaction in confined and strong-coupling dielectric geometries", Ramy El-Ganainy and Sajeev John, New Journal of Physics, 15, 083033 (2013). ABSTRACT  PDF
    14.  

ALL-OPTICAL SWITCHING IN PHOTONIC CRYSTALS

  1. Sajeev John and Tran Quang, Physical Review Letters, 78, 1888 (1997) "Collective Switching and Inversion without Fluctuation of Two-Level Atoms in Confined Photonic Systems''.   ABSTRACT PDF  POSTSCRIPT
  2. "Pulse re-shaping in photonic crystal waveguides and micro-cavities with Kerr-nonlinearity: Critical Issues for all-optical switching", Dragan Vujic and Sajeev John, Physical Review A 72, 013807 (2005). ABSTRACT  PDF
  3. "Coherent all-optical switching by resonant quantum-dot distributions in photonic band-gap waveguides", Dragan Vujic and Sajeev John, Physical Rreview A 76, 063814 (2007).  ABSTRACT  PDF
  4. "Optical wavelength converters for photonic band gap microcircuits", Dragan Vujic and Sajeev John, Physical Review A 79, 053836 (2009). ABSTRACT  PDF
  5. "Photonic Band Gap Materials: Towards an All-Optical Micro-Transistor", Sajeev John and Marian Florescu, Journal of Optics A: Pure and Applied Optics 3, S103 (2001). ABSTRACT   PDF
  6. "Resonance Fluorescence in Photonic Band Gap Waveguide Architectures: Designing the Vacuum for All-Optical Switching", M. Florescu and Sajeev John, Physical Review A 69, 053810 (2004). ABSTRACT PDF
  7. "Engineering the Electromanetic Vacuum for Controlling Light with Light in a Photonic Band Gap Micro-chip", R. Z. Wang and Sajeev John, Physical Review A 70, 043805 (2004). ABSTRACT PDF

ALL-OPTICAL TRANSISTOR ACTION IN PHOTONIC BAND GAPS

  1. "Ultrafast Population Switching of Quantum Dots in a Structured Vacuum", Xun Ma and Sajeev John, Physical Review Lett. 103, 233601 (2009). ABSTRACT  PDF
  2. "Switching dynamics and ultrafast inversion control of quantum dots for on-chip optical information processing". Xun Ma and Sajeev John, Physical Review A 80, 063810 (2009). ABSTRACT  PDF
  3. "Quantum-dot all-optical logic in a structured vacuum", Xun Ma and Sajeev John, Physical Review A 84, 013830 (2011). ABSTRACT  PDF
  4. "Optical pulse dynamics for quantum-dot logic operations in a photonic-crystal waveguide", Xun Ma and Sajeev John, Physical Review A 84, 053848 (2011). ABSTRACT  PDF
  5. "Self-consistent Maxwell-Bloch theory of quantum-dot-population switching in photonic crystals" Hiroyuki Takeda and Sajeev John, Physical Review A 83, 053811 (2011). ABSTRACT  PDF

OPTICAL GAP SOLITONS

  1. S. John and N. Akozbek, Phys. Rev. Lett. 71, 1168 (1993) "Nonlinear Optical Solitary Waves in a Photonic Band Gap".  ABSTRACT   PDF
  2. Neset Akozbek and Sajeev John, Physical Review E 57, 2287 (1998) "Optical Solitary Waves in Two- and Three-Dimensional Nonlinear Photonic Band-Gap Structures".   ABSTRACT  PDF   POSTSCRIPT
  3. Neset Akozbek and Sajeev John, Physical Review E 58, 3876 (1998) "Self-Induced Transparency Solitary Waves in a Doped Photonic Band Gap Material".   ABSTRACT  PDF   POSTSCRIPT
  4. Sajeev John and Valery Rupasov, Physical Review Letters 79, 821 (1997) "Multi-photon Localization and Propagating Quantum Gap Solitons in a Frequency Gap Medium".   ABSTRACT PDF   POSTSCRIPT
  5. Sajeev John and V. Rupasov, Europhysics Letters 46 (3), 326 (1999)  "Quantum Self-Induced Transparency in Frequency Gap Media".  ABSTRACT PDF

