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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 7 — Mar. 1, 2002
  • pp: 1418–1423

Elastic light scattering with a LiNbO3 waveguide

Valeriy A. Sterligov, Sergey I. Lysenko, Pierre Aschieri, Pascal Baldi, Loı̈c Chanvillard, and Marc De Micheli  »View Author Affiliations


Applied Optics, Vol. 41, Issue 7, pp. 1418-1423 (2002)
http://dx.doi.org/10.1364/AO.41.001418


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Abstract

We present the measurements of hemispherical elastic scattering of light guided by different modes of a planar LiNbO3 waveguide. It is shown that the fundamental and the lowest-order modes are more sensitive to the scattering properties of the air-core interface, whereas higher-order modes are more sensitive to the optical inhomogeneities of the core-substrate interface. We also demonstrate that because of static polarization of LiNbO3 crystal, the air-core interface is sensitive to the presence of dust particles in air, which causes a change in the scattered light based on time of observation. This sensitivity could be used to elaborate compact sensors of air contamination.

© 2002 Optical Society of America

OCIS Codes
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(120.6660) Instrumentation, measurement, and metrology : Surface measurements, roughness
(130.3730) Integrated optics : Lithium niobate
(240.6690) Optics at surfaces : Surface waves
(290.5880) Scattering : Scattering, rough surfaces

History
Original Manuscript: July 19, 2001
Revised Manuscript: September 28, 2001
Published: March 1, 2002

Citation
Valeriy A. Sterligov, Sergey I. Lysenko, Pierre Aschieri, Pascal Baldi, Loı̈c Chanvillard, and Marc De Micheli, "Elastic light scattering with a LiNbO3 waveguide," Appl. Opt. 41, 1418-1423 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-7-1418

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