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High efficiency panchromatic photopolymer recording material for holographic data storage systems
Affiliation:1. Department of Physics, Cochin University of Science and Technology, Cochin 682022, India;2. Advanced Materials and Sensors Division, CSIR-Central Scientific Instruments Organization, Chandigarh 160030, India;3. Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India;4. Department of Polymer Science & Rubber Technology, Cochin University of Science and Technology, Cochin 682022, India;5. Department of Applied Chemistry, Cochin University of Science and Technology, Cochin 682022, India;1. L.V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation;2. B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 61103 Kharkov, Ukraine;1. Department of Applied Physics, Faculty of Physics, Uzhhorod National University, 3 Narodna Sq., 88000 Uzhhorod, Ukraine;2. Department of Experimental Physics, Faculty of Science and Technology, University of Debrecen, 18/a Bem Sq., 4026 Debrecen, Hungary;3. Department of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210 Pardubice, Czech Republic;1. Department of Atomic and Molecular Physics, Manipal University, Manipal 576104, India;2. Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX 78256, USA
Abstract:Studies carried out to gauge the potential of a metal-ion doped panchromatic photopolymer recording material for application in real-time holographic data storage is presented. The photopolymer films are spin coated on glass plates to ensure better surface uniformity. Volume holographic transmission gratings with peak diffraction efficiency of 80% could be stored in the photopolymer films of 100 μm thickness. An efficiency of 70% is achievable even for gratings recorded with exposure energy as low as 10 mJ/cm2. A checkerboard pattern data page recorded in the photopolymer film using a defocused 4-f recording geometry could be reconstructed with good image quality. The experimental results illustrate the competency of the developed photopolymer for holographic data storage applications.
Keywords:Holographic gratings  Diffraction efficiency  Photopolymer recording media  Holographic data storage
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