Del Mar Photonics

Optical Data Storage Topical Meeting and Tabletop Exhibit

May 20 ?23, 2007

The Benson Hotel
Portland, Oregon

Abstracts

Postdeadline Paper Abstracts

Below are the abstracts from the postdeadline papers that were accepted for presentation at this year抯 Optical Data Storage Topical Meeting. Three-page extended summaries of each of the accepted papers will be available on-site at the meeting as part of registration materials.

TuEPDP1桳ow Shrinkage Angular Distortion after Fixing by New Holographic Recording Material, Yoshihisa Usami1, Toshio Sasaki1, Makoto Kamo1, Satoru Yamada2, Hiroyuki Suzuki2, Masatoshi Yumoto2; 1Frontier Core-Technology Labs, Fujifilm, Japan, 2Synthetic Organic Chemistry Labs, Fujifilm, Japan. This paper reports the evaluation results of low shrinkage angular distortion after fixing by a new holographic recording material.

TuEPDP2桬rror Correcting Sparse Permutation Channel Codes for Digital Holographic Data Storage, Sergei S. Orlov1, Kirill V. Shcheglov2, Hongtau Liu3, Snejana I. Abarji3; 1Stanford Univ., USA, 2NASA JPL, USA, 3Illinois Inst. of Technology, USA. We present a new class of modulation codes based on permutation coding which satisfy the channel coding constraint suitable for digital holographic data storage, and simultaneously have strong error correction capability at high code rates.

TuEPDP3桽tudy of Aberration Compensation for Optical Pick-up in Three-Dimensional Multi-Layer Optical Memory, Seiichiro Takahashi, Yoshiyuki Matsumura, Masaaki Shidochi, Satoshi Sumi, Yoichi Tsuchiya; Optical Device Div., Electronic Device Co., Sanyo Electric Co., Ltd., Japan. We developed an optical pick-up with spherical aberration compensation for multi-layer optical disk. The measured beam profile is compared with simulation results. We confirm that the measurement result gives good agreement with the simulation result.

WDPDP1?53GB Recorded in Two-Photon 3D Disk, Edwin Walker, Alexander Dvornikov, Ken Coblentz, Sadik Esener, Peter Rentzepis; Call/Recall, Inc., USA. 253GB have been recorded in one of our two-photon 3-d disks. Experiments indicate a roadmap of full disk recordings from 0.5 to 1TB utilizing our very stable and efficient materials and new high-performance objective lens.

WDPDP2桯igh-Speed Data Recording and Retrieving Using the Image-Stabilizing Technique in a Coaxial Holographic Disk System, Koji Takasaki, Kazuyuki Hirooka, Takahiro Takeda, Tatsuo Hori, Hitoshi Okada, Masaaki Hara, Kazutatsu Tokuyama, Shinji Yamada, Satoru Seko, Atsushi Fukumoto, Kenjiro Watanabe; Sony Corp., Japan. 107 Mbps and 92 Mbps data-transfer rates for recording and retrieving, respectively, have been achieved by improving the coaxial holographic disk system using the IS technique.

WDPDP3桰nterlayer Cross-Talk Reduction by Controlling Backward Reflectivity for Multilayer Disks, Junko Ushiyama1, Yasushi Miyauchi2, Toshinori Sugiyama2, Toshimichi Shintani1, Takahiro Kurokawa1, Harukazu Miyamoto1; 1Central Res. Lab, Hitachi Ltd., Japan, 2Next Generation Optical Disk Ctr., Hitachi Maxell Ltd., Japan. Interlayer cross-talk reduction method by controlling backward reflectivity of information layers was proposed. The influence of ghost spot was suppressed even for the disks designed with the same spacer layer thickness.

WDPDP4桪HDTM CROP Holographic Storage Media for Advanced Optical Data Storage, David Waldman, E. S. Kolb, C. Wang; Aprilis, Inc., USA. Dynamic range(νm) and recording sensitivity(SR) are reported for co-locationally multiplexed holograms recorded at 407 nm in DCE Aprilis DHD?Type E holographic media utilizing the high-performance low shrinkage Cationic Ring-Opening Polymerization (CROP) chemistry method.

WDPDP5桪isc Design for Reduction of Random Data Bit Error Rate in Super-Resolution, Soichiro Eto, Hiroyuki Minemura, Yumiko Anzai, Toshimichi Shintani; Central Res. Lab, Hitachi Ltd., Japan. The disc design, simulation and experimental results are presented to improve bit error rate in super-resolution readout by reducing normal-resolution signal which causes the noise in readout of random data.

WDPDP6桬ffect of Substrates on Recording Properties of Blue-Sensitive Photopolymers, Akiko Hirao, Rumiko Hayase, Tsukasa Nakai, Kazuki Matsumoto; Storage Materials and Devices Labs, Corporate Res. and Development Ctr., Toshiba, Japan. Effects of substrates on recording properties of blue-sensitive photopolymers are reported for the first time. Polycarbonate substrate lowers M/#. Threshold energy are enlarged for polycarbonate substrate. Introduction of SiO2 layer improves the recording properties.
 

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