Collinear Holography : Devices, Materials, Data Storage

Collinear Holography Provides state-of-the-art, in-depth knowledge on the principles, devices, and applications of collinear holography In the era of Big Data, traditional magnetic and optical storage technologies are unable to satisfy the growing demand for reliable, scalable, cost-effective, and energy-efficient data storage. Holographic storage, considered the most promising technology for meeting the future storage needs of the information age, adopts a three-dimensional volume storage mode with a theoretical storage density vastly greater than conventional optical disks. Collinear Holography: Devices, Materials, Data Storage is a comprehensive, up-to-date account of the volumetric recording technology that combines large storage capacities with high transfer rates and exceptional reliability in optical data storage systems. Written by pioneers in the field, this authoritative book provides detailed coverage of the key technological approaches, theories, applications, systems, devices, and components in the rapidly advancing field of holographic data storage. Explains the principles of collinear holography, its different system setups, key devices and components, and current challenges Describes the materials, data and media formats, servo controls, and read/write characteristics of collinear holography storage systems Details collinear holography in current applications such as holo-printing, ­correlation, and encryption Discusses futures technologies including the Holographic Versatile Disc (HVD) and the The Holographic Versatile Card (HVC) Collinear Holography: Devices, Materials, Data Storage is an indispensable resource for applied physicists, electrical engineers, and materials and information scientists in both academia and industry. Cover Title Page Copyright Contents Preface Foreword Chapter 1 Introduction 1.1 Big Data Era 1.2 History of Holographic Data Storage 1.3 Present Problems 1.3.1 Recording Medium 1.3.2 Multiplexing Diffraction Efficiency 1.3.3 Media Duplication 1.3.4 Pixel Matching 1.3.5 High‐Speed Reading References Chapter 2 System of Collinear Holography 2.1 Polarized Collinear Holography 2.1.1 Introduction 2.1.2 Magneto‐Optical Holography and Principle of Polarization Separation and Reproduction 2.1.3 Basic Principle of Polarization Collinear Holography 2.1.4 Results of Experiments to Verify the Basic Principle of Polarization Collinear Holography 2.2 Principle of Collinear Holography 2.2.1 Introduction 2.2.2 Basic Technology of Holographic Optical Memory 2.2.2.1 Interference and Diffraction 2.2.2.2 Multiplexing Technology 2.2.3 Recording and Playback Method of Collinear Holography and Its Proof of Principle 2.2.4 Practical Collinear Method of Optical Memory 2.2.4.1 Basic Concept 2.2.4.2 Basic Collinear Optical System 2.3 Collinear Recording and Reproduction Characteristic Evaluation Device: S‐VRD 2.4 B‐VRD 2.5 HVD‐ES1 2.5.1 System Overview and Background of Development 2.5.2 Overall System Configuration 2.5.3 Main Unit 2.5.3.1 Hardware and Parameters 2.5.3.2 System Controller Section 2.5.4 Recording Playback Condition and Corresponding Media 2.5.5 Specifications 2.6 SHOT‐2000 (Standard Holographic Optical Tester for Collinear System) 2.6.1 History of SHOT‐2000 Development 2.6.2 SHOT‐2000 System Outline 2.6.2.1 Device Appearance 2.6.2.2 Actuality of Disc Evaluation 2.6.2.3 Block Diagram 2.6.3 Optical System (Light Source, SLM, Actuator, Camera, etc.) 2.6.3.1 Green Laser 2.6.3.2 SLM (DMD) 2.6.3.3 Objective Lens Unit 2.6.3.4 Structure of HVD 2.6.3.5 CMOS Camera 2.6.3.6 Red Laser for Servo 2.6.4 Control System 2.6.5 Control Software (Recording, Reconstruction, Sequence Control, and so on) 2.6.5.1 Parameter Setting Screen 2.6.5.2 Evaluation Result Display Screen 2.6.5.3 Evaluation Items 2.6.6 Current Research and Development Using SHOT‐2000 References Chapter 3 Theories of Collinear Holography 3.1 Analysis of a Collinear Holographic Storage System: Introduction of Pixel Spread Function 3.2 Theoretical Treatment of the Collinear System and Formulate Numerical Evaluation Technique Based on the Scalar Diffraction Theory 3.2.1 Principle of Optical Autocorrelation Method 3.2.2 Simulation Scheme for Collinear System 3.2.2.1 Formulization of VIE 3.2.2.2 Recording Process 3.2.3 Numerical Evaluation 3.3 Orthogonal Reference Patterns Multiplexing for Collinear Holographic Data Storage 3.3.1 Principle of the ORPM Method 3.3.1.1 Theoretical Formulation for the RPM Method 3.3.1.2 Orthogonal Condition 3.3.1.3 Parallel Optical Image Superimposition 