发明授权
- 专利标题： Optical element and compounds used in its manufacture
- 专利标题（中）： 用于其制造的光学元件和化合物
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申请号： US799431申请日： 1997-02-12
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公开(公告)号： US6143208A公开(公告)日： 2000-11-07
- 发明人: Richard Buchecker , Xin Hua Chen , Jurg Fufschilling , Rolf-Peter Herr , Martin Schadt , Klaus Schmitt
- 申请人： Richard Buchecker , Xin Hua Chen , Jurg Fufschilling , Rolf-Peter Herr , Martin Schadt , Klaus Schmitt
- 申请人地址： CHX Basel
- 专利权人： Rolic AG
- 当前专利权人： Rolic AG
- 当前专利权人地址： CHX Basel
- 优先权： CHX1878/91 19910625; CHX65/92 19920110
- 主分类号： G02F1/35
- IPC分类号： G02F1/35 ; C07C229/34 ; C07C229/56 ; C07C229/64 ; C07D239/26 ; C08F12/26 ; C08F16/28 ; C08F18/22 ; C08F20/36 ; C09K3/00 ; G02F1/141 ; G02F1/355 ; G02F1/361 ; G02F1/37 ; G02F1/377 ; H01S3/109 ; F21V9/00 ; C07C69/76 ; C07C211/00
摘要：
An optical frequency conversion element has a wave-guiding layer which consists of a .chi..sup.(2) -active ferroelectric liquid crystal. The monomeric or polymeric liquid crystal material has a periodic structure which permits the so-called quasi phase matching of a guided laser beam. The period length of the structure is equal to twice the coherence length l.sub.c =.pi./.DELTA..beta. of the material, whereby .DELTA..beta.=.beta..sub.o (2.omega.)-2.beta..sub.o (.omega.), with .omega.=angular frequency of the fundamental wave, 0=zero-order mode and .beta.=propagation constant of the mode.
公开/授权文献
- US5239352A Multiple scattering technique (MUST) lidar 公开/授权日：1993-08-24