Xuegong Deng, Xiaoming Liu, P. Sciortino, J.J. Wang, A. Nikolov, Feng Liu, Lei Chen, S. Fiorillo, N. O'Brien
We design and fabricate polarization-dependent components (PDCs) based on all-dielectric, fully planarized, multilayer microstructures of 150 nm period by using low-loss materials. Quarter-wave and half-wave phase plates at 405 nm are presented. Multifunction integrated diffractive PDCs are discussed
{"title":"Composite Microstructures for Optical Data Storage","authors":"Xuegong Deng, Xiaoming Liu, P. Sciortino, J.J. Wang, A. Nikolov, Feng Liu, Lei Chen, S. Fiorillo, N. O'Brien","doi":"10.1117/12.685166","DOIUrl":"https://doi.org/10.1117/12.685166","url":null,"abstract":"We design and fabricate polarization-dependent components (PDCs) based on all-dielectric, fully planarized, multilayer microstructures of 150 nm period by using low-loss materials. Quarter-wave and half-wave phase plates at 405 nm are presented. Multifunction integrated diffractive PDCs are discussed","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122807288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Shimura, Shotaro Ichimura, Yasushi Ashizuka, R. Fujimura, K. Kuroda, Xiaodi Tan, H. Horimai
A numerical simulations of the signal decay with media shift were performed. Shift selectivity of the page did not depend on the media thickness, but mainly determined by the width of the reference pixel area
{"title":"Shift Selectivity of the Collinear Holographic Storage System","authors":"T. Shimura, Shotaro Ichimura, Yasushi Ashizuka, R. Fujimura, K. Kuroda, Xiaodi Tan, H. Horimai","doi":"10.1117/12.685218","DOIUrl":"https://doi.org/10.1117/12.685218","url":null,"abstract":"A numerical simulations of the signal decay with media shift were performed. Shift selectivity of the page did not depend on the media thickness, but mainly determined by the width of the reference pixel area","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131639308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-06-05DOI: 10.1109/ODS.2006.1632731
Sam-nyol Hong, Hyo-kune Hwang, ln-ho Choi, Eul-scok Ko, Jin-yong Kim
This paper is about designing a reliable actuator of a high-density und high-speed optical disk drive. The higher density the disk has and the faster spinning speed the disk drive has. the more power to its coils the actuator needs because the actuator is required to cope with higher servo bandwidth. This may cause a reliability problem by conducting excessive heat to its objective lens. In this study, the factors affecting on the temperature of the lens were found through numerical simulations and experiments. Design modification and amelioration has been successfully applied under design constraints
{"title":"Thermal Analysis of an Optical Pickup Actuator","authors":"Sam-nyol Hong, Hyo-kune Hwang, ln-ho Choi, Eul-scok Ko, Jin-yong Kim","doi":"10.1109/ODS.2006.1632731","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632731","url":null,"abstract":"This paper is about designing a reliable actuator of a high-density und high-speed optical disk drive. The higher density the disk has and the faster spinning speed the disk drive has. the more power to its coils the actuator needs because the actuator is required to cope with higher servo bandwidth. This may cause a reliability problem by conducting excessive heat to its objective lens. In this study, the factors affecting on the temperature of the lens were found through numerical simulations and experiments. Design modification and amelioration has been successfully applied under design constraints","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128049467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a new concept of flat moving coil type actuator designed for the application of 5mm height small form factor optical drive. The prototype of the actuator and optical platform is realized. The trend of the optical data storage is increase of the disk capacity and the miniature of the disk drive. The state-of-the-art of the optical disk drive for mobile application is in great demand (1). The thickness limitation of the drive and the actuator is the main challenge for such application (2, 3). In this paper, we propose a flat actuator that can be employed in the small form factor optical disk drive with 5mm height limitation. 2. Actuator configuration The configuration of the proposed actuator, which is a four-wire moving-coil type actuator, is shown in Figure 1. The moving coil type actuator has the advantage of lightweight and high DC sensitivity. And we use the FP coil (fine pattern coil) instead of winding coil for the benefit of easy assembly and flat shape. Two focusing coils and two tracking coils are integrated into single FP coil. Two multi-segment magnets pair are arranged to the top and bottom of the FP coil. Here, we use several unitary magnets to confirm the feasibility of our design as shown in Figure 2. This kind of arrangement helps to create a thinner actuator. When apply the driving current, the Lorenz force propel the actuator in the focusing and tracking direction separately. The size of the actuator is 12.6 × 8.0 × 2.6mm. The thickness of the actuator can be further decreased by the available of thinner magnets. The traveling range of the actuator is 0.4mm (P-P) in focusing direction and 0.2mm (P-P) in tracking direction.