3.3.1.4 Orthogonal Radial‐Line RPs 3.3.2 Crosstalk Analysis for ORPM 3.3.3 Orthogonal Reference Patterns Modulated Shifting Multiplexing 3.3.4 Experimental Results 3.4 Simulation of Interference Fringes Formed by Collinear Method References Chapter 4 Key Devices and Components 4.1 Lasers 4.1.1 Introduction 4.1.2 Solid Lasers for Collinear Technology 4.1.3 Laser Diode for HVD‐ROM 4.1.4 Conclusions 4.2 DMD 4.3 CMOS 4.4 Servo Actuator References Chapter 5 Materials 5.1 Holographic Media for Commercial Uses 5.1.1 Introduction 5.1.2 Media Developed by InPhase and Aprilis 5.1.2.1 HDS Recording System 5.1.2.2 InPhase Media 5.1.2.3 Aprilis Media 5.1.3 Conclusion 5.2 Holographic Photopolymer Materials 5.2.1 Introduction 5.2.2 Photopolymerization and Grating Formation Processes 5.2.2.1 Photochemical Reactions 5.2.2.2 Holographic Grating Formation in a Binder‐Based Photopolymer 5.2.2.3 Holographic Grating Formation in an NPC 5.2.3 Holographic Characterization Methods 5.2.4 Holographic Photopolymer Materials and Their Improvement for a High‐Spatial‐Resolution Recording 5.2.5 Conclusion 5.3 PQ/PMMA 5.3.1 Introduction 5.3.2 Material Preparation 5.3.3 Photochemical Reaction 5.3.4 Results and Discussions 5.3.4.1 Fourier Transform Infrared Spectroscopic Measurements 5.3.4.2 Ultraviolet–Visible Spectroscopic Measurements 5.3.4.3 Photoinduced Birefringence 5.3.4.4 Orthogonal Linearly Polarized Holography 5.3.5 Applications References Chapter 6 Data Format 6.1 3 : 16 Modulation 6.2 Sync Format 6.3 Reference Pattern 6.3.1 Dependence on the Reference Patterns 6.3.2 Dependence on the Width of the Reference Pattern 6.3.3 Adjustment Light Energy Ratio 6.4 Phase Modulation 6.4.1 Introduction 6.4.2 Fundamental Principle of Optical Phase‐Locked Collinear System 6.4.2.1 Fundamental Principles and Experimental Results 6.4.2.2 Optical Recording and Reproducing System for Optical Phase Locking 6.4.2.3 Page Data Structure of Optical Phase‐Locked System 6.4.2.4 Phase and Multipage Data Recording and Playback Process 6.4.3 Phase Locked Multi Phase Recording with Optical Phase Locking 6.4.3.1 Fundamental Experiment of Four‐Phase Gradation Recording 6.4.3.2 Factor Analysis of Phase Error 6.4.4 Phase Multi Level Gray Scale Recording and Reproduction Characteristics of Optical Phase‐Locked System 6.4.5 Fundamental Principles of Phase Encoding Multiplexed Recording 6.4.6 Summary 6.5 Low‐Density Parity‐Check Code 6.6 Disc Format 6.6.1 Playback Sequence 6.6.2 On‐the‐Fly Recording/Playback Experiment References Chapter 7 Characteristics of Write and Read 7.1 Introduction 7.2 Shift Selectivity 7.2.1 Evaluation of Playback Signal Strength with Respect to Movement of Playback Position 7.2.2 Demonstration of Collinear Shift Multiplex Recording and Playback Principle 7.3 Parameters 7.3.1 M/# 7.3.2 SNR 7.4 Symbol Error 7.4.1 Burst Error Determination and Image Observation of Error Part 7.4.2 Estimation of Noise Generation Using Numerical Simulations 7.5 Numerical Analysis of Collinear Shift Selectivity 7.6 Summary References Chapter 8 System Margin of a Collinear Holographic Data Storage System 8.1 Defocus Margin 8.2 Detrack Margin 8.3 Image Plane Margins 8.4 Tilt Margin 8.4.1 Absolute Value Tilt Margin 8.4.2 Relative Value Tilt Margin 8.5 Wavelength Margin 8.5.1 Wavelength Shift Margin 8.5.2 Wavelength Spectrum Margin 8.6 Temperature Compensation for Collinear Holographic Data Storage 8.6.1 Introduction 8.6.2 Thermal Effects of the CHDSS 8.6.3 Temperature Compensation Condition for the CHDSS 8.6.4 Summary 8.7 Noise Margin 8.7.1 Noise Margin Improvement in Binary Modulation HDS 8.7.2 Noise Margin Improvement in Multilevel Modulation HDS 8.7.2.1 Convolutional Neural Network Decoding 8.7.2.2 Compressed Sensing Decoding 8.7.3 Summary References Chapter 9 Applications 9.1 High‐Speed Optical Correlation System Based on Collinear Holography 9.1.1 Introduction 9.1.2 Optical Correlator Based on Collinear Holography 9.1.2.1 Basic Concept of Optical Correlator 9.1.2.2 Optical Setup 9.1.2.3 Correlation Speed 9.1.3 Applications of the Optical Correlator Based on Collinear Holography 9.1.3.1 Basic Configuration 9.1.3.2 Face Recognition Application 9.1.3.3 Image Retrieval Function 9.1.3.4 Sketch‐Based Image Retrieval Application 9.2 3D Holographic Printer 9.2.1 Introduction 9.2.2 Principle of Exposure Formation of Lippmann Hologram by Collinear Method 9.2.3 Hologram Recording/Reproduction Principle of Full Parallax 3D Image 9.2.4 Holographic 3D Printer System: CDP‐1 9.2.5 Exposure Printing of 3D Images Using CDP‐1 9.2.6 Summary 9.3 Encryption References Index EULA