Open AccessSub-Doppler resolution limited Lamb-dip spectroscopy of NO with a quantum cascade distributed feedback laser
Author(s) -
J. T. Remillard,
Dairene Uy,
W. H. Weber,
Federico Capasso,
Claire F. Gmachl,
Albert L. Hutchinson,
Deborah L. Sivco,
J. N. Baillargeon,
A. Y. Cho
Publication year - 2000
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.7.000243
Subject(s) - optics , quantum cascade laser , cascade , doppler effect , spectroscopy , laser , physics , resolution (logic) , doppler broadening , spectral line , materials science , chemistry , computer science , chromatography , quantum mechanics , astronomy , artificial intelligence
A quantum cascade distributed feedback laser operating at 5.2 microm is used to obtain sub-Doppler resolution limited saturation features in a Lamb-dip experiment on the R(13.5)1/2 and R(13.5)3/2 transitions of NO. The dips appear as transmission spikes with full widths of ~ 4.3 MHz. At this resolution the 73 MHz _-doubling of the R(13.5)3/2 line, which is normally obscured by the 130 MHz Doppler broadening, is easily resolved.