Laser spectroscopy with a pulsed, narrowband infrared optical parametric oscillator system: a practical, modular approach |
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| Authors: | GW Baxter H-D Barth BJ Orr |
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| Institution: | School of Chemistry and Centre for Lasers & Applications, Macquarie University, Sydney, NSW 2109, Australia (Fax: +61-2/9850-8313, E-mail: brian.orr@mq.edu.au), AU
Institut für Physikalische Chemie, Johann Wolfgang Goethe Universit?t Frankfurt, 60439 Frankfurt/Main, Germany (Fax: +49-69/7982-9560, E-mail: h.d.barth@chemie.uni-frankfurt.de), DE
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| Abstract: | -1 in a single scan. The potential of the OPO system for linear and nonlinear-optical spectroscopy is demonstrated by recording
high-resolution photoacoustic absorption and coherent anti-Stokes Raman spectra of methane, as a gas and in a pulsed supersonic
free jet. This narrowband tunable infrared source is shown to scan reliably with an optical bandwidth as small as 0.007 cm-1 (210 MHz) full width half maximum (fwhm), close to the fourier-transform limit.
Received: 5 February 1998/Revised version: 6 March 1998 |
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| Keywords: | PACS: 33 20 -t 42 62 Fi 42 65 Yj |
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