Multiplexed holographic reflection gratings in sol-gel

The multiplexing of holographic reflection gratings with a spatial frequency higher than 5400 lines/mm in photopolymerizable sol-gel materials is experimentally demonstrated. The effect of the angular separation of the gratings and exposure time is characterized. Moreover, 9 reflection gratings are angularly multiplexed with diffraction efficiencies between 6 and 12% using an energy of 9 mJ/cm2 in each exposure, resulting in a dynamic range M/# = 2.8.

[1]  Hans Joachim Eichler,et al.  High-density disk storage by multiplexed microholograms , 1998 .

[2]  Vincent Toal,et al.  Acrylamide-based photopolymer for microholographic data storage , 2006 .

[3]  A Fimia,et al.  Holographic reflection gratings in photopolymerizable solgel materials. , 2006, Optics letters.

[4]  A Fimia,et al.  Acrylamide-N,N'-methylenebisacrylamide silica glass holographic recording material. , 2004, Optics express.

[5]  Alberto Alvarez-Herrero,et al.  Shrinkage control in a photopolymerizable hybrid solgel material for holographic recording. , 2004, Applied optics.

[7]  Sergei S. Orlov,et al.  Holographic data storage systems , 1993, Proceedings of the IEEE.

[8]  Lambertus Hesselink,et al.  Microholographic multilayer optical disk data storage. , 2005, Applied optics.

[9]  Byoungho Lee,et al.  Photopolymer-based demultiplexers with Superposed holographic gratings , 2005 .

[11]  Pavel Cheben,et al.  A photopolymerizable glass with diffraction efficiency near 100% for holographic storage , 2001 .

[12]  B. Reddy,et al.  Synthesis and characterization of methacrylamidopropyltrimethylammonium chloride and N-substituted acrylamide ionomers , 2007 .

[13]  Numerical estimation of storage capacity in reflection-type holographic disk memory with three-dimensional speckle-shift multiplexing. , 2009, Journal of the Optical Society of America. A, Optics, image science, and vision.

[14]  Brian H. Marcus,et al.  Holographic data storage technology , 2000, IBM J. Res. Dev..

[15]  Ce Wang,et al.  A novel bulk sol-gel process to prepare monolithic silica materials , 1999 .

[17]  Oliver Beyer,et al.  Holographic recording of Bragg gratings for wavelength division multiplexing in doped and partially polymerized poly(methyl methacrylate). , 2003, Applied optics.

[18]  Sven Frohmann,et al.  Optical investigation of photopolymer systems for microholographic storage , 2009 .

[19]  C. Pichot,et al.  RAFT polymerization of hydrophobic acrylamide derivatives , 2005 .

[20]  T Belenguer,et al.  Holographic diffraction gratings recording in organically modified silica gels. , 1996, Optics letters.

[21]  P. Koppa,et al.  Modeling material saturation effects in microholographic recording. , 2007, Optics express.