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Recording multiple holographic gratings in silver-doped photopolymer using peristrophic multiplexing |
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| Authors: | V Pramitha Rani Joseph K Sreekumar and C Sudha Kartha |
| Institution: | (1) Department of Physics, University of Osnabr?ck, Barbarastr. 7, 49069 Osnabr?ck, Germany;(2) Faculty of Physics, Department for Experimental Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria;(3) IBM Research Division, San Jose, CA, USA;(4) IBM Almaden Research Center, 650 Harry Road, 95120 San Jose, CA, USA;(5) Optical Sciences, University of Arizona, 1630 East University Boulevard, 85721 Tucson, AZ, USA |
| Abstract: | Plane-wave transmission gratings were stored in the same location of silverdoped photopolymer film using peristrophic multiplexing techniques. Constant and variable exposure scheduling methods were adopted for storing gratings in the film using He-Ne laser (632.8 nm). The role of recording geometry on the dynamic range of the material was studied by comparing the results obtained from both techniques. Peristrophic multiplexing with rotation of the film in a plane normal to the bisector of the incident beams resulted in better homogenization of diffraction efficiencies and larger M/# value. |
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