Share Email Print

Proceedings Paper

Sub-Doppler Double Resonance Spectroscopy Of NH3 Using A Tunable Diode Laser
Author(s): Willes H Weber
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Sub-Doppler double resonance experiments are described in which a fixed frequency CO laser pumps a 6 μm v4 transition in NH3, while a tunable diode laser probes a 10 μm v2 transition having a common lower level. The experiments are done with a precision Stark cell inside the CO laser cavity. A pump transition is Stark-tuned into exact coincidence with the CO laser, which is then Lamb-dip stabilized on the transition. The probe beam overlaps the pump beam colinearly in the Stark cell, and the double resonance signals appear as nar-row transmission peaks on the diode laser frequency scans. The narrowest observed widths are c=d3 MHz (FWHM), a large portion of which is due to unresolved hyperfine structure. An analysis of the various broadening mechanisms indicates that under optimum conditions the diode laser contributes less than 1 MHz to the widths.

Paper Details

Date Published: 26 November 1983
PDF: 11 pages
Proc. SPIE 0438, Tunable Diode Laser Development and Spectroscopy Applications, (26 November 1983); doi: 10.1117/12.937459
Show Author Affiliations
Willes H Weber, Ford Motor Company (United States)

Published in SPIE Proceedings Vol. 0438:
Tunable Diode Laser Development and Spectroscopy Applications
Chiwoei Wayne Lo, Editor(s)

© SPIE. Terms of Use
Back to Top