Considering the practical applications of liquid-crystal microlasers, such as laser displays and opto-communication devices, broadband tunablity and continuous wave (cw) operation are strongly desired. Especially for the later one, nobody has succeeded yet. For the cw operation, two problems must be solved: (1) Development of new dyes which are stable against heat and light; (2) Development of novel cavities with high Q which makes the lasing threshold lower. Here in this paper, we will introduce our recent researches mainly aiming at reduction of the lasing threshold in liquid crystal microlasers; (1) single-output window devices; (2) multilayered devices; (3) use of a polymer dye improving order parameter; (4) a new laser dye specially designed for dye-doped CLC lasers.

Date Published: 14 February 2011
PDF: 7 pages
Proc. SPIE 7935, Organic Photonic Materials and Devices XIII, 79350A (14 February 2011); doi: 10.1117/12.881262

Published in SPIE Proceedings Vol. 7935:
Organic Photonic Materials and Devices XIII
Robert L. Nelson; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)