分光计
高光谱成像
光学
成像光谱仪
频率梳
材料科学
物理
光谱分辨率
激光器
拉曼光谱
宽带
成像光谱学
太赫兹辐射
拉曼散射
调制(音乐)
和频产生
光电子学
波长
非线性光学
谱线
遥感
地质学
天文
声学
作者
David R. Carlson,Daniel D. Hickstein,Scott A. Diddams
出处
期刊:Optics Express
[The Optical Society]
日期:2020-09-28
卷期号:28 (20): 29148-29148
被引量:6
摘要
We demonstrate a dual-comb spectrometer based on electro-optic modulation of a continuous-wave laser at 10 GHz. The system simultaneously offers fast acquisition speed and ultrabroad spectral coverage, spanning 120 THz across the near infrared. Our spectrometer is highly adaptable, and we demonstrate absorption spectroscopy of atmospheric gases and a dual-comb configuration that captures nonlinear Raman spectra of semiconductor materials via coherent anti-Stokes Raman scattering. The ability to rapidly and simultaneously acquire broadband spectra with high frequency resolution and high sensitivity points to new possibilities for hyperspectral sensing in fields such as remote sensing, biological detection and imaging, and machine vision.
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