Preprint
Oct 2026
Calibration-Free Broadband Reconstructive Spectrometer based on Conical Phase Modulation
Reconstructive spectrometers (RSs) shift spectral analysis from hardware-heavy dispersion to encoding-decoding schemes. In the speckle-based RSs, spectra are encoded into disordered intensity patterns and then recovered algorithmically. However, characterizing such spectral-encoding transmission matrices (TMs) typicall...
Jun-Rui Liang, Zhong-Ming Huang, Yan-Ting Guo et al.
· 0 citations