Title :
Sub-Doppler NICE-OHMS spectroscopy at 8.5 microns using a quantum cascade laser
Author :
Taubman, Matthew S. ; Williams, Rebecca M. ; Myers, Tanya L. ; Capasso, Federico ; Gmachl, C. ; Sivco, D. ; Hutchinson, A.J. ; Cho, Andrew Y.
Author_Institution :
Pacific Northwest Nat. Lab., Richland, WA, USA
Abstract :
Summary from only given. Noise-immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) was used to detect the Lamb-dip of nitrous oxide (N/sub 2/O). We used both direct cavity-enhanced absorption and NICE-OHMS. We used a quantum cascade laser operating at 8.5 microns which was tightly locked by the Pound-Drever-Hall technique.
Keywords :
Doppler measurement; Lamb shift; heterodyne detection; infrared spectra; infrared spectroscopy; nitrogen compounds; quantum cascade lasers; spectroscopic light sources; 8.5 micron; Lamb-dip; N/sub 2/O; Pound-Drever-Hall technique; direct cavity-enhanced absorption; nitrous oxide; noise-immune cavity-enhanced optical heterodyne molecular spectroscopy; quantum cascade laser; sub-Doppler NICE-OHMS spectroscopy; Absorption; Gas lasers; Laser tuning; Optical buffering; Optical feedback; Optical mixing; Optical noise; Quantum cascade lasers; Quantum dot lasers; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034402
