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    Recording medium and process for forming medium
    1.
    发明公开
    Recording medium and process for forming medium 有权
    Aufzeichnungsmaterial und Verfahren zu seiner Herstellung

    公开(公告)号：EP1026546A1

    公开(公告)日：2000-08-09

    申请号：EP99309584.3

    申请日：1999-11-30

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Chandross, Edwin Arthur ,  Dhar, Lisa ,  Galvin-Donoghue, Mary Ellen ,  Lowe-Harris, Alexander ,  Patel, Sanjay ,  Schilling, Marcia Lea ,  Schnoes, Melinda Lamont ,  Wiltzius, Pierre

    IPC: G03F7/00 ,  G03H1/02

    CPC classification number: G03H1/02 ,  G03F7/001 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2270/53

    Abstract: An improved recording medium is provided having a rigid porous matrix containing a photoimageable system. In contrast to previous media containing porous matrices, the invention allows readable holograms to be written in a medium without the need for solvent processing steps subsequent to irradiation. Due to the rigid nature of the matrix, polymerization and/or diffusion during formation of each individual hologram induces only a small level of Bragg detuning. Temperature fluctuations similarly induce only a small Bragg shift. Improved archival life of recorded holograms and improved fidelity of read-out, as well as improved optical elements, are thereby attained. And the avoidance of solvent processing makes the process of recording holograms far easier than in previous porous matrix-based media.

    Abstract translation: 提供了一种改进的记录介质，其具有含有可光成像系统的刚性多孔基体。 与含有多孔基质的以前的介质相比，本发明允许将可读全息图写在介质中，而不需要在照射之后的溶剂处理步骤。 由于基体的刚性，每个单独的全息图的形成过程中的聚合和/或扩散只会引起很少量的布拉格失谐。 温度波动类似地仅引起小的布拉格移位。 从而获得了记录的全息图的改进的存档寿命和读出的改进的保真度以及改进的光学元件。 并且避免溶剂处理使记录全息图的过程比以前的基于多孔基质的介质更容易。

    Material exhibiting compensation for polymerization-induced shrinkage and recording medium formed therefrom
    2.
    发明公开
    Material exhibiting compensation for polymerization-induced shrinkage and recording medium formed therefrom 有权
    物质化学物质聚合物聚合物和化学药剂Aufzeichnungsmedium

    公开(公告)号：EP0969323A1

    公开(公告)日：2000-01-05

    申请号：EP99304910.5

    申请日：1999-06-23

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Dhar, Lisa ,  Katz, Howard Edan

    IPC: G03F7/00

    CPC classification number: G03H1/0256 ,  G03F7/001 ,  G03H1/02 ,  G03H2001/0264 ,  G03H2001/186 ,  G03H2250/44

    Abstract: The invention relates to use of a material containing a polymerizable monomer or oligomer, the material exhibiting desirable shrinkage compensation upon polymerization. The material contains an expansion agent having a cleaving moiety with the capacity to be cleaved or fragmented by a catalytic reaction, e.g., acid catalysis. The cleavage, by increasing the number of molecules in the material, causes expansion that compensates, at least in part, for shrinkage induced by polymerization of the monomer or oligomer. The expansion agent is capable of providing compensation such that no more than 0.4%, advantageously no more than 0.2 %, volume shrinkage per molar concentration of polymerized monomer functional groups occurs, where such compensation is performed at relatively low temperatures of less than 40°C.

    Abstract translation: 本发明涉及含有可聚合单体或低聚物的材料的用途，该材料在聚合时表现出理想的收缩补偿。 该材料含有具有裂解部分的膨胀剂，其具有通过催化反应例如酸催化裂解或断裂的能力。 通过增加材料中的分子数来进行裂解，导致膨胀，至少部分地补偿由单体或低聚物的聚合引起的收缩。 膨胀剂能够提供补偿，使得发生每摩尔浓度的聚合单体官能团的体积收缩率不超过0.4％，有利地不超过0.2％，其中在相对低于40℃的较低温度下进行这种补偿 。

    Optical article and process for forming article
    3.
    发明公开
    Optical article and process for forming article 有权
    Verfahren zur herstellung eines optischen Elements

    公开(公告)号：EP0945762A1

    公开(公告)日：1999-09-29

    申请号：EP99302010.6

    申请日：1999-03-16

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： Dhar, Lisa ,  Hale, Arturo ,  Katz, Howard Edan ,  Schilling, Marcia Lea ,  Schnoes, Melinda Lamont

    IPC: G03F7/00 ,  G03H1/02 ,  G03F7/20

    CPC classification number: G03F7/001 ,  G03F7/032 ,  G03F7/035

    Abstract: The optical article of the invention, e.g., holographic recording medium or polymeric waveguide, is formed by mixing a matrix precursor and a photoactive monomer, and curing the mixture to form the matrix in situ. The reaction by which the matrix precursor is polymerized during the cure is independent from the reaction by which the photoactive monomer is polymerized during writing of data. In addition, the matrix polymer and the polymer resulting from polymerization of the photoactive monomer are compatible with each other. Use of a matrix precursor and photoactive monomer that polymerize by independent reactions substantially prevents cross-reaction between the photoactive monomer and the matrix precursor during the cure and inhibition of subsequent monomer polymerization. Use of a matrix precursor and photoactive monomer that result in compatible polymers substantially avoids phase separation. And in situ formation allows fabrication of articles with desirable thicknesses.

    Abstract translation: 本发明的光学制品，例如全息记录介质或聚合物波导，通过混合基体前体和光活性单体，并固化混合物以原位形成基质而形成。 在固化期间使基质前体聚合的反应与数据写入期间光活性单体聚合的反应无关。 此外，基体聚合物和由光活性单体的聚合产生的聚合物彼此相容。 通过独立反应聚合的基质前体和光活性单体的使用基本上防止了光敏单体和基质前体在固化和抑制随后的单体聚合过程中的交叉反应。 使用导致相容的聚合物的基质前体和光活性单体基本避免相分离。 并且原位形成允许制造具有期望厚度的制品。

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