QUANTUM CONTROL IN A PHOTONIC BAND GAP

  1. Tran Quang, M. Woldeyohannes, Sajeev John and G.S. Agarwal, Physical Review Letters 79, 5238 (1997) "Coherent Control of Spontaneous Emission Near a Photonic Band Edge: A Single-Atom Optical Memory Device". ABSTRACT PDF   POSTSCRIPT
  2. Mesfin Woldeyohannes and Sajeev John, Physical Review A60(6), 5046-5068 (1999) "Coherent control of spontaneous emission near a photonic band edge: A qubit for quantum computation". ABSTRACT  PDF POSTSCRIPT
  3. "Single Atom Switching and NonMarkovian Dynamics in a Coloured Vacuum", M. Florescu and Sajeev John, Physical Review A 64, 033801 (2001).   ABSTRACT  PDF POSTSCRIPT

MICROFABRICATION OF PHOTONIC BAND GAP MATERIALS: THEORETICAL ROADMAPS

  1.  Kurt Busch and Sajeev John, Physical Review E 58, 3896 (1998) "Photonic Band Gap Formation in Certain Self-Organizing Systems". ABSTRACT PDF   POSTSCRIPT
  2. "Proposed Square Spiral Microfabrication Architecture for Large Three-Dimensional Photonic Band Crystals", Ovidiu Toader and Sajeev John, Science vol. 292, 1133 (2001).   ABSTRACT   PDF
  3. "Square spiral photonic crystals: Robust architecture for microfabrication of materials with large three-dimensional photonic band gaps", Ovidiu Toader and Sajeev John, Physical Review E 66, 016610 (2002), ABSTRACT  PDF  POSTSCRIPT
  4. "Photonic Band Gap Materials based on Tetragonal Lattices of Slanted Pores", O. Toader, M. Berciu, and Sajeev John, Physical Review Letters 90, 233901 (2003). ABSTRACT   PDF POSTSCRIPT
  5. "Blueprint for wafer-scale three-dimensional photonic band-gap synthesis by photoelectrochemical etching", Timothy Y. M. Chan and Sajeev John, Physical Review E 68, 046607 (2003). ABSTRACT   PDF
  6. "Photonic Band Gap Synthesis by Holographic Lithography", Ovidiu Toader, Tim Chan, and Sajeev John, Physical Review Letters 92, 043905 (2004).
    7. ABSTRACT  PDF POSTSCRIPT
  7. "Slanted Pore Photonic Band Gap Materials", Ovidiu Toader and Sajeev John, Physical Review E 71, 036605 (2005). ABSTRACT  PDF
  8. "Photonic Band Gap Synthesis by Optical Interference Lithography", Tim Chan, Ovidiu Toader, and Sajeev John, Physical Review E 71, 046605 (2005). ABSTRACT  PDF
  9. "Photonic band-gap formation by optical-phase-mask lithography", Timothy Y. M. Chan, Ovidiu Toader, and Sajeev John, Physical Review E 73, 046610 (2006) ABSTRACT PDF
  10. "Diamond photonic band gap synthesis by umbrella holographic lithography", Ovidiu Toader, Timothy Y. M. Chan, and Sajeev John, Appl. Phys. Lett. 89, 101117 (2006); doi:10.1063/1.2347112 (3 pages)   ABSTRACT  PDF
  11. "Circuits for light in holographically defined photonic-band-gap materials", Timothy Y. M. Chan and Sajeev John, Physical Review A 78, 033812 (2008)   ABSTRACT  PDF
    12.  

