Mid-infrared optical parametric oscillators and frequency combs for molecular spectroscopy

Markku Vainio, Lauri Halonen

Research output: Contribution to journalArticleScientificpeer-review

51 Citations (Scopus)

Abstract

Nonlinear optical frequency conversion is one of the most versatile methods to generate wavelength-tunable laser light in the mid-infrared region. This spectral region is particularly important for trace gas detection and other applications of molecular spectroscopy, because it accommodates the fundamental vibrational bands of several interesting molecules. In this article, we review the progress of the most significant nonlinear optics instruments for widely tunable, high-resolution mid-infrared spectroscopy: continuous-wave optical parametric oscillators and difference frequency generators. We extend our discussion to mid-infrared optical frequency combs, which are becoming increasingly important spectroscopic tools, owing to their capability of highly sensitive and selective parallel detection of several molecular species. To illustrate the potential and limitations of mid-infrared sources based on nonlinear optics, we also review typical uses of these instruments in both applied and fundamental spectroscopy.
Original languageEnglish
Pages (from-to)4266-4294
JournalPhysical Chemistry Chemical Physics
Volume18
Issue number6
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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Molecular spectroscopy
molecular spectroscopy
Optical parametric oscillators
nonlinear optics
parametric amplifiers
Nonlinear optics
Infrared radiation
frequency converters
tunable lasers
continuous radiation
Laser tuning
Optical frequency conversion
generators
infrared spectroscopy
Optical resolving power
Light sources
Infrared spectroscopy
high resolution
Gases
gases

Cite this

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Mid-infrared optical parametric oscillators and frequency combs for molecular spectroscopy. / Vainio, Markku; Halonen, Lauri.

In: Physical Chemistry Chemical Physics, Vol. 18, No. 6, 2016, p. 4266-4294.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Vainio, Markku

AU - Halonen, Lauri

PY - 2016

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AB - Nonlinear optical frequency conversion is one of the most versatile methods to generate wavelength-tunable laser light in the mid-infrared region. This spectral region is particularly important for trace gas detection and other applications of molecular spectroscopy, because it accommodates the fundamental vibrational bands of several interesting molecules. In this article, we review the progress of the most significant nonlinear optics instruments for widely tunable, high-resolution mid-infrared spectroscopy: continuous-wave optical parametric oscillators and difference frequency generators. We extend our discussion to mid-infrared optical frequency combs, which are becoming increasingly important spectroscopic tools, owing to their capability of highly sensitive and selective parallel detection of several molecular species. To illustrate the potential and limitations of mid-infrared sources based on nonlinear optics, we also review typical uses of these instruments in both applied and fundamental spectroscopy.

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