Crossref journal-article
AIP Publishing
Journal of Applied Physics (317)
Abstract

Interaction of a laser beam with a transversely moving nonlinear medium has been studied both experimentally and theoretically. With the mesophase of a nematic liquid crystal (NLC) as the nonlinear medium, transverse motion of the NLC at speeds of ∼1 μm/s relative to the laser beam, causes remarkable changes in its orientational state. The response of the medium to the transverse motion is enhanced considerably in the case of threshold nonlinearity where the reorientation of the LC takes place as a second order phase transition. The diffusive transport of light induced perturbations of the nonlinear medium, give rise to a far field projection pattern that consist of a system of concentric arcs. The observed phenomena can lead to potential applications for measurement or visual sensing of motion. Alternatively it can provide a means for the characterization of nonlinear materials.

Bibliography

Tabiryan, N. V., Nersisyan, S. R., & Warenghem, M. (1998). Interaction of light with a transversely moving nonlinear medium: Beyond Doppler laser velocimetry. Journal of Applied Physics, 83(1), 1–7.

Authors 3
  1. N. V. Tabiryan (first)
  2. S. R. Nersisyan (additional)
  3. M. Warenghem (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 9:53 a.m.)
Deposited 1 year, 7 months ago (Feb. 2, 2024, 3:42 p.m.)
Indexed 1 year, 6 months ago (Feb. 10, 2024, 10:57 p.m.)
Issued 27 years, 8 months ago (Jan. 1, 1998)
Published 27 years, 8 months ago (Jan. 1, 1998)
Published Print 27 years, 8 months ago (Jan. 1, 1998)
Funders 0

None

@article{Tabiryan_1998, title={Interaction of light with a transversely moving nonlinear medium: Beyond Doppler laser velocimetry}, volume={83}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.366694}, DOI={10.1063/1.366694}, number={1}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Tabiryan, N. V. and Nersisyan, S. R. and Warenghem, M.}, year={1998}, month=jan, pages={1–7} }