PHOTONIC BAND GAP MATERIALS FABRICATION AND EXPERIMENTS

  1. "Large-scale synthesis of a silicon photonic crystal with a complete three-dimensional bandgap near 1.5 micrometres", Alvaro Blanco, Emmanuel Chomski, Serguei Grabtchak; Marta Ibisate, Sajeev John, Stephen W. Leonard, Cefe Lopez, Francisco Meseguer, Hernan Miguez, Jessica P. Mondia, Geoffrey A. Ozin, Ovidiu Toader and Henry M. van Driel, Nature 405 (6785), 437-440 (2000). ABSTRACT   PDF
  2. "Photonic Bandgap Engineering in Germanium Inverse Opals by Chemical Vapor Deposition", H. Miguez, E. Chomski, F. Garcia-Santamaria, M. Ibisate, S. John, C. Lopez, F. Meseguer, J. P. Mondia, G. A. Ozin, O. Toader, H. M. van Driel, Advanced Materials 13, No.21, 1634 (2001). ABSTRACT
  3. "Fabrication of Tetragonal Square Spiral Photonic Crystals", Scott Kennedy, Michael Brett, Ovidiu Toader, and Sajeev John, Nano Letters Vol. 2, No. 1, 59, (2002).  
  4. "Optical Properties of a Silicon Square Spiral Photonic Crystal" , S. Kennedy, M. Brett, O. Toader, and Sajeev John, Journal of Photonics and Nanostructures, Vol. 1, Issue 1, 37 (2003) PDF
  5. "Direct Two-Photon Writing and Characterization of Slanted Pore Photonic Crystals", Markus Deubel, Martin Wegener, Artan Kaso and Sajeev John, Applied Physics Letters 85 (11), 1895 (2004).ABSTRACT  PDF
  6. "Sub-nanometer precision tuning of the optical properties of three-dimensional polymer-based photonic crystals", G. von Freymann, V. Kitaev, T. Chan, Sajeev John, G. Ozin, M. Deubel, M. Wegener, Journal of Photonics and Nanostructures 2, 191-198 (2004). ABSTRACT PDF
  7. "Enhanced coupling to slow photon modes of three-dimensional graded colloidal photonic crystals", Georg von Freymann, Sajeev John, Vladimir Kitaev, Geoffrey A. Ozin, Advanced Materials, Vol. 17, Issue 10, 1273-1276 (2005). ABSTRACT
  8. "New route towards three-dimensional photonic band gap materials: Silicon double inversion of Polymeric Templates", N. Tetreault, G. von Freymann, M. Deubel, M. Hermatschweiler, F. Perez-Willard, Sajeev John, M. Wegener, G.A. Ozin, Advanced Materials 18 (4): 457, Feb 17 (2006). ABSTRACT
  9. "Direct Laser Writing of Three-Dimensional Photonic Crystals in High Index of Refraction Chalcogenide Glasses", G. von Freymann, S. Wong, G. A. Ozin, Sajeev John, F. Perez-Willard, M. Deubel, M. Wegener, Advanced Materials Vol. 18, Issue 3, February, 2006, Pages: 265-269. ABSTRACT
  10. "3D-2D-3D photonic crystal heterostructures by direct laser writing", M. Deubel, M. Wegener, S. Linden, G. Von Freymann, and Sajeev John, Optics Letters 31 (6): 805-
  11. "Templating and Replication of Spiral Photonic Crystals for Silicon Photonics", Kock Khuen Seet, Vygantas Mizeikis, Kenta Kannari, Saulius Juodkazis, Hiroaki Misawa, Nicolas Tetreault, and Sajeev John, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 14, No. 4, July/August (2008).  PDF
  12. "Sculpturing of photonic crystals by ion beam lithography: towards complete photonic bandgap at visible wavelengths", Saulius Juodkazis, Lorenzo Rosa, Sven Bauerdick, Lloyd Peto, Ramy El-Ganainy and Sajeev John, Optics Express, 19, No. 7 , 5803 (2011). ABSTRACT  PDF
  13. "Three-dimensional femtosecond laser nanolithography of crystals," Airán Ródenas, Min Gu, Giacomo Corrielli1, Petra Paič1, Sajeev John, Ajoy K. Kar and Roberto Osellame, Nature Photonics, 1-5 (2018) ABSTRACT  PDF
  14. "A low cost and large-scale synthesis of 3D photonic crystal with SP2 lattice symmetry," Mei-Li Hsieh, Shu-Yu Chen, Alex Kaiser, Yang-Jhe Yan, B. Frey, Ishwara Bhat, Rajendra Dahal , Sayak Bhattacharya, Sajeev John, and Shawn-Yu Lin, AIP Advances, 9, 085206 (2019). ABSTRACT  PDF
    15.  

TUNABLE PHOTONIC CRYSTALS

  1. "Liquid Crystal Photonic Band Gap Materials: The Tunable Electromagnetic Vacuum", Kurt Busch and Sajeev John, Physical Review Letters 83 (5), 967-970 (1999).   PDF
  2. "Tunable two-dimensional photonic crystals using liquid-crystal infiltration", S. W. Leonard, J. P. Mondia, H. van Driel, O. Toader, S. John et al., Physical Review B, Phys. Rev. B 61, R2389 (2000). ABSTRACT  PDF  POSTSCRIPT
  3. "Elastic Photonic Crystals: From Colour Fingerprinting to Enhancement of Photoluminescence", A. Arsenault, T. J. Clark, G. Von Freymann, E. Vekris, L. Cademartiri, S. Wong, V. Kitaev, I. Manners, Sajeev John, G. A. Ozin, Nature Materials 5 (3): 179-184 March (2006).   PDF

