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Comb-assisted cavity ring-down spectroscopy of a buffer-gas-cooled molecular beam
- Source :
- PCCP. Physical chemistry chemical physics, 18 (2016): 16715–16720. doi:10.1039/c6cp02163h, info:cnr-pdr/source/autori:Santamaria, Luigi; Di Sarno, Valentina; De Natale, Paolo; De Rosa, Maurizio; Inguscio, Massimo; Mosca, Simona; Ricciardi, Iolanda; Calonico, Davide; Levi, Filippo; Maddaloni, Pasquale/titolo:Comb-assisted cavity ring-down spectroscopy of a buffer-gas-cooled molecular beam/doi:10.1039%2Fc6cp02163h/rivista:PCCP. Physical chemistry chemical physics (Print)/anno:2016/pagina_da:16715/pagina_a:16720/intervallo_pagine:16715–16720/volume:18
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- We demonstrate continuous-wave cavity ring-down spectroscopy of a partially hydrodynamic molecular beam emerging from a buffer-gas-cooling source. Specifically, the ( v1 + v(3)) vibrational overtone band of acetylene (C2H2) around 1.5 mu m is accessed using a narrow-linewidth diode laser stabilized against a GPS-disciplined rubidium clock via an optical frequency comb synthesizer. As an example, the absolute frequency of the R(1) component is measured with a fractional accuracy of 1 X 10(-9). Our approach represents the first step towards the extension of more sophisticated cavity-enhanced interrogation schemes, including saturated absorption cavity ring-down or two-photon excitation, to buffer-gascooled molecular beams.
- Subjects :
- buffer-gas-cooled molecular beams
Buffer gas
General Physics and Astronomy
02 engineering and technology
01 natural sciences
Cavity ring-down spectroscopy
law.invention
Optics
law
acetylene
0103 physical sciences
Physical and Theoretical Chemistry
010306 general physics
Absorption (electromagnetic radiation)
Spectroscopy
business.industry
Chemistry
Overtone band
021001 nanoscience & nanotechnology
Laser
cavity ring-down spectroscopy
Rubidium standard
Optoelectronics
0210 nano-technology
business
Molecular beam
Subjects
Details
- ISSN :
- 14639084 and 14639076
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Physical Chemistry Chemical Physics
- Accession number :
- edsair.doi.dedup.....e1becc5eb9f9c7adeaa38bde5d60ff17