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Title: Optical Power Limiting with Photoinduced Anisotropy of Azobenzene Films
Authors: Wu, Pengfei
Philip, Reji
Laghumavarapu, R.B.
Devulapalli, J.
Rao, D.V.G.L.N.
Kimball, Brian R.
Nakashima, M.
DeCristofano, B.S.
Issue Date: Aug-2003
Publisher: 2003 Optical Society of America
Citation: Applied Optics, 2003, Vol.42, p4560-4565
Abstract: We study the power-limiting properties of photoanisotropic azobenzene films with low-power lasers. The trans-cis photoisomerization and molecular reorientation of azobenzene molecules induced by polarized laser beams result in intensity-dependent anisotropic effects. Consequently, the transmittance of the input beam that passes through the film between two crossed polarizers becomes enhanced at low intensities and clamped at high intensities. The limiting threshold is adjustable by changing the intensity of excitation beam.
Description: Restricted Access.
ISSN: 0003-6935
1539-4522 (Online)
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Copyright: 2003 Optical Society of America
Appears in Collections:Research Papers (LAMP)

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