Drive system and readout characteristics of micro-reflector optical disc

Saito, Kimihiro; Horigome, Toshihiro; Miyamoto, Hirotaka; Yamatsu, Hisayuki; Tanabe, Norihiro; Hayashi, Kei; Fujita, Goro; Kobayashi, Seiji; Kudo, Takao; Uchiyama, Hiroshi

doi:10.1117/12.738420

Cited by 10 publications

(5 citation statements)

References 3 publications

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“…Microholographic optical data storage is a promising candidate for next-generation optical disc systems because of its compatibility with current optical disc systems. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] It can potentially achieve a huge capacity by multilayer recording and multiplexing techniques such as wavelength multiplexing and angle multiplexing. 1,2) Moreover, an optical phase multilevel scheme which increase both the capacity and transfer rate was proposed and demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Mikami¹,

Watanabe²

2013

Jpn. J. Appl. Phys.

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We use the improved Faddeev-Jackiw quantization method to quantize the electromagnetic field and its Lagrange multiplier fields. The method's comparison with the usual Faddeev-Jackiw method and the Dirac method is given. We show that this method is equivalent to the Dirac method and also retains all the merits of the usual Faddeev-Jackiw method. Moreover, it is simpler than the usual one if one needs to obtain new secondary constraints. Therefore, the improved Faddeev-Jackiw method is essential. Meanwhile, we find the new meaning of the Lagrange multipliers and explain the Faddeev-Jackiw generalized brackets concerning the Lagrange multipliers.

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Section: Introductionmentioning

confidence: 99%

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Mikami¹,

Watanabe²

2013

Jpn. J. Appl. Phys.

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“…[1][2][3] It has gained considerable development over the last years. [4][5][6][7][8][9] Multilayer microholographic approach to optical data storage is capable of overcoming the fundamental limit of storage density of digital versatile disc (DVD) and Blu-ray disc systems, which have two-dimensional (2D) storage media. Unlike the latter the multilayer optical data storage can provide high density and capacity.…”

Section: Introductionmentioning

confidence: 99%

Multilayer Microholographic Optical Data Storage with Two-Photon Recording

Steinberg¹,

Shepetkin²,

Belikov³

2013

Jpn. J. Appl. Phys.

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Silicon nanowires (NWs) and microwires (MWs) are cost-effectively integrated on a 4-inch wafer using metal-assisted electroless etching for solar cell applications. MWs are periodically positioned using low-level optical patterning in between a dense array of NWs. A spin-on-doping technique is found to be effective for the formation of heavily doped, thin n-type shells of MWs in which the radial doping profile is easily delineated by low voltage scanning electron microscopy. Controlled tapering of the NWs results in additional optical enhancement via optimization of the tradeoff between increased light trapping (by a graded-refractive-index) and increased reflectance (by decreasing areal density of NWs). Compared to single NW (or MW) arrayed cells, the co-integrated solar cells demonstrate improved photovoltaic characteristics, i.e. a short circuit current of 20.59 mA cm −2 and a cell conversion efficiency of ∼7.19% at AM 1.5G illumination.

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“…The concept of microholographic optical data storage was introduced by two groups of researchers [1,2] in the 1990s, and has seen considerable development over the last years [3][4][5][6]. Multilayer optical data storage is the logical extension of existing optical disk technologies.…”

Section: Introductionmentioning

confidence: 99%

Multilayer two-photon recording of microholograms in cationic ring-opening polymerization material

Steinberg¹,

Vasilyev²,

Belikov³

2013

J. Opt.

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We present the two-photon recording of microholograms in new cationic initiated photopolymer material. The experimental results show that the material has a square-law dependence of the refractive index change on intensity, and also the threshold character of recording. Both such dependence and the threshold character of recording make it possible to improve the microhologram localization at recording and to reduce the crosstalk at reading. Besides that, the use of two-photon absorption increases the homogeneity on depth recording and provides high values of refractive index change Δn = 3.3 × 10−3. We also describe the recording/reading of microholograms in ten layers of the designed material, and present data on reading errors and their distribution on depth.

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Drive system and readout characteristics of micro-reflector optical disc

Cited by 10 publications

References 3 publications

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Microholographic Optical Data Storage with Spatial Mode Multiplexing

Multilayer Microholographic Optical Data Storage with Two-Photon Recording

Multilayer two-photon recording of microholograms in cationic ring-opening polymerization material

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