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physics.app-ph2026
Nonreciprocal Thermophotonic Cooling
Daniel Cui, Parthiban Santhanam, Aaswath P. Raman
Solid-state cooling via electroluminescent emission from light-emitting diodes is a promising alternative to thermoelectric and vapor-compression refrigeration, but practical perfo…
physics.optics2026
Quasi-bandgap behavior in non-Hermitian photonic crystals
Jin Xu, Daniel Cui, Aaswath P. Raman
We investigate non-Hermitian photonic crystals in which the lossy and lossless constituents share the same real permittivity and differ only in their imaginary part. We characteriz…
physics.optics2026
Magneto-optic perturbation theory for near-complete violation of Kirchhoff's law of thermal emission at low magnetic fields
Daniel Cui, Aaswath P. Raman
Magneto-optic photonic systems can violate Kirchhoff's law of thermal emission by breaking Lorentz reciprocity. We develop a dispersive perturbation theory yielding an analytical e…