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physics.optics2026

Nanophotonic control of spatial information in scintillation detectors

Joshua Chen, Simo Pajovic, Seou Choi +9

X-rays enable non-invasive imaging across medicine, security, materials science, and beyond, yet modern systems remain constrained by the need to resolve finer structures at lower…

physics.optics2026

Three-dimensional confinement of light in photonic crystals without bandgaps

Manxi Shi, Sachin Vaidya, Ali Ghorashi +2

We demonstrate that confinement of light in three dimensions is possible in photonic crystals without a complete photonic bandgap. Our approach exploits symmetry-protected quadrati…

physics.optics2026

Supercollimating photonic crystal scintillators

Seou Choi, Sachin Vaidya, Charles Roques-Carmes +1

Scintillators convert X-ray energy into visible or near-visible photons, enabling applications in high-energy particle detection and X-ray imaging. Increasing scintillator thicknes…

physics.optics2025

Tunable Nanophotonic Devices and Cavities based on a Two-Dimensional Magnet

Ahmet Kemal Demir, Luca Nessi, Sachin Vaidya +3

Central to the field of nanophotonics is the ability to engineer the flow of light through nanoscale structures. These structures often have permanent working spectral ranges and o…

physics.optics2024

Large-scale self-assembled nanophotonic scintillators for X-ray imaging

Louis Martin-Monier, Simo Pajovic, Muluneh G. Abebe +9

Scintillators are essential for converting X-ray energy into visible light in imaging technologies. Their widespread application in imaging technologies has been enabled by scalabl…

physics.optics2024

Non-reciprocal frequency conversion in a multimode nonlinear system

Sahil Pontula, Sachin Vaidya, Charles Roques-Carmes +3

Nonlinear optics has become the workhorse for countless applications in classical and quantum optics, from optical bistability to single photon pair generation. However, the intrin…