LASING AND NONLINEAR BLOCH WAVES IN PHOTONIC CRYSTALS

  1. "Semi-classical Theory of Lasing in Photonic Crystals", Lucia Florescu, Kurt Busch, and Sajeev John, J. Optical Society of America B19, 2215 (2002). ABSTRACT PDF
  2. "Theory of a one-atom laser in a photonic band-gap microchip" Lucia Florescu, Sajeev John, Tran Quang and R.Z. Wang, Physical Review A 69, 013816 (2004)  PDF
  3. ''Nonlinear Bloch waves in resonantly doped photonic crystals'', Artan Kaso and Sajeev John, Physical Review E 74, 046611 (2006) ABSTRACT  PDF
  4. "Nonlinear Bloch waves in metallic photonic band-gap filaments", Artan Kaso and Sajeev John, Physical Review A 76, 053838 (2007).   ABSTRACT PDF
  5. "Macroscopic response in active nonlinear photonic crystals", Gandhi Alagappan,Sajeev John, and Er Ping Li, Optics Letters 38, No. 18, 3514 (2013). ABSTRACT  PDF

METALLIC PHOTONIC CRYSTALS

  1. "Photonic band gap enhancement in frequency-dependent dielectrics", Ovidiu Toader and Sajeev John, Physical Review E 70, 046605 (2004). ABSTRACT  PDF
  2. "Nonlinear Bloch waves in metallic photonic band-gap filaments", Artan Kaso and Sajeev John, Physical Review A 76, 053838 (2007).   ABSTRACT  PDF
  3. "Metallic photonic-band-gap filament architectures for optimized incandescent lighting", Sajeev John and Rongzhou Wang, Physical Review A, 78, 043809 (2008) ABSTRACT  PDF
  4. "Probing the intrinsic optical Bloch-mode emission from a 3D photonic crystal," Mei-Li Hsieh1, James A Bur, Qingguo Du, Sajeev John and Shawn-Yu Lin, Nanotechnology 27 415204 (2016). ABSTRACT  PDF
  5. "Super Planckian Thermal Radiation Emitted From a Nano-Filament of Photonic Crystal: A Direct Imaging Study," Mei-Li Hsieh, Shawn-Yu Lin, Sajeev John, James A. Bur, Xuanjie Wang, Shankar Narayanan and Ting-Shan Luk, IEEE Photonics Journal, 11, No.6 (2019). ABSTRACT  PDF
  6. "An In-situ and Direct Confirmation of Super-Planckian Thermal Radiation Emitted From a Metallic Photonic-Crystal at Optical Wavelengths," Shawn-Yu Lin, Mei-Li Hsieh, Sajeev John, B. Frey, James A. Bur, Ting-Shan Luk, Xuanjie Wang and and Shankar Narayanan, Scientific Reports, 10, 5209 (2020). ABSTRACT  PDF
  7. "Observation of nonlinear input-output power characteristic of light emission from an electrically-biased metallic photonic crystal", Mei-Li Hsieh1, Tyler Romero1, J. A. Bur1, Xuanjie Wang, Jhih-Sheng Wu, Shankar Narayan, Sajeev John & Shawn-Yu Lin, npj Nanophotonics, 2:15, (2025).   ABSTRACT PDF
    8.  

NUMERICAL METHODS FOR LINEAR, NONLINEAR AND FREQUENCY DEPENDENT INDICES IN PHOTONIC CRYSTALS

  1. "Photonic band gap enhancement in frequency-dependent dielectrics", Ovidiu Toader and Sajeev John, Physical Review E 70, 046605 (2004). ABSTRACT PDF
  2. ''Nonlinear Bloch waves in resonantly doped photonic crystals'', Artan Kaso and Sajeev John, Physical Review E 74, 046611 (2006) ABSTRACT  PDF
  3. "Localized light orbitals: Basis states for three-dimensional photonic crystal microscale circuits", Hiroyuki Takeda, Alongkarn Chutinan and Sajeev John, Physical Review B 74, 195116 (2006).   ABSTRACT  PDF  POSTSCRIPT

WANNIER FUNCTION METHODS

  1. "Localized light orbitals: Basis states for three-dimensional optical micro-circuits", H. Takeda, A. Chutinan and Sajeev John, Europhysics Letters 76, no. 2, pg. 222-228 (2006)  PDF
  2. "Localized light orbitals: Basis states for three-dimensional photonic crystal microscale circuits", Hiroyuki Takeda, Alongkarn Chutinan and Sajeev John, Physical Review B 74, 195116 (2006).   ABSTRACT  PDF  POSTSCRIPT

