Frequency-comb-referenced molecular spectroscopy in the mid-infrared region

Markku Vainio, Mikko Merimaa, Lauri Halonen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A simple method for absolute-frequency measurements of molecular transitions in the mid-IR region is reported. The method is based on a cw singly resonant optical parametric oscillator (SRO), which is tunable from 3.2 to 3.45 µm . The mid-IR frequency of the SRO is referenced to an optical frequency comb through its pump and signal beams. Sub-Doppler spectroscopy and absolute-frequency measurement of the P(7) transition of the {\nu}3 band of CH4 are demonstrated.
Original languageEnglish
Pages (from-to)4122-4124
JournalOptics Letters
Volume36
Issue number21
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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molecular spectroscopy
frequency measurement
parametric amplifiers
pumps
spectroscopy

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Vainio, Markku ; Merimaa, Mikko ; Halonen, Lauri. / Frequency-comb-referenced molecular spectroscopy in the mid-infrared region. In: Optics Letters. 2011 ; Vol. 36, No. 21. pp. 4122-4124.
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Frequency-comb-referenced molecular spectroscopy in the mid-infrared region. / Vainio, Markku; Merimaa, Mikko; Halonen, Lauri.

In: Optics Letters, Vol. 36, No. 21, 2011, p. 4122-4124.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Frequency-comb-referenced molecular spectroscopy in the mid-infrared region

AU - Vainio, Markku

AU - Merimaa, Mikko

AU - Halonen, Lauri

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AB - A simple method for absolute-frequency measurements of molecular transitions in the mid-IR region is reported. The method is based on a cw singly resonant optical parametric oscillator (SRO), which is tunable from 3.2 to 3.45 µm . The mid-IR frequency of the SRO is referenced to an optical frequency comb through its pump and signal beams. Sub-Doppler spectroscopy and absolute-frequency measurement of the P(7) transition of the {\nu}3 band of CH4 are demonstrated.

U2 - 10.1364/OL.36.004122

DO - 10.1364/OL.36.004122

M3 - Article

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JO - Optics Letters

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SN - 0146-9592

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