Publication detail

Absolute frequencies of H13C14N hydrogen cyanide transitions in the 1.5-mu m region with the saturated spectroscopy and a sub-kHz scanning laser

HRABINA, J. HOŠEK, M. ŘEŘUCHA, Š. ČÍŽEK, M. PILÁT, Z. LAZAR, J. ČÍP, O.

English title

Absolute frequencies of H13C14N hydrogen cyanide transitions in the 1.5-mu m region with the saturated spectroscopy and a sub-kHz scanning laser

Type

journal article in Web of Science

Language

en

Original abstract

The wide span and high density of lines in its rovibrational spectrum render hydrogen cyanide a useful spectroscopic media for referencing absolute frequencies of lasers in optical communication and dimensional metrology. We determined, for the first time to the best of our knowl-edge, the molecular transitions' center frequencies of the H13C14N isotope in the range from 1526 nm to 1566 nm with 1.3 x 10-10 fractional uncertainty. We investigated the molec-ular transitions with a highly coherent and widely tunable scanning laser that was precisely referenced to a hydrogen maser through an optical frequency comb. We demon-strated an approach to stabilize the operational conditions needed to maintain the constantly low pressure of the hydro-gen cyanide to carry out the saturated spectroscopy with the third-harmonic synchronous demodulation. We demon-strated approximately a forty-fold improvement in the line centers' resolution compared to the previous result.

English abstract

The wide span and high density of lines in its rovibrational spectrum render hydrogen cyanide a useful spectroscopic media for referencing absolute frequencies of lasers in optical communication and dimensional metrology. We determined, for the first time to the best of our knowl-edge, the molecular transitions' center frequencies of the H13C14N isotope in the range from 1526 nm to 1566 nm with 1.3 x 10-10 fractional uncertainty. We investigated the molec-ular transitions with a highly coherent and widely tunable scanning laser that was precisely referenced to a hydrogen maser through an optical frequency comb. We demon-strated an approach to stabilize the operational conditions needed to maintain the constantly low pressure of the hydro-gen cyanide to carry out the saturated spectroscopy with the third-harmonic synchronous demodulation. We demon-strated approximately a forty-fold improvement in the line centers' resolution compared to the previous result.

Keywords in English

laser spectroscopy, linear absorption spectroscopy, saturated absorption spectroscopy, hydrogen cyanide

Released

28.10.2022

Publisher

Optica Publishing Group

Location

WASHINGTON

ISSN

1539-4794

Volume

47

Number

21

Pages from–to

5704–5707

Pages count

4

BIBTEX


@article{BUT184584,
  author="Jan {Hrabina} and Martin {Hošek} and Šimon {Řeřucha} and Martin {Čížek} and Zdeněk {Pilát} and Josef {Lazar} and Ondřej {Číp},
  title="Absolute frequencies of H13C14N hydrogen cyanide transitions in the 1.5-mu m region with the saturated spectroscopy and a sub-kHz scanning laser",
  year="2022",
  volume="47",
  number="21",
  month="October",
  pages="5704--5707",
  publisher="Optica Publishing Group",
  address="WASHINGTON",
  issn="1539-4794"
}