3 papers
physics.optics2026
A Disordered Photonic Medium Enabling Ultrabroadband Light Scattering and Selective Longwave Infrared Emission
Zhenpeng Li, Mathis Degeorges, Nithin Jo Varghese +1
A surface that selectively emits heat in the long-wave infrared (LWIR) can enable passive cooling in hot environments while retaining partial radiative insulation in cold condition…
physics.app-ph2026
How do sub-bandgap reflectors affect the performance of PV modules?
Klaus Jäger, Jyotirmoy Mandal, Barry P. Rand +2
Sub-bandgap reflectors (SBR) can reduce the temperature of photovoltaic (PV) modules by reflecting the near-infrared region of the solar spectrum with photon energies smaller than…
physics.app-ph2025
When Energy-Efficiency May Not Yield Positive Climate Impact -- The Case of Adaptive Radiative Coolers
Nithin Jo Varghese, Jyothis Anand, Jyotirmoy Mandal
The climate impact of building envelopes is often quantified using their energy savings and CO2 emission reduction benefits. However, building envelopes also trap solar and thermal…