Comb segmentation spectroscopy for rapid detection of molecular absorption lines

• Main Authors: Lee, Jaehyun, Lee, Keunwoo, Yang, Jaewon, Kim, Young-Jin, Kim, Seung-Woo
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Comb Segmentation Spectroscopy; Absorption Lines; Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/83541; http://hdl.handle.net/10220/49782
• Institution: Nanyang Technological University

We perform fast comb spectroscopy by dividing the probe comb into several sub-comb segments so as to produce multi-heterodyne beats focused around targeted molecular absorption lines. This concentrated scheme of comb spectroscopy is able to achieve a 30 dB signal-to-noise ratio with just a single sh...