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Paper Abstract and Keywords
Presentation 2013-03-08 13:05
High-Density Optical Recording on Thin Optical Disks Using Solid Immersion Lens
Daiichi Koide, Takeshi Kajiyama, Ryuji Sato, Haruki Tokumaru (NHK), Yoshimichi Takano (NHK-ES), Kiyoshi Ohishi (NUT)
Abstract (in Japanese) (See Japanese page) 
(in English) We studied a near-field optical recording-flexible optical disk (NFR-FOD) for high-density and high-data transfer rate recording. We prototyped a high-density NFR-FOD that has a track pitch of 0.16 um and we stacked some recording layers on a thin substrate that was 0.1 mm thick. We rotated the NFR-FOD closing the mechanical stabilizer on a drive system with less than 10 ump-p of axial run-out, and performed the precise gap servo at high-rotational speed. We demonstrated near-field optical recording with a solid immersion lens with numerical aperture (NA) of 1.84 on the NFR-FOD. The NFR-FOD has four times recording density corresponding to a capacity of 100 GBytes per layer and a high-data transfer rate of 250 Mbps with rotating at half speed than that of current Blu-ray disc.
Keyword (in Japanese) (See Japanese page) 
(in English) flexible optical disk / near-field optical recording / solid immersion lens / gap servo / RHD-FF control / high density / /  
Reference Info. ITE Tech. Rep., vol. 37, no. 13, MMS2013-14, pp. 1-5, March 2013.
Paper # MMS2013-14 
Date of Issue 2013-03-01 (MMS) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Committee IEICE-MRIS MMS  
Conference Date 2013-03-08 - 2013-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical rexording, etc. 
Paper Information
Registration To MMS 
Conference Code 2013-03-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High-Density Optical Recording on Thin Optical Disks Using Solid Immersion Lens 
Sub Title (in English)  
Keyword(1) flexible optical disk  
Keyword(2) near-field optical recording  
Keyword(3) solid immersion lens  
Keyword(4) gap servo  
Keyword(5) RHD-FF control  
Keyword(6) high density  
1st Author's Name Daiichi Koide  
1st Author's Affiliation Japan Broadcasting Corp. (NHK)
2nd Author's Name Takeshi Kajiyama  
2nd Author's Affiliation Japan Broadcasting Corp. (NHK)
3rd Author's Name Ryuji Sato  
3rd Author's Affiliation Japan Broadcasting Corp. (NHK)
4th Author's Name Haruki Tokumaru  
4th Author's Affiliation Japan Broadcasting Corp. (NHK)
5th Author's Name Yoshimichi Takano  
5th Author's Affiliation NHK Engineering Service (NHK-ES)
6th Author's Name Kiyoshi Ohishi  
6th Author's Affiliation Nagaoka University of Technology (NUT)
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Speaker Author-1 
Date Time 2013-03-08 13:05:00 
Presentation Time 25 minutes 
Registration for MMS 
Paper # MMS2013-14 
Volume (vol) vol.37 
Number (no) no.13 
Page pp.1-5 
Date of Issue 2013-03-01 (MMS) 

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