Near infrared frequency comb vernier spectrometer for broadband trace gas detection

Feng Zhu, James Bounds, Aysenur Bicer, James Strohaber, Alexandre A. Kolomenskii, Christoph Gohle, Mahmood Amani, Hans A. Schuessler

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We present a femtosecond frequency comb vernier spectrometer in the near infrared with a femtosecond Er doped fiber laser, a scanning high-finesse cavity and an InGaAs camera. By utilizing the properties of a frequency comb and a scanning high-finesse cavity such a spectrometer provides broad spectral bandwidth, high spectral resolution, and high detection sensitivity on a short time scale. We achieved an absorption sensitivity of ∼8 × 10-8cm-1Hz-1/2, corresponding to a detection limit of ∼70 ppbv for acetylene, with a resolution of ∼1.1 GHz in single images taken in 0.5 seconds and covering a frequency range of ∼5 THz. Such measurements have broad applications for sensing greenhouse gases in this fingerprint near infrared region with a simple apparatus.

Original languageEnglish
Pages (from-to)23026-23033
Number of pages8
JournalOptics Express
Volume22
Issue number19
DOIs
Publication statusPublished - 22 Sep 2014

Fingerprint

Comb and Wattles
Gases
spectrometers
broadband
Acetylene
Dermatoglyphics
gases
Limit of Detection
cavities
Lasers
scanning
greenhouses
acetylene
spectral resolution
fiber lasers
coverings
frequency ranges
cameras
bandwidth
sensitivity

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Medicine(all)

Cite this

Zhu, F., Bounds, J., Bicer, A., Strohaber, J., Kolomenskii, A. A., Gohle, C., ... Schuessler, H. A. (2014). Near infrared frequency comb vernier spectrometer for broadband trace gas detection. Optics Express, 22(19), 23026-23033. https://doi.org/10.1364/OE.22.023026

Near infrared frequency comb vernier spectrometer for broadband trace gas detection. / Zhu, Feng; Bounds, James; Bicer, Aysenur; Strohaber, James; Kolomenskii, Alexandre A.; Gohle, Christoph; Amani, Mahmood; Schuessler, Hans A.

In: Optics Express, Vol. 22, No. 19, 22.09.2014, p. 23026-23033.

Research output: Contribution to journalArticle

Zhu, F, Bounds, J, Bicer, A, Strohaber, J, Kolomenskii, AA, Gohle, C, Amani, M & Schuessler, HA 2014, 'Near infrared frequency comb vernier spectrometer for broadband trace gas detection', Optics Express, vol. 22, no. 19, pp. 23026-23033. https://doi.org/10.1364/OE.22.023026
Zhu F, Bounds J, Bicer A, Strohaber J, Kolomenskii AA, Gohle C et al. Near infrared frequency comb vernier spectrometer for broadband trace gas detection. Optics Express. 2014 Sep 22;22(19):23026-23033. https://doi.org/10.1364/OE.22.023026
Zhu, Feng ; Bounds, James ; Bicer, Aysenur ; Strohaber, James ; Kolomenskii, Alexandre A. ; Gohle, Christoph ; Amani, Mahmood ; Schuessler, Hans A. / Near infrared frequency comb vernier spectrometer for broadband trace gas detection. In: Optics Express. 2014 ; Vol. 22, No. 19. pp. 23026-23033.
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