MULTIPLE-LIGHT-SCATTERING AND RANDOM LASERS

  1. S. John and M. Stephen, Phys. Rev. B28, 6358 (1983) "Wave Propagation and Localization in a Long Range Correlated Random Potential".  ABSTRACT  PDF
  2. Fred MacKintosh and Sajeev John, Phys. Rev. B 37, 1884 (1988) "Coherent Backscattering of Light in the Presence of Time Reversal Non-invariant and Parity Violating Media".    ABSTRACT    PDF
  3. F. MacKintosh and S. John, Phys. Rev. B40, 2383 (1989) "Diffusing-Wave Spectroscopy and Multiple Scattering of Light in Correlated Random Media". ABSTRACT    PDF
  4. Sajeev John and Gendi Pang, "Theory of Lasing in a Multiple Scattering Medium". Physical Review A 54, 3642 (1996).    ABSTRACT    PDF
  5. Lucia Florescu and Sajeev John, "Photon Statistics and Optical Coherence Properties of Light Emission from a Random Laser", Physical Review Letters 93, 013602 (2004). ABSTRACT  PDF
  6. ''Theory of Photon Statistics and Optical Coherence in a Multiple-Scattering Random Laser Medium'', Lucia Florescu and Sajeev John, Physical Review E 69, 046603 (2004). ABSTRACT  PDF  POSTSCRIPT
  7. ''Lasing in a random amplifying medium: Spatiotemporal characteristics and nonadiabatic atomic dynamics'', Lucia Florescu and Sajeev John Physical Review E 70, 036607 (2004). ABSTRACT  PDF
    8.  

EXPERIMENTAL STUDIES OF LIGHT LOCALIZATION

  1. S. Etemad, R. Thompson, M.J. Andrejco, Sajeev John and F. MacKintosh, Phys. Rev. Lett. 59 1420, (1987). "Weak Localization of Photons: Termination of Coherent Random Walks by Absorption and Confined Geometry" PDF
  2. Sajeev John, Nature, 390, 661 (1997) "Frozen Light".  ABSTRACT
  3. "Exceptional Reduction of the Diffusion Constant in Partially Disordered Photonic Crystals", Costanza Toninelli, Evangellos Vekris, Geoffrey A. Ozin, Sajeev John and Diederik S. Wiersma, Physical Review Letters, 101, 123901 (2008) ABSTRACT  PDF
  4. "Anomalous flow of light near a photonic crystal pseudo-gap", Kyle M. Douglass, Sajeev John, Takashi Suezaki, Geoffrey A. Ozin, and Aristide Dogariu1, Optics Express, 19, No. 25 , 25321 (2011). ABSTRACT  PDF
    5.  

