Two-tone frequency-modulation spectroscopy in off-axis cavity (Articolo in rivista)

Type
Label
  • Two-tone frequency-modulation spectroscopy in off-axis cavity (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1364/OL.38.004625 (literal)
Alternative label
  • Malara, P.; Witinski, M. F.; Gagliardi, G.; De Natale, P. (2013)
    Two-tone frequency-modulation spectroscopy in off-axis cavity
    in Optics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Malara, P.; Witinski, M. F.; Gagliardi, G.; De Natale, P. (literal)
Pagina inizio
  • 4625 (literal)
Pagina fine
  • 4628 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84887979500&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 38 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 22 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale Delle Ricerche-Istituto Nazionale di Ottica, via campi flegrei 34, Pozzuoli (NA), Italy; Eos Photonics, Inc., Cambridge, MA 02138, United States; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States (literal)
Titolo
  • Two-tone frequency-modulation spectroscopy in off-axis cavity (literal)
Abstract
  • As opposed to a conventional optical resonator, an off-axis-aligned cavity is able to transmit without distortion radiation modulated at a frequency even far above the cavity bandpass. This allows us to implement a simple spectroscopic technique that combines the cavity path-length enhancement of integrated cavity output spectroscopy (ICOS) and the noise reduction associated with radio-frequency modulation (FM). An FM-ICOS spectrometer is demonstrated for the first time using a two-tone modulation technique. The performance is compared to the traditional ICOS by examining the acetylene absorption at 1543.77 nm. A signal-to-noise ratio improvement by a factor 3.5 is found with our proof-of-concept setup. Larger improvements are expected in a more optimized setup. (C) 2013 Optical Society of America (literal)
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