Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product – Composition or product or process of making the same
Reexamination Certificate
2004-10-04
2009-12-01
Angebranndt, Martin J (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
Composition or product or process of making the same
C430S001000, C430S280100, C430S945000, C359S003000, C359S035000
Reexamination Certificate
active
07625674
ABSTRACT:
The present invention includes systems and compositions of holographic grating structures devices and methods for fabricating such holographic grating structures. The method comprises the steps of preparing a composite mixture comprising a polymerizable matrix, a liquid crystal, and a photo-oxidant dye, producing an interference pattern from two interference beams, wherein the two interference beams originate from a recording laser beam directed by a low energy laser, and projecting the interference pattern on the composite mixture to form a holographic grating structure. As described, the holographic grating structure yields a first-order diffraction efficiency of at least about 30% diffraction efficiency which may be adjusted by the application of an electric field.
REFERENCES:
patent: 4066334 (1978-01-01), Fray et al.
patent: 4691045 (1987-09-01), Fukuchi et al.
patent: 4728547 (1988-03-01), Vaz et al.
patent: 5942157 (1999-08-01), Sutherland et al.
patent: 6398981 (2002-06-01), Galstian et al.
patent: 2001/0008168 (2001-07-01), Loza et al.
patent: 2003/0213550 (2003-11-01), Daems et al.
patent: 05-100211 (1993-04-01), None
patent: 10-319237 (1998-12-01), None
Product Bulletin: CN135 (sartomer, one page) available in the internet on May 5, 2003.
Sutherland et al. “development of phtopolymer-liquid crystal composite materials for dynamic hologram applications”, Proc. SPIE 2152 pp. 303-313 (1994).
Jenney, “Holographic recording with photopolymers”, JOSA vol. 60(9) pp. 1155-1161 (Sep. 1970).
Zhao et al. “Novel type of red sensitive photo-polymer system for optical storage”, Proc. SPEI vol. 3468 pp. 317-321 (Jul. 1998).
Close et al. “Hologram recording on photopolymer materials”, Appl. Phys. Lett., vol. 14(5) pp. 159-160 (Mar. 1969).
Sartomer product information—Application Bulletin, (9 pages, Jul. 2006).
Margerum et al. “photopolymerization Mechanisms. I . . . ”, J. Phys. Chem., vol. 75(20) pp. 3066-3074 (1971).
Margerum et al. “photopolymerization Mechanisms. I . . . ”, J. Phys. Chem., vol. 77(23) pp. 2720-2725 (1973).
Bunning et al., “Morphology of anisotropic polymer dispersed liquid crystals and the effect of monomer functionality”, J. poly. Sci., Pt. B., vol. 35 pp. 2825-2833 (1997).
Robert A. Ramsey, et al, Switchable holographic gratings formed in polymer-dispersed liquid-crystal cells by use of a He-Ne laser, Optics Letters, vol. 30, pp. 594, No. 6, Mar. 15, 2005.
Mojca Jazbinsek, et al, Characterization of holographic polymer dispersed liquid crystal transmission gratings, Journal of Applied Physics, vol. 90, No. 8, pp. 3831-3837, Oct. 15, 2001.
Andy Y.-G. Fuh, et al, Electrically Switchable spatial filter based on polymer-dispersed liquid crystal film, Journal of Applied Physics, vol. 96, No. 10, pp. 5402-5404, Nov. 15, 2004.
A Mazzulla, P. Pagliusi, et al, Surface relief gratings on polymer dispersed liquid crystals by polarization holography, Applied Physics Letters, vol. 85, No. 13, pp. 2505-2507, Sep. 27, 2004.
D.E. Lucchetta, et al, Liqht amplification by dye-doped holographic polymer dispersed liquid crystals, Applied Physics Letters, vol. 84, No. 24, pp. 4893-4895, Jun. 14, 2004.
D. Cupelli, et al, Fine adjustment of conductivity in polymer-dispersed liquid crystals, Applied Physics Letters, vol. 85, No. 15, pp. 3292-3294, Oct. 11, 2004.
Yi-Hsin Lin, et al, High contrast polymer-dispersed liquid crystal in a 90° twisted cell, Applied Physics Letters, vol. 84, No. 20, pp. 4083-4085, May 17, 2004.
V.P. Dick, et al, Optical phase shift by polymer dispersed liquid crystal films with fine droplets, Journal of Physics D: Applied Physics, 37 (2004) 1834-1840, Jun. 16, 2004.
Praveen Malik, et al, Droplet orientation and optical properties of polymer dispersed liquid crystal composite films, Optical Materials 27 (2004) 613-617.
Jun Qi, et al, Holographically formed polymer dispersed liquid crystal displays, www.sciencedirect.com, Displays xx (2004) 1-10.
J. Klosterman, et al, The influence of surfactant in reflective HPDLC gratings, www.wciencedirect.com, Polymer 45 (2004) 7213-7218.
