Abstract
Sensitive sub-Doppler resolution molecular spcctroscopy developed by Hall and co-workers [J. Opt. Soc. Am. B 15 (1998) 6] has been applied to the 1.66μm region using a widely tunable external-cavity diode laser. We have recorded saturated absorption spectra of the 2v3vibrational overtone band of methane with a sensitivity of 9.5 × 10-11 cm-1 at a time constant of 1.25s and a spectral linewidth of 320 kHz (full width at half maximun; FWHM) over the tunable range of 1.63 to 1.68μm.
| Original language | English |
|---|---|
| Pages (from-to) | 920-922 |
| Number of pages | 3 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 38 |
| Issue number | 2 A |
| DOIs | |
| Publication status | Published - 1999 |
| Externally published | Yes |
Keywords
- Diode laser spectroscopy
- Fm spectroscopy
- Infrared spectroscopy
- Saturation spectroscopy
- Sensitive spectroscopy
ASJC Scopus subject areas
- General Engineering
- General Physics and Astronomy
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