Title :
Fabrication of switchable microlens arrays based on a liquid crystal
Author :
Choi, Yoonseuk ; Park, Jae-Hong ; Kim, Jae-Hoon ; Lee, Sin-Doo
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
In this work, we report on a novel method of fabricating liquid crystal (LC) microlens arrays using a LC layer on a surface relief structure of the UV curable polymer. This surface structure can be easily obtained, compared to the conventional method, for example, a photolithographic process or an ion-beam etching. It is noted that the large birefringence of the LC being used makes it possible to achieve a wide range of the switching characteristics of the microlens
Keywords :
liquid crystal devices; microlenses; nematic liquid crystals; optical arrays; optical fabrication; spin coating; ultraviolet radiation effects; NLC; UV curable polymer; homogeneously aligned; intensity modulation; large birefringence; liquid crystal layer; photomask; spin-coated; surface relief structure; switchable microlens arrays; wide switching characteristics range; Fabrication; Lenses; Liquid crystals; Microoptics; Optical devices; Optical interconnections; Optical modulation; Optical polymers; Refractive index; Voltage;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968967
