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Abstract Ultra-compact spectrometers are becoming increasingly popular for their promising applications in biomedical analysis，。
we propose a tailored method called Neural Spectral Fields (NSF) that leverages the unique wavelength and bias-dependent responsivity matrix. Our spectrometer achieves a high spectral wavelength accuracy of up to 0.30 nm and a spectral resolution of up to 10 nm. Additionally， we demonstrate the high spectral imaging performance of the device. The compatibility of our demonstration with the standard III-V process greatly accelerates the commercialization of miniaturized spectrometers. 。
and food safety. In this work。
based on the AlGaAs/GaAs p-graded-n junction with a voltage-tunable optical response. To reconstruct the optical spectrum， we report a single-pixel-photodetector spectrometer with a spectral range from 480 nm to 820 nm， environmental monitoring。