| Autor: |
Pasquale Maddaloni, Valentina Di Sarno, Paolo De Natale, Maurizio De Rosa, Simona Mosca, Iolanda Ricciardi, Luigi Santamaria, Davide Calonico, Filippo Levi, Massimo Inguscio, Filippo Tamassia, Gianfranco Di Lonardo |
| Přispěvatelé: |
Pasquale, Maddaloni, Valentina Di Sarno, Paolo De Natale, Maurizio De Rosa, Simona, Mosca, Iolanda, Ricciardi, Luigi, Santamaria, Davide, Calonico, Filippo, Levi, Massimo, Inguscio, Filippo, Tamassia, Gianfranco Di Lonardo |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
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| Popis: |
We demonstrate continuous-wave cavity ring-down spectroscopy of a partially hydrodynamic molecular beam emerging from a buffer-gas-cooling source. Specifically, the (nu1+nu3) vibrational overtone band of acetylene (12C2H2) around 1.5 micron 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 witha fractional accuracy of 1x10-9. Our approach represents the first step towards the extension of more sophisticated cavity-enhanced interrogation schemes, like two-photon excitation, to buffer-gas-cooled molecular beams. In this respect, a frequency-comb-referenced absolute calibration of the 13C12CH2 spectrum around 6497 cm-1 is also reported, preliminary to the implementation of a Doppler-free two-color interrogation scheme.References: L. santamaria, V. Di sarno, P. De Natale, M. De Rosa, M. Inguscio, S. Mosca, I. Ricciardi, D. Calonico, F. Levi, P. Maddaloni, Phys. Chem. Chem. Phys. 18, 16715 (2016). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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