Scientists / Open questions

Sajeev John

Photonic crystals; localization of light

16 questions

Engineering self-assembled opal-derived photonic crystals toward large complete photonic band gaps and LDOS-controlled radiative dynamics
Quantitative theory of fluorescence in realistic photonic crystals: band-edge dispersion, Lamb shifts, disorder, and lossy or dispersive hosts
Quantitative feasibility of the photonic-band-edge single-atom qubit: realistic reservoir modeling, decoherence budgets, and many-body radiative corrections
Open problems for a photonic-bandgap all-optical micro-transistor: a unified collective non-Markovian band-edge theory and realistic density-of-states engineering
Realizing and validating beyond-30% conversion efficiency in thin-film photonic-crystal silicon solar cells under realistic contacts, metallization, and band-edge optical data
Non-Markovian quantum theory of pumped and dephasing collective atom-field dynamics near a realistic photonic band edge
Rigorous stability theory for nonlinear Dirac-type gap solitary waves in two- and three-dimensional photonic band-gap structures
Coherent theory of lasing in a multiple-scattering medium: emission coherence and the approach to the photon-localization threshold
Device-level integration and realistic-illumination assessment of conducting photonic-crystal back-reflectors for thin silicon photovoltaics
Anchoring, director-field realization, and quantitative modeling of liquid-crystal-infiltrated macroporous silicon two-dimensional photonic crystals
Dynamical theory, stability, and experimental realization of nonlinear photonic-band-gap solitary waves in two and three dimensions
Realizing and optically verifying a complete three-dimensional photonic band gap in glancing-angle-deposited tetragonal square spiral photonic crystals
Mechanisms, global prevalence, and model representation of sustained supercooled liquid water in deep convective clouds near the homogeneous freezing threshold
Photon mobility edges, band-tail localized states, and critical transport in three-dimensional disordered dielectric superlattices
Realizing a robust, complete, and tunable three-dimensional photonic band gap in self-assembled silicon inverse opals: disorder tolerance, electro-optic control, and local-density-of-states engineering
Renormalization-group fate of the localization nonlinear $\sigma$ model for extreme long-range power-law correlated disorder ( $m\le\epsilon$ in $d=2+\epsilon$ )

Back to open problems

Engineering self-assembled opal-derived photonic crystals toward large complete photonic band gaps and LDOS-controlled radiative dynamics

Quantitative theory of fluorescence in realistic photonic crystals: band-edge dispersion, Lamb shifts, disorder, and lossy or dispersive hosts

Quantitative feasibility of the photonic-band-edge single-atom qubit: realistic reservoir modeling, decoherence budgets, and many-body radiative corrections

Open problems for a photonic-bandgap all-optical micro-transistor: a unified collective non-Markovian band-edge theory and realistic density-of-states engineering

Realizing and validating beyond-30% conversion efficiency in thin-film photonic-crystal silicon solar cells under realistic contacts, metallization, and band-edge optical data

Non-Markovian quantum theory of pumped and dephasing collective atom-field dynamics near a realistic photonic band edge

Rigorous stability theory for nonlinear Dirac-type gap solitary waves in two- and three-dimensional photonic band-gap structures

Coherent theory of lasing in a multiple-scattering medium: emission coherence and the approach to the photon-localization threshold

Device-level integration and realistic-illumination assessment of conducting photonic-crystal back-reflectors for thin silicon photovoltaics

Anchoring, director-field realization, and quantitative modeling of liquid-crystal-infiltrated macroporous silicon two-dimensional photonic crystals

Dynamical theory, stability, and experimental realization of nonlinear photonic-band-gap solitary waves in two and three dimensions

Realizing and optically verifying a complete three-dimensional photonic band gap in glancing-angle-deposited tetragonal square spiral photonic crystals

Mechanisms, global prevalence, and model representation of sustained supercooled liquid water in deep convective clouds near the homogeneous freezing threshold

Photon mobility edges, band-tail localized states, and critical transport in three-dimensional disordered dielectric superlattices

Realizing a robust, complete, and tunable three-dimensional photonic band gap in self-assembled silicon inverse opals: disorder tolerance, electro-optic control, and local-density-of-states engineering

Renormalization-group fate of the localization nonlinear σ\sigmaσ model for extreme long-range power-law correlated disorder (m≤ϵm\le\epsilonm≤ϵ in d=2+ϵd=2+\epsilond=2+ϵ)

Renormalization-group fate of the localization nonlinear $\sigma$ model for extreme long-range power-law correlated disorder ( $m\le\epsilon$ in $d=2+\epsilon$ )