SOLAR LIGHT-TRAPPING IN THIN-FILM PHOTONIC CRYSTALS

  1. "Light trapping and absorption optimization in certain thin-film photonic crystal architectures", Alongkarn Chutinan and Sajeev John, Physical Review A 78, 023825 (2008)   ABSTRACT PDF
  2. "Effective optical response of silicon to sunlight in the finite-difference time-domain method", Alexei Deinega and Sajeev John, Optics Letters, 37, No. 1 112 (2012). ABSTRACT  PDF
  3. "Solar energy trapping with modulated silicon nanowire photonic crystals", Guillaume Demesy and Sajeev John, J. Appl. Phys., 112, 074326 (2012). ABSTRACT  PDF
  4. "Solar power conversion efficiency in modulated silicon nanowire photonic crystals", Alexei Deinega and Sajeev John, J. Appl. Phys. 112, 074327 (2012). ABSTRACT  PDF
  5. "Light-trapping in dye-sensitized solar cells", Stephen Foster and Sajeev John, Energy Environ. Sci., DOI: 10.1039/C3EE40185E (2013). ABSTRACT  PDF
  6. "Solar light trapping in slanted conical-pore photonic crystals: Beyond statistical ray trapping", Sergey Eyderman, Sajeev John, and Alexei Deinega, J. Appl. Phys. 113, 154315 (2013); doi: 10.1063/1.4802442. ABSTRACT  PDF
  7. "Finite difference discretization of semiconductor drift-diffusion equations for nanowire solar cells", Alexei Deinega and Sajeev John, Computer Physics Communications 183, 2128 (2012). ABSTRACT  PDF
  8. "Coupled optical and electrical modeling of solar cell based on conical pore silicon photonic crystals", Alexei Deinega, Sergey Eyderman, and Sajeev John, Journal of Applied Phys. 113, 224501 (2013); doi: 10.1063/1.4809982. ABSTRACT  PDF
  9. "Light trapping and near-unity solar absorption in a three-dimensional photonic-crystal", Ping Kuang, Alexei Deinega, Mei-Li Hsieh, Sajeev John and Shawn-Yu Lin, Optics Letters 38, No. 20, 4200 (2013). ABSTRACT  PDF
  10. "Synergistic plasmonic and photonic crystal lighttrapping: Architectures for optical upconversion in thin-film solar cells", Khai Q. Le and Sajeev John, Optics Express, 22, Issue S1, pp. A1-A12, DOI:10.1364/OE.22.0000A1 (2014). ABSTRACT  PDF
  11. "Near perfect solar absorption in ultra-thin-film GaAs photonic crystals", Sergey Eyderman, Alexei Deinega and Sajeev John, Journal of Materials Chemistry A, DOI: 10.1039/c3ta13655h (2014). ABSTRACT  PDF
  12. "Light trapping design for low band-gap polymer solar cells," Stephen Foster and Sajeev John, Optics Express, Vol. 22, Issue S2, pp. A465-A480 (2014). ABSTRACT  PDF
  13. "Light-trapping optimization in wet-etched silicon photonic crystal solar cells," Sergey Eyderman, Sajeev John, M. Hafez, S. S. Al-Ameer, T. S. Al-Harby, Y. Al-Hadeethi, and D. M. Bouwes, Journal of Applied Physics 118, 023103 (2015). ABSTRACT  PDF
  14. "Light-trapping in perovskite solar cells," Qing Guo Du, Guansheng Shen and Sajeev John, AIP Advances 6, 065002 (2016). ABSTRACT  PDF
  15. "Light-trapping and recycling for extraordinary power conversion in ultra-thin gallium-arsenide solar cells," Sergey Eyderman and Sajeev John, Nature Scientific Reports 6 28303 (2016). ABSTRACT  PDF
  16. "Achieving an Accurate Surface Profile of a Photonic Crystal for Near-Unity Solar Absorption in a Super Thin-Film Architecture," Ping Kuang, Sergey Eyderman, Mei-Li Hsieh, Anthony Post, Sajeev John and Shawn-Yu Lin, ACS, Nano 10 (6) 6116-6124 (2016). ABSTRACT  PDF
  17. "Light-trapping design for thin-film silicon-perovskite tandem solar cells," Stephen Foster and Sajeev John, Journal of Applied Physics 120, 103103 (2016). ABSTRACT  PDF
  18. "Photonic crystals with a continuous, Gaussian-type surface profile for near-perfect light trapping," Ping Kuang, Sayak Bhattacharya, Mei-Li Hsieh, Sajeev John and Shawn-Yu Lin, Journal of Nanophotonics, 12(2), 026011 (2018). ABSTRACT  PDF
  19. "Bessel-Beam Direct Write of the Etch Mask in a Nano-Film of Alumina for High-Efficiency Si Solar Cells", Tomas Katkus, Soon Hock Ng, Haoran Mu, Nguyen Hoai An Le, Dominyka Stonyt, Zahra Khajehsaeidimahabadi, Gediminas Seniutinas, Justas Baltrukonis, Orestas Ulinas, Mindaugas Mikutis, Vytautas Sabonis, Yoshiaki Nishijima, Michael Rienacker, Udo Romer, Jan Krugener, Robby Peibst, Sajeev John and Saulius Juodkazis, Advanced Engineering Materials, 2400711 (2024).   ABSTRACT  PDF
  20. "Augmented pyramidal photonic crystals for thin silicon photovoltaics", Griffin Schwartz and Sajeev John, Optics Express, 33, Issue 7, 16290-16304 (2025).   ABSTRACT PDF
    21.  

ULTRA-HIGH-EFFICIENCY THIN-SILICON SOLAR CELLS

  1. "Designing High-Efficiency Thin Silicon Solar Cells Using Parabolic-Pore Photonic Crystals," Sayak Bhattacharya and Sajeev John, Physical Review Applied 9, 044009 (2018). ABSTRACT  PDF
  2. "Towards 30% Power Conversion Efficiency in Thin-Silicon Photonic-Crystal Solar Cells," Sayak Bhattacharya, Ibrahim Baydoun, Mi Lin and Sajeev John, Physical Review Applied, 11, 014005 (2019) ABSTRACT  PDF
  3. "Beyond 30% Conversion Efficiency in Silicon Solar Cells: A Numerical Demonstration," Sayak Bhattacharya & Sajeev John, Scientific Reports, 9, 12482 (2019). ABSTRACT  PDF
  4. "Photonic crystal light trapping: Beyond 30% conversion efficiency for silicon photovoltaics," Sayak Bhattacharya and Sajeev John, APL Photonics 5, 020902 (2020). ABSTRACT  PDF
  5. "Experimental demonstration of broadband solar absorption beyond the lambertian limit in certain thin silicon photonic crystals," Mei-Li Hsieh, Alex Kaiser, Sayak Bhattacharya, Sajeev John & Shawn-Yu Lin, Scientific Reports, 10, 11857 (2020). ABSTRACT  PDF
  6. "Photonic crystals for highly efficient silicon single junction solar cells," J.Krugener, M. Rienacker, S. Schafer, M. Sanchez, S. Wolter, R. Brendel, S.John, H. J. Osten, R.Peibst, Solar Energy Materials and Solar Cells 233, 111337 (2021). ABSTRACT  PDF
  7. "Beyond Lambertian light trapping for large-area silicon solar cells: fabrication methods," Jovan Maksimovic, Jingwen Hu, Soon Hock Ng, Tomas Katkus, Gediminas Seniutinas, Tatiana Pinedo Rivera, Michael Stuiber, Yoshiaki Nishijima, Sajeev John and Saulius Juodkazis, Opto-Electronic Advances 5, No.X, 210086 (2022). ABSTRACT  PDF
  8. "Light-trapping by wave interference in intermediate-thickness silicon solar cells", Sayak Bhattacharya and Sajeev John, Optics Express 32, No. 17, 29795 (2024).   ABSTRACT PDF
    9.  

