Abstract

We demonstrate spectral normalization in dual-comb spectroscopy of acetylene using a sealed gas cell and liquid nitrogen trap. The normalized spectra of the P- and R-branches of the ${\nu _1} + {\nu _3}$ vibration band of ${^{12}{{\rm{C}}_2}{{\rm{H}}_2}}$ were observed at a comb repetition rate of 19.8 MHz. We also observed instantaneous pressure changes inside the cell during the cooling of the liquid nitrogen trap, with different averaging times.

© 2021 Optical Society of America

Hyperfine structure and absolute frequency of ¹²⁷I₂ transitions at 514 nm for wavelength standards at 1542 nm

Kohei Ikeda, Takumi Kobayashi, Mayuko Yoshiki, Daisuke Akamatsu, and Feng-Lei Hong
J. Opt. Soc. Am. B 39(8) 2264-2271 (2022)

An unstabilized femtosecond semiconductor laser for dual-comb spectroscopy of acetylene

Jacob Nürnberg, Cesare G. E. Alfieri, Zaijun Chen, Dominik Waldburger, Nathalie Picqué, and Ursula Keller
Opt. Express 27(3) 3190-3199 (2019)

Measurement of acetylene-d absorption lines with a self-referenced fiber laser frequency comb

Jie Jiang, John E. Bernard, Alan A. Madej, Andrzej Czajkowski, Sibyl Drissler, and David J. Jones
J. Opt. Soc. Am. B 24(10) 2727-2735 (2007)

Pressure-induced shift and broadening of 1510–1540-nm acetylene wavelength calibration lines

W. C. Swann and S. L. Gilbert
J. Opt. Soc. Am. B 17(7) 1263-1270 (2000)

Tunable dual-comb spectrometer for mid-infrared trace gas analysis from 3 to 4.7 µm

Leonard Nitzsche, Jens Goldschmidt, Jens Kiessling, Sebastian Wolf, Frank Kühnemann, and Jürgen Wöllenstein
Opt. Express 29(16) 25449-25461 (2021)