Photopolymer-filled nanoporous glass as a dimensionally stable holographic recording medium

Schnoes, Melinda; Dhar, Lisa; Schilling, M. L.; Patel, Sanjay; Wiltzius, Pierre

doi:10.1364/ol.24.000658

Cited by 56 publications

(31 citation statements)

References 7 publications

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“…Intense research effort has sought to address this fundamental issue, and a number of systems have been proposed, such as solgel, [19][20][21] organic-inorganic, [22,23] and nanoparticle-based systems. [24,25] However, the two major systems that are of current commercial interest, are the two-chemistry free radical polymerization materials (InPhase Technologies) [17,18] and cationic ringopening polymerization media (Aprilis/Dow).…”

Section: Introductionmentioning

confidence: 99%

Low‐Distortion Holographic Data Storage Media Using Free‐Radical Ring‐Opening Polymerization

Choi

Chon

et al. 2009

Adv Funct Materials

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Holographic data storage, due to its potential to increase capacity beyond one terabyte per disk, is tipped to be one of the next generation optical data storage technologies. Polymer‐based systems are leading candidates due to their high dynamic range, high sensitivities, and flexible and easy production, and yet polymerization‐shrinkage‐induced distortion is a major hurdle for its reliable use. In this paper, a new free radical polymerization holographic recording medium, based on low shrink cyclic allylic sulfides (LS‐CASs) ring‐opening monomers, is proposed and demonstrated. The percentage of volume shrinkage is measured to be 0.02%, with refractive index (RI) contrast of (1.01 ± 0.5) × 10−3. The measured volume shrinkage is, to the authors' best knowledge, the best reported so far in the literature. Other parameters such as sensitivity, dynamic range, and dark reaction properties are also measured, where the values can be optimized with high RI functional groups without sacrificing the low shrinkage.

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Section: Introductionmentioning

confidence: 99%

Low‐Distortion Holographic Data Storage Media Using Free‐Radical Ring‐Opening Polymerization

Choi

Chon

et al. 2009

Adv Funct Materials

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“…Giunta et al (11) infused Vycor with polyacrylonitrile in order to convert the glass-polymer composite to a carbon-silica composite through pyrolysis. Sotomayor et al (12) used polyanaline-infused Vycor to produce a pH sensor, and Schnoes et al (13) used polymerfilled Vycor as a holographic recording medium.…”

Section: Introductionmentioning

confidence: 99%

Transparent Nanoporous Glass-Polymer Composite for U.S. Army Applications

O’Brien¹,

Juliano²,

Patel³

et al. 2008

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Approved for public release; distribution is unlimited.ii REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)October 2008 ARL-TR-4631 SPONSOR/MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES ABSTRACTThis report explores the manufacturing of a novel transparent polymer-glass composite. The material is created by infiltrating nanoporous glass (Vycor, Corning Inc.) with different polymers. The Vycor pores (4-6 nm) are much smaller than the wavelength of light; thus, refractive index matching with the polymer is not necessary for transparency. Close to 90% of the pore volume can be filled by soaking the porous glass in methyl methacrylate and polymerizing in situ. The resulting composite is 95% transparent with excellent clarity, extremely low haze, and an elastic modulus that is well predicted by micromechanics.

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“…The refractive index modulation amplitude Dn and the effective thickness of the grating (t eff ) were calculated from the diffraction efficiency and the angular selectivity curve using Kogelnik's coupled wave theory. [13] The photosensitivity [14] was calculated as the ratio between the square root of the diffraction efficiency and the product of the exposure (E) and the interference fringe visibility (v):…”

mentioning

confidence: 99%

A Volume Holographic Sol‐Gel Material with Large Enhancement of Dynamic Range by Incorporation of High Refractive Index Species

et al. 2006

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Photopolymer-filled nanoporous glass as a dimensionally stable holographic recording medium

Cited by 56 publications

References 7 publications

Low‐Distortion Holographic Data Storage Media Using Free‐Radical Ring‐Opening Polymerization

Low‐Distortion Holographic Data Storage Media Using Free‐Radical Ring‐Opening Polymerization

Transparent Nanoporous Glass-Polymer Composite for U.S. Army Applications

A Volume Holographic Sol‐Gel Material with Large Enhancement of Dynamic Range by Incorporation of High Refractive Index Species

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