LIGHT TRAPPING IN PHOTO-CATALYTIC MATERIALS

  1. "Effectively infinite optical pathlength created using a simple cubic photonic crystal for extreme light trapping," Brian J. Frey, Ping Kuang, Mei-Li Hsieh, Jian-Hua Jiang, Sajeev John and Shawn-Yu Lin, Scientific Reports 7, Article number: 4171 (2017). ABSTRACT  PDF
  2. "Enhanced photocatalysis by light-trapping optimization in inverse opals," Xiwen Zhang and Sajeev John, Journal of Materials Chemistry A, 10, 1039 (2020). ABSTRACT  PDF
  3. "Photonic crystal based photoelectrochemical cell for solar fuels," Xiwen Zhang and Sajeev John, Nano Select, 1-7 (2021). ABSTRACT  PDF
  4. "Photonic crystal light trapping for photocatalysis," Xiwen Zhang and Sajeev John, Optics Express 14, 22376-22402 (2021). ABSTRACT  PDF
  5. "Silicon Carbide Photonic Crystal Photoelectrode", Xiwen Zhang and Sajeev John, Advanced Science, 2415552 (2025).   ABSTRACT  PDF

    6.      

LIGHT TRAPPING IN GRAPHENE

  1. "Broadband light-trapping enhancement of graphene absorptivity," Xiwen Zhang and Sajeev John, Physical Review B, 99, 035417 (2019) ABSTRACT  PDF

ROOM TEMPERATURE BOSE-EINSTEIN CONDENSATION IN SEMICONDUCTORS

  1. "Electromagnetically Induced Exciton Mobility in a Photonic Band Gap", Sajeev John and Shengjun Yang, Physical Review Lett. 99 , 046801 (2007).   ABSTRACT PDF
  2. "Exciton dressing and capture by a photonic band edge". Shengjun Yang and Sajeev John, Physical Review B 75, 235332 (2007).   ABSTRACT PDF
  3. "Coherence and antibunching in a trapped interacting Bose-Einstein condensate" Shengjun Yang and Sajeev John, Physical Review B 84, 024515 (2011). ABSTRACT  PDF
  4. "Photonic Crystal Architecture for Room-Temperature Equilibrium Bose-Einstein Condensation of Exciton Polaritons," Jian-Hua Jiang and Sajeev John, Physical Review X 4, 031025 (2014). ABSTRACT  PDF
  5. "Photonic Architectures for Equilibrium High-Temperature Bose-Einstein Condensation in Dichalcogenide Monolayers," Jian-Hua Jiang & Sajeev John, Nature Magazine Scientific Reports 4, 7432 (2014). ABSTRACT  PDF  Supplementary Information
  6. "Light-trapping for room temperature Bose-Einstein condensation in InGaAs quantum wells," Pranai Vasudev, Jian-Hua Jiang and Sajeev John, Optics Express 24 No.13, 14010 (2016). ABSTRACT  PDF
  7. "Photonic-band-gap architectures for long-lifetime room-temperature polariton condensation in GaAs quantum wells," Jian-Hua Jiang, Pranai Vasudev and Sajeev John, Physical Review A 96, 043827 (2017). ABSTRACT  PDF
    8.  

