Fast molecular fingerprinting with a coherent, rapidly tunable dual-comb spectrometer near 3 μm

2019 ◽  
Vol 21 (33) ◽  
pp. 18400-18405 ◽  
Author(s):  
Pei-Ling Luo ◽  
Er-Chien Horng ◽  
Yu-Chan Guan

We report the multi-species determination and fast molecular fingerprinting under microseconds by employing a rapidly tunable dual-comb spectrometer based on electro-optic frequency combs near 3 μm.

Author(s):  
Benjamin J. Reschovsky ◽  
David. A. Long ◽  
Yiliang Bao ◽  
Feng Zhou ◽  
Richard A. Allen ◽  
...  

Author(s):  
Benjamin J. Reschovsky ◽  
David A. Long ◽  
Yiliang Bao ◽  
Feng Zhou ◽  
Jason J. Gorman ◽  
...  

2020 ◽  
Author(s):  
Bingxin Xu ◽  
Xinyu Fan ◽  
Shuai Wang ◽  
Zuyuan He

Abstract Optical frequency comb with evenly spaced lines over a broad bandwidth has revolutionized the fields of optical metrology and spectroscopy. Here, we propose an electro-optic dual-comb spectroscopy to real-time interleave the spectrum with high resolution, in which two electro-optic frequency combs are seed by swept light source. An interleaved spectrum with a high resolution is real-time recorded by the sweeping probe comb without gap time, which is multi-heterodyne detected by the sweeping local comb. The proposed scheme measures a spectrum spanning 304 GHz in 1.6 ms with a resolution of 1 MHz, and reaches a spectral sampling rate of 1.9*108 points/s under Nyquist-limitation. A reflectance spectrum is measured with a calculated figure-of-merit of 4.2*108, which shows great prospect for fast and high-resolution applications.


2016 ◽  
Vol 6 (4) ◽  
Author(s):  
Nicolas Bourbeau Hébert ◽  
Vincent Michaud-Belleau ◽  
Christopher Perrella ◽  
Gar-Wing Truong ◽  
James D. Anstie ◽  
...  

Author(s):  
David A. Long ◽  
Benjamin J. Reschovsky ◽  
Feng Zhou ◽  
Yiliang Bao ◽  
R. Madugani ◽  
...  

2020 ◽  
Vol 12 (1) ◽  
pp. 223 ◽  
Author(s):  
Alexandre Parriaux ◽  
Kamal Hammani ◽  
Guy Millot

Author(s):  
David A Long ◽  
Benjamin J. Reschovsky ◽  
Feng Zhou ◽  
Yiliang Bao ◽  
Ramgopal Madugani ◽  
...  

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