Title :
Enhanced Band-Edge and Defect-Mode Effects of Laser Action in Chiral Liquid Crystals
Author :
Ozaki, Mitsunori ; Matsuhisa, Yuko ; Fujii, Akira ; Huang, Yi-Pai ; Zhou, Yangzhong ; Wu, Shin-Tson
Author_Institution :
Osaka Univ., Osaka
Abstract :
A two-photon confocal microscope lithography technique was used to fabricate nano-defect structure in the chiral helicoidal system and higher-order confinement structure based on the chiral liquid crystals. Tunable defect mode and laser actions on this nano-modulated chiral helix structure have been demonstrated.
Keywords :
chirality; cholesteric liquid crystals; liquid crystal devices; nanolithography; photonic crystals; solid lasers; two-photon processes; band-edge effect; chiral helicoidal system; chiral liquid crystals; lasing action; nanodefect structure; nanomodulated chiral helix structure; photonic crystals; tunable defect mode; twist defect mode; two-photon confocal microscope lithography; Laser excitation; Laser modes; Laser theory; Laser tuning; Liquid crystals; Optical films; Periodic structures; Photonic band gap; Photonic crystals; Time division multiplexing;
Conference_Titel :
IEEE/LEOS Summer Topical Meetings, 2007 Digest of the
Conference_Location :
Portland, OR
Print_ISBN :
1-4244-0926-8
Electronic_ISBN :
1099-4742
DOI :
10.1109/LEOSST.2007.4288402
