Chip-integrated Spectroscopy Capable of Temperature Retrieval
Abstract
We demonstrate a chip-integrated emission spectroscope capable of retrieving the temperature of the light sources. It consists of a single photon detector with low dark counts and a sweeping on-chip filter with 2 pm spectral resolution in the visible and near-infrared regimes. With wildfire sensing applications in mind, we test our system with a hollow cathode lamp to simulate the K-line emission, and show how the models of Doppler and collision broadening in the plasma can be used for temperature retrieval. With favorable device parameters, high spectral resolution, and a novel temperature retrieval capability, our technique may find broad applications in environmental monitoring, astrophysics, plasma physics, and so on.
Cite
@article{arxiv.2410.23966,
title = {Chip-integrated Spectroscopy Capable of Temperature Retrieval},
author = {Yifan Du and Yong Meng Sua and Santosh Kumar and Jiuyi Zhang and Xiangzhi Li and Yongxiang Hu and Parminder Ghuman and Yuping Huang},
journal= {arXiv preprint arXiv:2410.23966},
year = {2024}
}
Comments
12 pages, 13 figures