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Common Volume Multiplexing Technigues Coupled Wave Theory Derivation of Angular Selectivity Experimental Study of Angular Selectivity Optimum Beam Ratio.

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Presentation on theme: "Common Volume Multiplexing Technigues Coupled Wave Theory Derivation of Angular Selectivity Experimental Study of Angular Selectivity Optimum Beam Ratio."— Presentation transcript:

1 Common Volume Multiplexing Technigues Coupled Wave Theory Derivation of Angular Selectivity Experimental Study of Angular Selectivity Optimum Beam Ratio Parameter Optimization For Holographic Disk Recording Time Schedule Holographic Recording Materials SNR Improving Technique Crystal Quality Dynamic Range Metric Angle-dependent Diffraction Efficiency Coherent Optical Correlators The Direct Optical Correlation Experiment(at NIST) Holographic 3-D Disk System Proposed by SONY Non-volatile holographic storage in doubly doped lithium niobate crystals (Korean) Influence of Phase Masks on Fourier Transform Hologram Holographic storage using shift multiplexing Channel codes for digital holographic data storage Holographic Medium and process for use thereof Multilayer volume holographic optical memory Phase correlation multiplex holography Volume hologram scheme using optical fiber for spatial multiplexing Phase code multiplexing HDDS Seminar Sources : http://holospace.dwe.co.kr/ Coupled wave theory

2 Contents Coupled Wave Theory for Thick Hologram Gratings Model of Hologram Grating for Analysis Sinusoidal Gratings Assumption for Analysis Wave Propagation in the Grating Coupling Constant Total Electric Field in the Grating Relationship Between Propagation Vectors(, ) and Grating Vector( ) Bragg Condition Derivation of Bragg Condition Dephasing Measure Derivation of Dephasing Measure The Coupled Wave Equation General Solution of the Coupled Wave Equation Boundary Conditions for Transmission & Reflection Hologram Definition of the Diffraction Efficiency Solution for Transmission and Reflection Holograms Diffraction Efficiency of Lossless Dielectric Gratings(Transmission Type) Angular and Wavelength Sensitivity of Lossless Dielectric Gratings ( Transmission Type) Diffraction Efficiency of Lossy & No Slant Dielectric Gratings (Transmission Type) Influence of loss on the angular sensitivity of a dielectric grating (Transmission Type) Diffraction Efficiency of Lossy & Slant Dielectric Gratings (Transmission Type) Derivation of Slant Factor in Case of Bragg Incidence Influence of loss on the efficiency of a slanted dielectric grating (Transmission Type) Recording Geometry in a Holographic Memory System Relationship between Grating Angle and Recording Geometry Angular Selectivity Derivation of Angular Selectivity Full Refraction Condition & Critical Angle Angular Selectivity According to Recording Geometry Number of Angular Multiplexed Holograms “M” Diffraction Efficiency Dependency on Refractive Index Modulation Depth of the Grating Centeral Peak Broadening I Centeral Peak Broadening II Discussion about The Angular Selectivity Theoretical Recording Kinetics Experimental Recording Kinetics Reference

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