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

doi:10.1109/58.827444

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 journal › Article › peer-review

3 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 language	English
Pages (from-to)	506-512
Number of pages	7
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	47
Issue number	2
DOIs	https://doi.org/10.1109/58.827444
Publication status	Published - Jan 1 2000
Externally published	Yes

ASJC Scopus subject areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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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 journal › Article › peer-review

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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.",

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AU - Kaing, To

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AU - Yolissoycv, Alexander

AU - Lobanov, Serguoi

AU - Isaenko, Ludmila

PY - 2000/1/1

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N2 - 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.

AB - 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.

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

Abstract

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