Digital holographic data storage in a high-performance photorefractive polymer composite

被引：15

作者：

Rahn, MD ^{[1
]}

West, DP ^{[1
]}

Khand, K ^{[1
]}

Shakos, JD ^{[1
]}

Shelby, RM ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Laser Photon Res Grp, Manchester M13 9PL, Lancs, England

来源：

APPLIED OPTICS | 2001年 / 40卷 / 20期

关键词：

D O I：

10.1364/AO.40.003395

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Binary information in the form of a 256 x 256 pixel array has been stored holographically within a polymeric photorefractive composite of 130-mum thickness. Devices used consisted of 55-wt. % organic chromophore 1-(2'-ethylhexyloxy)-2,5-dimethyl-4-(4"nitrophenylazo) benzene and up to 11.2-wt. % 2,4,7-trinitro-9-fluorenone (TNF) dispersed within a poly(N-vinyl carbazole) matrix. In a degenerate four-wave mixing arrangement, the refractive-index modulation and speed were 10(-3) and 200 ms, respectively. The high TNF concentration leads to short digital hologram recording times of 2 s without detriment in optical quality. Although not yet optimized, a figure of merit, M#, for holographic storage in this composite has been measured to be 0.017, and this is estimated to reach 0.18 in a revised experimental geometry. (C) 2001 Optical Society of America.

引用

页码：3395 / 3401

页数：7

共 28 条

[1] CHARGE TRANSPORT IN MOLECULARLY DOPED POLYMERS [J].

BASSLER, H .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1984, 50 (03) :347-362

[2] A precision tester for studies of holographic optical storage materials and recording physics [J].

Bernal, MP ;

Coufal, H ;

Grygier, RK ;

Hoffnagle, JA ;

Jefferson, CM ;

Macfarlane, RM ;

Shelby, RM ;

Sincerbox, GT ;

Wimmer, P ;

Wittmann, G .

APPLIED OPTICS, 1996, 35 (14) :2360-2374

[3] Content-addressable data storage by use of volume holograms [J].

Burr, GW ;

Kobras, S ;

Hanssen, H ;

Coufal, H .

APPLIED OPTICS, 1999, 38 (32) :6779-6784

[4] Modulation coding for pixel-matched holographic data storage [J].

Burr, GW ;

Ashley, J ;

Coufal, H ;

Grygier, RK ;

Hoffnagle, JA ;

Jefferson, CM ;

Marcus, B .

OPTICS LETTERS, 1997, 22 (09) :639-641

[5] Crystallization-resistant photorefractive polymer composite with high diffraction efficiency and reproducibility [J].

Cox, AM ;

Blackburn, RD ;

West, DP ;

King, TA ;

Wade, FA ;

Leigh, DA .

APPLIED PHYSICS LETTERS, 1996, 68 (20) :2801-2803

[6] Future trends in hard disk drives [J].

Grochowski, Edward ;

Hoyt, Roger F. .

IEEE Transactions on Magnetics, 1996, 32 (3 /2) :1850-1854

[7] Spectroscopic determination of trap density in C60-sensitized photorefractive polymers [J].

Grunnet-Jepsen, A ;

Wright, D ;

Smith, B ;

Bratcher, MS ;

DeClue, MS ;

Siegel, JS ;

Moerner, WE .

CHEMICAL PHYSICS LETTERS, 1998, 291 (5-6) :553-561

[8] OPTICAL MEMORIES IMPLEMENTED WITH PHOTOREFRACTIVE MEDIA [J].

HESSELINK, L ;

BASHAW, MC .

OPTICAL AND QUANTUM ELECTRONICS, 1993, 25 (09) :S611-S661

[9] Investigations on the grating dynamics in a fast photorefractive guest-host polymer [J].

Hofmann, U ;

Schreiber, A ;

Haarer, D ;

Zilker, SJ ;

Bacher, A ;

Bradley, DDC ;

Redecker, M ;

Inbasekaran, M ;

Wu, WW ;

Woo, EP .

CHEMICAL PHYSICS LETTERS, 1999, 311 (1-2) :41-46

[10] VOLUME HOLOGRAPHIC MEMORY-SYSTEMS - TECHNIQUES AND ARCHITECTURES [J].

HONG, JH ;

MCMICHAEL, I ;

CHANG, TY ;

CHRISTIAN, W ;

PAEK, EG .

OPTICAL ENGINEERING, 1995, 34 (08) :2193-2203

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