{"title":"A New Type Flat Moving-Coil Actuator for Small Form Factor Optical Disk Drive","authors":"Pei-Ching Kuo, Sheng-Fa Hou, Yueh-Lin Lee, Cheng Liao","doi":"10.1109/ODS.2006.1632734","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632734","url":null,"abstract":"We propose a new concept of flat moving coil type actuator designed for the application of 5mm height small form factor optical drive. The prototype of the actuator and optical platform is realized. The trend of the optical data storage is increase of the disk capacity and the miniature of the disk drive. The state-of-the-art of the optical disk drive for mobile application is in great demand (1). The thickness limitation of the drive and the actuator is the main challenge for such application (2, 3). In this paper, we propose a flat actuator that can be employed in the small form factor optical disk drive with 5mm height limitation. 2. Actuator configuration The configuration of the proposed actuator, which is a four-wire moving-coil type actuator, is shown in Figure 1. The moving coil type actuator has the advantage of lightweight and high DC sensitivity. And we use the FP coil (fine pattern coil) instead of winding coil for the benefit of easy assembly and flat shape. Two focusing coils and two tracking coils are integrated into single FP coil. Two multi-segment magnets pair are arranged to the top and bottom of the FP coil. Here, we use several unitary magnets to confirm the feasibility of our design as shown in Figure 2. This kind of arrangement helps to create a thinner actuator. When apply the driving current, the Lorenz force propel the actuator in the focusing and tracking direction separately. The size of the actuator is 12.6 × 8.0 × 2.6mm. The thickness of the actuator can be further decreased by the available of thinner magnets. The traveling range of the actuator is 0.4mm (P-P) in focusing direction and 0.2mm (P-P) in tracking direction.","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123217117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-06-05DOI: 10.1109/ODS.2006.1632740
M. Mansuripur, K. Kieu
We report the observed behavior of various phase-change (PC) samples under short-pulse laser irradiation. A pump-and-probe technique is used to elucidate the dynamics of melting and amorphization, as well as the mechanism of multi-pulse crystallization. We also obtain estimates of the thermal constants of the PC layer as well as those of the adjacent layers
{"title":"Sub-Nanosecond Pulsed Laser Studies of Phase-Change Recording Media","authors":"M. Mansuripur, K. Kieu","doi":"10.1109/ODS.2006.1632740","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632740","url":null,"abstract":"We report the observed behavior of various phase-change (PC) samples under short-pulse laser irradiation. A pump-and-probe technique is used to elucidate the dynamics of melting and amorphization, as well as the mechanism of multi-pulse crystallization. We also obtain estimates of the thermal constants of the PC layer as well as those of the adjacent layers","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123142657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Pichon, R. Anciant, J. Bruneau, M. des Rieux, B. Hyot, S. Gidon, M. Armand, L. Poupinet
We propose a multiphysics model of super-resolution BD ROM disk readout based on the photogeneration of free carriers in the active layer to retrieve far-field signal from pits smaller than the resolution limit
{"title":"Multiphysics Simulation of Super-Resolution BD ROM Optical Disk Readout","authors":"J. Pichon, R. Anciant, J. Bruneau, M. des Rieux, B. Hyot, S. Gidon, M. Armand, L. Poupinet","doi":"10.1117/12.685239","DOIUrl":"https://doi.org/10.1117/12.685239","url":null,"abstract":"We propose a multiphysics model of super-resolution BD ROM disk readout based on the photogeneration of free carriers in the active layer to retrieve far-field signal from pits smaller than the resolution limit","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125414613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-06-05DOI: 10.1109/ODS.2006.1632764
Jae-cheol Bae, Jooho Kim, I. Hwang, Hyunki Kim, Jin-kyung Lee, HyunSoo Park, Insik Park, J. Tominaga
We report the error rate improvement of super-resolution near field structure (Super-RENS) write-once read-many (WORM) disk at a blue laser optical system. (Laser wavelength 405 nm, numerical aperture 0.85) We used a disk of which carrier level of 75 nm is improved. We controlled the equalization (EQ) characteristics and used the adaptive write strategy and advanced partial-response maximum likelihood (PRML) technique. We obtained bit error rate (BER) of 10-4 level with new signal processing techniques. This result shows high feasibility of super-RENS technology for practical use
