Measurement of the Hydrogen Cyanide Absorption Lines' Centers with the Potential for Mise en Pratique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00552425" target="_blank" >RIV/68081731:_____/21:00552425 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/9604261" target="_blank" >https://ieeexplore.ieee.org/document/9604261</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EFTF/IFCS52194.2021.9604261" target="_blank" >10.1109/EFTF/IFCS52194.2021.9604261</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the Hydrogen Cyanide Absorption Lines' Centers with the Potential for Mise en Pratique

Popis výsledku v původním jazyce

We built a linear absorption spectroscopy setup to measure hydrogen cyanide (H13C14N) 2?3 rotational-vibrational band. The laser's frequency was locked to the minimum of the absorption line by using the 1f technique. We used a commercially available lock-in amplifier combined with a custom-made PID controller allowing for the short-term frequency stability of about 10-10. The laser frequency was determined by measuring the beat-note between the laser and the optical frequency comb. The laser was locked to each absorption line for about 8 hours and the final time record allowed us to determine the absorption line central frequency with the uncertainty of about 40 kHz. This shows significant improvement compared to the data already available for HCN. Our work can potentially lead to the acceptance of HCN for Mise en Pratique (MeP), which means that laser locked to one of the HCN lines can become the official source of the one-meter unit.

Název v anglickém jazyce

Measurement of the Hydrogen Cyanide Absorption Lines' Centers with the Potential for Mise en Pratique

Popis výsledku anglicky

We built a linear absorption spectroscopy setup to measure hydrogen cyanide (H13C14N) 2?3 rotational-vibrational band. The laser's frequency was locked to the minimum of the absorption line by using the 1f technique. We used a commercially available lock-in amplifier combined with a custom-made PID controller allowing for the short-term frequency stability of about 10-10. The laser frequency was determined by measuring the beat-note between the laser and the optical frequency comb. The laser was locked to each absorption line for about 8 hours and the final time record allowed us to determine the absorption line central frequency with the uncertainty of about 40 kHz. This shows significant improvement compared to the data already available for HCN. Our work can potentially lead to the acceptance of HCN for Mise en Pratique (MeP), which means that laser locked to one of the HCN lines can become the official source of the one-meter unit.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS). Proceedings

ISBN

978-1-6654-3935-0

ISSN

—

e-ISSN

—

Počet stran výsledku

3

Strana od-do

(2021)

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

online

Datum konání akce

7. 7. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000784693000032