Cavity-locked ring down spectroscopy

Details Cavity-locked ring down spectroscopy Cavity-locked ring down spectroscopy

1998-04-15

2000-07-04

Hantis, K. P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356440, G01N 2100

Patent

active

060846828

ABSTRACT:
Distinct locking and sampling light beams are used in a cavity ring-down spectroscopy (CRDS) system to perform multiple ring-down measurements while the laser and ring-down cavity are continuously locked. The sampling and locking light beams have different frequencies, to ensure that the sampling and locking light are decoupled within the cavity. Preferably, the ring-down cavity is ring-shaped, the sampling light is s-polarized, and the locking light is p-polarized. Transmitted sampling light is used for ring-down measurements, while reflected locking light is used for locking in a Pound-Drever scheme.

REFERENCES:
patent: 5528040 (1996-06-01), Lehmann
patent: 5815277 (1998-09-01), Zare
Drever, R. et al. Laser Phase and Frequency Stabilization Using an Optical Resonator. Applied Physics B 31, 97-105. 1983.
Li, Z. et al., Swept-frequency induced optical cavity, Optics Communications, 86, pp. 51-57, 1991.
DeVoe, R. et al., Laser frequency division and stabilization, American Physical Society,, 1984, pp. 2827-2829.
Romanini, D. et al., Diode laser cavity ring down spectroscopy, Chemical Physics Letters, 270, pp. 538-545, 1997.
Romanini, D. et al., CW cavity ring down spectroscopy, Chemical Physics Letters, 264, pp. 316-322, 1997.
Harb, C. et al., Intensity-noise properties of injection-locked lasers, Am. Physical Soc., 54(5), pp. 4370-4382, 1996.
Engeln, R. et al., Phase shift cavity ring down absorption spectroscopy, Chemical Physics Letters, 262, pp. 105-109, 1996.
Engeln, R. et al., Polarization dependent cavity down spectroscopy, J. Chem. Phys., 107(12), pp. 4458-4467, 1997.

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