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Appl Opt. 2004 Apr 20;43(12):2397-9.

Adjustable spiral phase plate.

Author information

1
Department of Physics, Technion-Israel Institute of Technology, 32000 Haifa, Israel.

Abstract

A spiral phase retarder phi(r, theta) = mtheta has been constructed with use of a deformed cracked plexiglass plate. By changing the degree of deformation, the retarder can be adjusted for use at any wavelength, and the value of the phase step 2pim at theta = 2pi can be chosen.

PMID:
15119607

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