{"title":"Error Rate Improvement of 75 nm Super-RENS Signal in 405nm, 0.85 NA System","authors":"Jae-cheol Bae, Jooho Kim, I. Hwang, Hyunki Kim, Jin-kyung Lee, HyunSoo Park, Insik Park, J. Tominaga","doi":"10.1109/ODS.2006.1632764","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632764","url":null,"abstract":"We report the error rate improvement of super-resolution near field structure (Super-RENS) write-once read-many (WORM) disk at a blue laser optical system. (Laser wavelength 405 nm, numerical aperture 0.85) We used a disk of which carrier level of 75 nm is improved. We controlled the equalization (EQ) characteristics and used the adaptive write strategy and advanced partial-response maximum likelihood (PRML) technique. We obtained bit error rate (BER) of 10-4 level with new signal processing techniques. This result shows high feasibility of super-RENS technology for practical use","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129306057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-06-05DOI: 10.1109/ODS.2006.1632699
I. Redmond
The architecture, design and function of the opto-mechanical assembly for a 300 GB, 5 1/4" cartridge holographic recordable drive is described
介绍了一种300gb 5 1/4”盒式全息可记录驱动器的光机械组件的结构、设计和功能
{"title":"The InPhase Professional Archive Drive OMA: Design and Function","authors":"I. Redmond","doi":"10.1109/ODS.2006.1632699","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632699","url":null,"abstract":"The architecture, design and function of the opto-mechanical assembly for a 300 GB, 5 1/4\" cartridge holographic recordable drive is described","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129220173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-06-05DOI: 10.1109/ODS.2006.1632720
S. Mimouni, L. Poupinet, P. Chaton
Absrracr-We use n vector diffraction model of coherent 11. GENERALIZED DIFFRACTION INTEGRALS light focused hy an optical near-field system, fnr extracting the polarization information and its alteratinn when experiencing a AS pointed by T6r6k et al. [S], in focusing systems with phase change optical disk structure. large Fresnel numbers (focal distance many wavelengths away from the aperture) the electric field inside medium j can be written as a coherent sum of vector plane waves over the exit
{"title":"Polarization States in Near-Field Optical Recording System using a Solid Immersion Lens Illuminated by a Coherent Polarized Light","authors":"S. Mimouni, L. Poupinet, P. Chaton","doi":"10.1109/ODS.2006.1632720","DOIUrl":"https://doi.org/10.1109/ODS.2006.1632720","url":null,"abstract":"Absrracr-We use n vector diffraction model of coherent 11. GENERALIZED DIFFRACTION INTEGRALS light focused hy an optical near-field system, fnr extracting the polarization information and its alteratinn when experiencing a AS pointed by T6r6k et al. [S], in focusing systems with phase change optical disk structure. large Fresnel numbers (focal distance many wavelengths away from the aperture) the electric field inside medium j can be written as a coherent sum of vector plane waves over the exit","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128261434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A folded solid immersion mirror for heat assisted magnetic recording was designed. The key components were fabricated and tested. By separating the incident light and reflected light with a directional coupler, high numerical aperture focusing can be achieved with small side lobes and high energy efficiency.
{"title":"Stacked Planar Solid Immersion Mirror","authors":"L. Zhou, J. Bain, T. E. Schlesinger","doi":"10.1117/12.685168","DOIUrl":"https://doi.org/10.1117/12.685168","url":null,"abstract":"A folded solid immersion mirror for heat assisted magnetic recording was designed. The key components were fabricated and tested. By separating the incident light and reflected light with a directional coupler, high numerical aperture focusing can be achieved with small side lobes and high energy efficiency.","PeriodicalId":332569,"journal":{"name":"2006 Optical Data Storage Topical Meeting","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130594345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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