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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 11 — Jun. 1, 2006
  • pp: 1645–1647

Intracavity Rayleigh–Mie scattering for multipoint, two-component velocity measurement

Daniel Bivolaru, Paul M. Danehy, and Joseph W. Lee  »View Author Affiliations


Optics Letters, Vol. 31, Issue 11, pp. 1645-1647 (2006)
http://dx.doi.org/10.1364/OL.31.001645


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Abstract

A simultaneous multipoint, two-component Doppler velocimeter is described. The system uses two optical cavities: a Fabry–Perot etalon and an optical cavity for collecting and recirculating the Rayleigh–Mie-scattered light that is collected from the measurement volume in two parallel but opposite directions. Single-pulse measurements of two orthogonal components of the velocity vector in a supersonic free jet were performed to demonstrate the technique. The recirculation of the light rejected by the interferometer input mirror also increased the signal intensity by a factor of 3.5.

© 2006 Optical Society of America

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.7250) Instrumentation, measurement, and metrology : Velocimetry

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: January 4, 2006
Manuscript Accepted: February 16, 2006

Citation
Daniel Bivolaru, Paul M. Danehy, and Joseph W. Lee, "Intracavity Rayleigh-Mie scattering for multipoint, two-component velocity measurement," Opt. Lett. 31, 1645-1647 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-11-1645


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References

  1. R. G. Seasholtz and L. J. Goodman, 'Three component velocity measurements using Fabry-Perot interferometer,' presented at the Second International Symposium on Applications of Laser Anemometry to Fluid Mechanics sponsored by Instituto Superior Tecnico (Lisbon), Lisbon, Portugal, July 2-4, 1984 (also NASA TM 83692).
  2. R. G. Seasholtz and L. J. Goldman, in Advanced Instrumentation for Aero Engine Components, AGARD Conference Proceedings No. 399 (AGARD, 1986), p. 13-1 [presented at the Propulsion and Energetics 67th Symposium, Philadelphia, Pa., May 19-23, 1986].
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