3 papers
physics.optics2025
Visible Imaging of Incoherent 1200-nm Light via Triplet--Triplet Annihilation Upconversion
Pournima Narayanan, Rabeeya Hamid, Linda Pucurimay +13
Upconversion of low-energy photons to higher-energy photons provides an opportunity to surpass traditional limitations in fields such as 3D printing, photovoltaics, and photocataly…
physics.optics2024
All-passive upconversion of incoherent near-infrared light at intensities down to 10 W/cm
Rabeeya Hamid, Demeng Feng, Pournima Narayanan +10
Frequency upconversion, which converts low-energy photons into higher-energy ones, typically requires intense coherent illumination to drive nonlinear processes or the use of exter…
cond-mat.mes-hall2023
Control of threshold voltages in Si/SiGe quantum devices via optical illumination
M. A. Wolfe, Brighton X. Coe, Justin S. Edwards +9
Optical illumination of quantum-dot qubit devices at cryogenic temperatures, while not well studied, is often used to recover operating conditions after undesired shocking events o…