Compact, broadly tunable, mid-IR source for the spectroscopic investigation of molecular reference lines in the 27- to 33-THz range

To Kaing, Jean Jacques Zondy, Alexander Yolissoycv, Serguoi Lobanov, Ludmila Isaenko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We report on the improvement of a tunable, high resolution, diode laser-based, difference-frequency spectrometer using an AgGaS2 nonlinear crystal. We use a type-II cut crystal as a part of the improvement compared with a type-I cut, which was used in our preliminary setup. The two tunable laser diodes are operating near λ3 = 778 nm (pump) and λ2 = 842 nm (signal) with a sub-100-kHz linewidth. The high resolution spectrometer is being developed as an alternative to CO2 laser spectrometers in the 9- to 11-μm range. Using a dual-arm cavity to enhance the two radiation powers, and with 35 mW in front of the 778-nm arm and 100 mW in front of the 842-nm arm, about 70 nW of the tunable 10-μm radiation are generated. This power level is enough to investigate the linear absorption spectroscopy of SF6. Doppler-limited spectra over 2 GHz are recorded, showing the wide continuous tunability of the spectrometer.

Original languageEnglish
Pages (from-to)506-512
Number of pages7
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume47
Issue number2
DOIs
Publication statusPublished - Jan 1 2000
Externally publishedYes

Fingerprint

Spectrometers
spectrometers
semiconductor lasers
Semiconductor lasers
laser spectrometers
high resolution
radiation
tunable lasers
Radiation
Crystals
Laser tuning
crystals
absorption spectroscopy
Absorption spectroscopy
Linewidth
pumps
cavities
Pumps
Lasers

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Cite this

Compact, broadly tunable, mid-IR source for the spectroscopic investigation of molecular reference lines in the 27- to 33-THz range. / Kaing, To; Zondy, Jean Jacques; Yolissoycv, Alexander; Lobanov, Serguoi; Isaenko, Ludmila.

In: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 47, No. 2, 01.01.2000, p. 506-512.

Research output: Contribution to journalArticle

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