Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers

B. Bernhardt, E. Sorokin, P. Jacquet, R. Thon, T. Becker, I. T. Sorokina, N. Picqué, T. W. Hänsch

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint region because gases have tell-tale absorption features associated with molecular rovibrations. This region can be for instance exploited to detect small traces of environmental and toxic vapors in atmospheric and industrial applications. Novel Fourier-transform spectroscopy without moving parts, based on time-domain interferences between two comb sources, can in particular benefit optical diagnostics and precision spectroscopy. To date, high-resolution and -sensitivity proof-of-principle experiments have only been reported in the near-infrared region where frequency-comb oscillators are conveniently available. However, as most of the molecular transitions in this region are due to weak overtone bands, this spectral domain is not ideal for sensitive and rapid detection. Here we present a proof-of-principle experiment of frequency-comb Fourier-transform spectroscopy with two Cr2+:ZnSe femtosecond oscillators directly emitting in the 2.4 $m mid-infrared region. The acetylene absorption spectrum in the region of the backslashnu1+backslashnu5^1band, extending from 2370 to 2525 nm, could be recorded within a 10 $s acquisition time without averaging with 12 GHz resolution.
Original languageEnglish
Pages (from-to)3-8
Number of pages6
JournalApplied Physics / B
Volume100
Issue number1
DOIs
Publication statusPublished - 1 Jul 2010
Externally publishedYes

Fields of Expertise

  • Advanced Materials Science

Cite this

Bernhardt, B., Sorokin, E., Jacquet, P., Thon, R., Becker, T., Sorokina, I. T., ... Hänsch, T. W. (2010). Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers. Applied Physics / B, 100(1), 3-8. https://doi.org/10.1007/s00340-010-4080-0

Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers. / Bernhardt, B.; Sorokin, E.; Jacquet, P.; Thon, R.; Becker, T.; Sorokina, I. T.; Picqué, N.; Hänsch, T. W.

In: Applied Physics / B, Vol. 100, No. 1, 01.07.2010, p. 3-8.

Research output: Contribution to journalArticleResearchpeer-review

Bernhardt, B, Sorokin, E, Jacquet, P, Thon, R, Becker, T, Sorokina, IT, Picqué, N & Hänsch, TW 2010, 'Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers' Applied Physics / B, vol. 100, no. 1, pp. 3-8. https://doi.org/10.1007/s00340-010-4080-0
Bernhardt, B. ; Sorokin, E. ; Jacquet, P. ; Thon, R. ; Becker, T. ; Sorokina, I. T. ; Picqué, N. ; Hänsch, T. W. / Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers. In: Applied Physics / B. 2010 ; Vol. 100, No. 1. pp. 3-8.
@article{2120889234c343f89dd90b2ed2c4ec96,
title = "Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers",
abstract = "The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint region because gases have tell-tale absorption features associated with molecular rovibrations. This region can be for instance exploited to detect small traces of environmental and toxic vapors in atmospheric and industrial applications. Novel Fourier-transform spectroscopy without moving parts, based on time-domain interferences between two comb sources, can in particular benefit optical diagnostics and precision spectroscopy. To date, high-resolution and -sensitivity proof-of-principle experiments have only been reported in the near-infrared region where frequency-comb oscillators are conveniently available. However, as most of the molecular transitions in this region are due to weak overtone bands, this spectral domain is not ideal for sensitive and rapid detection. Here we present a proof-of-principle experiment of frequency-comb Fourier-transform spectroscopy with two Cr2+:ZnSe femtosecond oscillators directly emitting in the 2.4 $m mid-infrared region. The acetylene absorption spectrum in the region of the backslashnu1+backslashnu5^1band, extending from 2370 to 2525 nm, could be recorded within a 10 $s acquisition time without averaging with 12 GHz resolution.",
author = "B. Bernhardt and E. Sorokin and P. Jacquet and R. Thon and T. Becker and Sorokina, {I. T.} and N. Picqu{\'e} and H{\"a}nsch, {T. W.}",
year = "2010",
month = "7",
day = "1",
doi = "10.1007/s00340-010-4080-0",
language = "English",
volume = "100",
pages = "3--8",
journal = "Applied Physics / B",
issn = "0946-2171",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Mid-infrared dual-comb spectroscopy with 2.4 $m Cr2+:ZnSe femtosecond lasers

AU - Bernhardt, B.

AU - Sorokin, E.

AU - Jacquet, P.

AU - Thon, R.

AU - Becker, T.

AU - Sorokina, I. T.

AU - Picqué, N.

AU - Hänsch, T. W.

PY - 2010/7/1

Y1 - 2010/7/1

N2 - The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint region because gases have tell-tale absorption features associated with molecular rovibrations. This region can be for instance exploited to detect small traces of environmental and toxic vapors in atmospheric and industrial applications. Novel Fourier-transform spectroscopy without moving parts, based on time-domain interferences between two comb sources, can in particular benefit optical diagnostics and precision spectroscopy. To date, high-resolution and -sensitivity proof-of-principle experiments have only been reported in the near-infrared region where frequency-comb oscillators are conveniently available. However, as most of the molecular transitions in this region are due to weak overtone bands, this spectral domain is not ideal for sensitive and rapid detection. Here we present a proof-of-principle experiment of frequency-comb Fourier-transform spectroscopy with two Cr2+:ZnSe femtosecond oscillators directly emitting in the 2.4 $m mid-infrared region. The acetylene absorption spectrum in the region of the backslashnu1+backslashnu5^1band, extending from 2370 to 2525 nm, could be recorded within a 10 $s acquisition time without averaging with 12 GHz resolution.

AB - The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint region because gases have tell-tale absorption features associated with molecular rovibrations. This region can be for instance exploited to detect small traces of environmental and toxic vapors in atmospheric and industrial applications. Novel Fourier-transform spectroscopy without moving parts, based on time-domain interferences between two comb sources, can in particular benefit optical diagnostics and precision spectroscopy. To date, high-resolution and -sensitivity proof-of-principle experiments have only been reported in the near-infrared region where frequency-comb oscillators are conveniently available. However, as most of the molecular transitions in this region are due to weak overtone bands, this spectral domain is not ideal for sensitive and rapid detection. Here we present a proof-of-principle experiment of frequency-comb Fourier-transform spectroscopy with two Cr2+:ZnSe femtosecond oscillators directly emitting in the 2.4 $m mid-infrared region. The acetylene absorption spectrum in the region of the backslashnu1+backslashnu5^1band, extending from 2370 to 2525 nm, could be recorded within a 10 $s acquisition time without averaging with 12 GHz resolution.

U2 - 10.1007/s00340-010-4080-0

DO - 10.1007/s00340-010-4080-0

M3 - Article

VL - 100

SP - 3

EP - 8

JO - Applied Physics / B

JF - Applied Physics / B

SN - 0946-2171

IS - 1

ER -