QUANTUM ENTANGLEMENT

  1. "Fragility of the Schrodinger Cat in thermal environments", Sandip Bera , Kenny L. S. Yip & Sajeev John, Scientific Reports 13: 18691 (2023).   ABSTRACT  PDF

THEORY OF THE URBACH TAIL IN DISORDERED SEMICONDUCTORS

  1. "Theory of the Electron Band Tails and the Urbach Optical Absorption Edge", Sajeev John, C. Soukoulis, Morrel H. Cohen and E.N. Economou, Phys. Rev. Lett. 57, 1777 (1986).   PDF
  2. "Localization and the Density of States for an Electron in a Quantized Elastic Continuum", Sajeev John, Physical Review B 35, 9291 (1987).   PDF
  3. "Density of States for an Electron in a Correlated Gaussian Random Potential: Theory of the Urbach Tail", Sajeev John, M.Y. Chou, M.H. Cohen and C.M. Soukoulis, Phys. Rev. B 37, 6963 (1988).   PDF
  4. "Temperature Dependence of the Urbach Edge: A Theory of Multiple Phonon Absorption and Emission Sidebands", C. Grein and Sajeev John, Phys. Rev. B 39, 1140 (1989).   PDF
  5. "Temperature Dependence of the Fundamental Optical Absorption edge in Crystals and Disordered Semiconductors", C. H. Grein and Sajeev John, Solid State Communications 70, No.1, 87-91 (1989).   PDF
  6. "Effects of acoustic- and optical-phonon sidebands on the fundamental optical-absorption edge in crystals and disordered semiconductors", C. H. Grein and Sajeev John, Phys.Rev. B 41, No.11, 7641 (1990).   PDF

GLASS PHASE OF GRANULAR SUPERCONDUCTORS

  1. "Spin Glass State of a Randomly diluted Granular Superconductor", Sajeev John and T.C. Lubensky, Phys. Rev. Lett. 55, 1014 (1985). ABSTRACT PDF
  2. Sajeev John and T.C. Lubensky, Phys. Rev. B 34, 4815 (1986) "Phase Transitions in a Disordered Superconductor near Percolation".  ABSTRACT   PDF
    3.  

CONCEPT OF SPIN-FLUX IN A MANY-ELECTRON SYSTEM

  1. S. John and A. Golubentsev, Phys. Rev. Lett. 71, 3343 (1993) "Topological Magnetic Solitons in the Two-dimensional Mott-Hubbard Gap".  ABSTRACT   PDF
  2. S. John and A. Golubentsev, Phys. Rev. B51, 381 (1995) "Spin-flux and Magnetic Solitons in an Interacting Two-dimensional Electron Gas: Topology of Two-Valued Wavefunctions".  ABSTRACT   PDF
  3. S. John and A. Muller-Groeling, Phys. Rev. B51, 12989 (1995) "Mean-field Energies of Spin-flux Phases".   ABSTRACT    PDF
  4. Sajeev John,  Mona Berciu and A. Golubentsev, Europhysics Letters 41, (1), 31 (1998) "Midgap States of a Two-Dimensional Antiferromagnetic Mott Insulator: Electronic Structure of Meron-Vortices".   ABSTRACT PDF
    5.  

NON-FERMI-LIQUID BEHAVIOUR AND HIGH TEMPERATURE SUPERCONDUCTIVITY

  1. Mona Berciu and Sajeev John, Physical Review B57, 9521 (1998) "Charged Bosons in a Doped Mott Insulator: Electronic Properties of Domain Wall Solitons and Meron-Vortices".   ABSTRACT   PDF   POSTSCRIPT
  2. Mona Berciu and Sajeev John, Physical Review B 61 (15), 10015-10028 (2000) "Quantum dynamics of charged and neutral magnetic solitons: Spin-charge separation in the one-dimensional Hubbard model". ABSTRACT   PDF
    3.   POSTSCRIPT
  3. Mona Berciu and Sajeev John, Physical Review B 59, 15143 (1999) "Numerical study of multisoliton configurations in a doped antiferromagnetic Mott insulator".    ABSTRACT  PDF   POSTSCRIPT
  4. Mona Berciu and Sajeev John, Physical Review B 61 (24), 16454-16469 (2000) "A microscopic model for d-wave charge carrier pairing and non-Fermi-liquid behavior in a purely repulsive 2D electron system". ABSTRACT   PDF
    5.   POSTSCRIPT
  5. "A microscopic model for D-wave pairing in the cuprates: what happens when electrons somersault?", Mona Berciu and Sajeev John, Physica B 296, 143-155 (2001). ABSTRACT   PDF
  6. "Magnetic structure factor in cuprate superconductors: Evidence for charged meron vortices", Mona Berciu and Sajeev John, Physical Review B 69, 224515 (2004). ABSTRACT PDF
    7.  

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