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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 9 — Mar. 20, 2000
  • pp: 1449–1453

Monolithic Folded Resonator for Evanescent Wave Cavity Ringdown Spectroscopy

Andrew C. R. Pipino  »View Author Affiliations


Applied Optics, Vol. 39, Issue 9, pp. 1449-1453 (2000)
http://dx.doi.org/10.1364/AO.39.001449


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Abstract

An optical resonator is characterized that employs both ultrahigh-reflective coated surfaces and total internal reflection to enable cavity ringdown spectroscopy of surfaces, films, and liquids. The monolithic folded design possesses a polarization-independent finesse that allows polarization-dependent phenomena, such as molecular orientation, to be probed. Although a restricted bandwidth (~15% of the design wavelength) results from use of reflective coatings, the resonator provides high sensitivity and facile operation. A minimum detectable absorption of 2.2 × 10−6 was obtained for single laser shots by use of multimode excitation at 530 nm with an excimer-pumped, pulsed dye laser.

© 2000 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(240.6490) Optics at surfaces : Spectroscopy, surface
(300.1030) Spectroscopy : Absorption

Citation
Andrew C. R. Pipino, "Monolithic Folded Resonator for Evanescent Wave Cavity Ringdown Spectroscopy," Appl. Opt. 39, 1449-1453 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-9-1449


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