High-precision measurement of the center frequencies of the hydrogen cyanide (HCN) hyperfine transitions in the 1.5 μm wavelength band

0568219 - ÚPT 2023 PL eng A - Abstract
Hošek, Martin - Řeřucha, Šimon - Hrabina, Jan - Čížek, Martin - Pravdová, Lenka - Číp, Ondřej
High-precision measurement of the center frequencies of the hydrogen cyanide (HCN) hyperfine transitions in the 1.5 μm wavelength band.
Book of Abstracts. 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, September 5-9, 2022, Wojanów, Poland. Wrocław: Wroclaw University of Science and Technology, 2022 - (Sztylińska, K.). s. 141
[Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics /22./. 05.09.2022-09.09.2022, Wojanow]
R&D Projects: GA ČR(CZ) GA19-14988S; GA MŠMT(CZ) EF16_026/0008460
EU Projects: European Commission(XE) 17IND03 - LaVa
Institutional support: RVO:68081731
Keywords : hydrogen cyanide * laser spectroscopy * metrology * frequency reference
OECD category: Optics (including laser optics and quantum optics)
https://psc2022.pwr.edu.pl/docs/pscoc2022_book_of_abstracts.pdf

In the field of dimensional metrology, laser spectroscopy is an essential tool for the realization of the SI-meter. While the well-proven He-Ne lasers lasing at 633 nm stabilized by vapors of molecular iodine remain the cornerstone in this area, the optical frequency standards covering an infrared range of wavelengths rely on the other spectroscopic references. A particular band of metrological interest is the C-band around 1550 nm, widespread in telecommunication, which offers a large selection of cost-effective, readily available components with features hardly achievable with the shorter wavelengths. The dominant spectroscopic media at 1550 nm has been the acetylene isotopes (12C2H2 and 13C2H2 isotopes) that cover a limited range of wavelengths. Our research aims to investigate the hydrogen cyanide (H13CN) as an alternative with a broader absorption spectrum, which would simplify introducing the traceability for a wider range of wavelengths. The primary objective is the precise assessment of the center frequencies of the transitions. The outcomes should lead to the introduction of hydrogen cyanide into Mise en Pratique, making it an internationally recognized source of precise frequency for the realization of traceable laser etalons.
Permanent Link: https://hdl.handle.net/11104/0341038