Scott A. Holmstrom, et al, Mechanical tuning of holographic polymer-dispersed liquid crystal reflection gratings, Allied Physics Letters, vol. 85, No. 11, pp. 1949-1951, Sep. 13, 2004.
D.E. Lucchetta, et al, Optical characterization of polymer dispersed liquid crystals for holographic recording, Journal of Applied Physics, vol. 93, No. 12, pp. 9669-9674, Jun. 15, 2003.
Guang S. He, a), et al, Tunable two-photon pumped lasing using a holographic polymer-dispersed liquid-crystal grating as a distributed feedback element.
R.M. Henry, et al, Effects of Crosslinking Agent, Cure Temperature, and UV Flux on the Electro-optical Properties of Polymer-Dispersed Liquid Crystal Cells, Journal of Polymer Science: Part B: Polymer Physics, vol. 42, pp. 404-410, (2004).
Karolina P. Fritz, et al, Alignment of Conjugated Polymers in a Nematic Liquid-Crystal Host, J. Phys., Chem. B 2003, 107, pp. 10141-10147, Aug. 23, 2003.
Lalgudi V. Natarajan, et al, Switchable Holographic Polymer-Dispersed Liquid Crystal Reflection Gratings Based on Thiol-Ene Photopolymerization, Chem. Mater. 2003, 15, pp. 2477-2484, May 21, 2003.
Richard L. Sutherland, et al, Polarization and switching properties of holographic polymer-dispersed liquid-crystal gratings, II. Experimental investigations, J. Opt. Soc. Am. B/vol. 19, No. 12, pp. 3004-3012, Dec. 2002.
Jian Zhou, et al, Conrol of the Anchoring Behavior of Polymer-Dispersed Liquid Crystals: Effect of Branching in the Side Chains of Polyacrylates, J. Am. Chem. Soc. 2002, 124, pp. 9980-9981, Aug. 7, 2002.
Jeffrey G. Winiarz, et al, Photorefractive inorganic-organic polymner-dispersed liquid-crystal nanocomposite photosensitized with cadmium sulfide quantum dots, Optics Letters, vol. 27, No. 15, pp. 1330-1332, Aug. 1, 2002.
Hans T.A. Wilderbeek, et al, Photo-Initiated Polymerization of Liquid Crystalline Thiol-Ene Monomers in Isotropic and Anisotropic Solvents, J. Phys. Chem. B 2002, 106, pp. 12874-12883, Nov. 23, 2002.
Chris C. Bowley, Variable-wavelength switchable Bragg gratings formed in polymer-dispersed liquid crystals, Applies Physics Letters, vol. 79, No. 1, pp. 9-11, Jul. 2, 2001.
Wei Lee, Observation of self-diffraction by gratings in nematic liquid crystals doped with carbon nanotubes, Optics Letters, vol. 26, No. 8, pp. 521-523, Apr. 15, 2001.
R.L. Sutherland, Periodic Polymer-Dispersed Liquid Crystal Structures, Mol. Cryst. and Liq. Cryst., 2001, vol. 358, pp. 22-35.
T.J. Bunning, Holographic Polymer-Dispersed Liquid Crystals (H-PDLCs), Annu. Rev. Mater. Sci., 2000, 30:83-115.
C.C. Bowley, et al, Diffusion kinetics of formation of holographic polymer-dispersed liquid crystal display materials, Applied Physics Letter, vol. 76, No. 16, pp. 2235-2237, Apr. 17, 2000.
Patrick Pilot, et al, Near IR (800-855 nm) sensitive holographic photopolymer dispersed liquid crystal materials, SPIE, vol. 3635, pp. 143-150.
Richard L. Sutherland, Switchable Holograms for displays and other applications, Journal SPIE proc. 3421, pp. 8-18 (1998).
Nicholas Madamopoulos, et al, Polarization selective hologram-based photonic delay lines, Optics Communications 157 (1998) pp. 225-237.
L. Domash, et al, Electronically switchable Bragg gratings for large scale NXN fiber optic crossconnects, SPIE, vol. 3010, pp. 214-228, 1997.
Shiro Umeuchi, et al, Electric field effects on absorption and fluorescence spectra of pyrene doped in a PMMA polymer film, Thin Solid Films 311 (1997), pp. 239-245.
I.C. Khoo, Hologrphic grating formation in dye- and fullerene C60-doped nematic liquid-crystal film, Optics Letters, vol. 20, No. 20, Oct. 15, 1995.
L.V. Natarajan, et al, Holographic PDLCs for optical beam modulation, deflection, and dynamic filter applications, SPIE, Voo. 3292, pp. 44-51.
Bob L. Epling, et al, Switchable Holograms for Automotive Apploications, Science Applications International Corp., pp. 205-208.
Gregory P. Crawford, Reflective Liquid Crystal Displays: The Next Major Paradigm Shift i
Ramsey Robert A.
Sharma Suresh C.
Angebranndt Martin J
Board of Regents , The University of Texas System
Chalker Flores LLP
Flores Edwin S.
Singleton Chainey P.
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