Title :
A novel cavity ringdown heterodyne spectroscopy: 1/spl times/10/sup -10/ sensitivity with microwatt light power
Author :
Jun Ye ; Hall, J.L.
Author_Institution :
Colorado Univ., CO, USA
Abstract :
Summary form only given. We present a novel technique in cavity ringdown spectroscopy that permits 1/spl times/10/sup -10/ absorption sensitivity with microwatt level light power. Heterodyne detection is employed between two alternating cavity modes, with one of them interacting with a molecular resonance.
Keywords :
acousto-optical modulation; heterodyne detection; optical beam splitters; optical noise; optical resonators; sensitivity; shot noise; spectroscopy; 1/spl times/10/sup -10/ absorption sensitivity; alternating cavity modes; cavity ringdown heterodyne spectroscopy; heterodyne detection; microwatt level light power; microwatt light power; molecular resonance; sensitivity; Absorption; Frequency; Laser transitions; Optical mixing; Optical noise; Optical saturation; Optical sensors; Ring lasers; Silicon compounds; Spectroscopy;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-608-7
