Comb coherence-transfer and cavity ring-down saturation spectroscopy around 1.65 mu m: kHz-accurate frequencies of transitions in the 2 nu(3) band of (CH4)-C-12
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00554337" target="_blank" >RIV/61388955:_____/22:00554337 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0328971" target="_blank" >http://hdl.handle.net/11104/0328971</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d1cp04989e" target="_blank" >10.1039/d1cp04989e</a>
Alternative languages
Result language
angličtina
Original language name
Comb coherence-transfer and cavity ring-down saturation spectroscopy around 1.65 mu m: kHz-accurate frequencies of transitions in the 2 nu(3) band of (CH4)-C-12
Original language description
Comb Coherence Transfer (CCT) uses a feed-forward frequency correction to transfer the optical phase of a frequency comb to the beam of a free-running diode laser. This allows the amplification of a selected comb tooth by 50 dB while adding agile and accurate frequency tuning. In the present work, SI-traceable frequency calibration and comb tooth narrowing down to 20 kHz is additionally provided by comb frequency locking to an ultrastable optical frequency reference distributed from Paris to Grenoble through the RENATER optical fiber network [Lisdat et al., Nat. Commun., 2016, 7, 12443]. We apply this CCT broadly tunable source for saturated cavity ring-down spectroscopy of ro-vibrational R0 to R10 multiplets in the 2 nu(3) band of (CH4)-C-12 (from 6015 to 6115 cm(-1)). Indeed, efficient cavity injection with large intra-cavity power build-up induces saturation of the ro-vibrational transitions at low pressure and Doppler-free Lamb dips are observed with high signal/noise. kHz-accurate transition frequencies are derived improving by three orders of magnitude previous values from spectra in the Doppler regime, which are strongly affected by line blending. While previous saturation spectroscopy investigations addressed specific 2 nu(3) multiplets (R6 or R9), the CCT approach allowed for a rapid coverage of the entire R0-R10 series. Measured transition frequencies are compared with experimental and theoretical line lists available in the literature.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Chemistry Chemical Physics
ISSN
1463-9076
e-ISSN
1463-9084
Volume of the periodical
24
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
4157-4173
UT code for WoS article
000749669000001
EID of the result in the Scopus database
2-s2.0-85124799767