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    • 3. 发明申请
    • MULTIDIRECTIONAL PHOTOREACTIVE ABSORPTION METHOD
    • 多方向光电吸收法
    • WO0196959A3
    • 2002-05-02
    • PCT/US0119124
    • 2001-06-14
    • 3M INNOVATIVE PROPERTIES COFLEMING PATRICK RDEVOE ROBERT JLEATHERDALE CATHERINE ABALLEN TODD AFLORCZAK JEFFREY M
    • FLEMING PATRICK RDEVOE ROBERT JLEATHERDALE CATHERINE ABALLEN TODD AFLORCZAK JEFFREY M
    • G03F7/004G03F7/028G03F7/20H01S3/00
    • G11C7/00B33Y30/00G03F7/2051
    • A method for enhancing photoreactive absorption in a specified volume element of a photoreactive composition. In one embodiment, the method includes: providing a photoreactive composition; providing a source of light (preferably, a pulsed laser) sufficient for simultaneous absorption of at least two photons by the photoreactive composition, the light source having a beam capable of being divided; dividing the light beam into a plurality of equal path length exposure beams; and focusing the exposure beams in a substantially non-counter propagating manner at a single volume element of the photoreactive composition simultaneously to react at least a portion of the photoreactive composition. In another embodiment, a method includes: providing a photoreactive composition capable of photoreactive absorption; and exposing the photoreactive composition to laser light from a plurality of substantially non-counter propagating directions simultaneously, wherein the light overlaps in time and space at a predetermined focus spot.
    • 一种用于增强光反应性组合物的特定体积元素中的光反应性吸收的方法。 在一个实施方案中,该方法包括:提供光反应性组合物; 提供足以使光反应性组合物同时吸收至少两个光子的光源(优选地,脉冲激光器),所述光源具有能够被分割的光束; 将光束分成多个相等路径长度的曝光光束; 并且将曝光光束以基本上非反向传播的方式聚焦在光反应性组合物的单一体积元件上同时反应至少一部分光反应性组合物。 在另一个实施方案中,一种方法包括:提供能够进行光反应吸收的光反应性组合物; 并且将光反应性组合物同时从多个基本上非反向传播方向的激光曝光,其中在预定焦点处的光在时间和空间上重叠。