arxiveess.SPphysics.optics2026-07-19
Broadband Content-Adaptive Moiré Meta-spectrometer
Arnab Ghosh, Johannes E. Fröch, Arka Majumdar, Vishwanath Saragadam
Optical spectroscopy underpins material characterization, chemical sensing, and astronomy, but conventional instruments face a rigid trade-off between footprint, spectral range, and resolution. We demonstrate a content-adaptive spectrometer that overcomes this by co-designing dis…