Abstract

Optically pumped light emissions in imperfectly aligned dye-doped cholesteric cells with glance and frosted glass substrates of three different cell gap thicknesses are experimentally studied. Alignment imperfections show up in emission spectra by a broadening of the photonic bandgap (PhBG) lasing (allowed) lines at short- and long-wavelength PhBG edges and by an additional (forbidden) emission line inside the PhBG. Forbidden and allowed lines differ distinctively by their stability in the course of pumping. The origin of the forbidden line is discussed.

© 2015 Optical Society of America

Electrically controllable multicolor cholesteric laser

Lotfi Saadaoui, Gia Petriashvili, M. P. De Santo, Ridha Hamdi, Tahar Othman, and Riccardo Barberi
Opt. Express 23(17) 22922-22927 (2015)

Ultraviolet lasing in cholesteric liquid crystals

A. Muñoz F., P. Palffy-Muhoray, and B. Taheri
Opt. Lett. 26(11) 804-806 (2001)

Lasing properties of a cholesteric liquid crystal containing aggregation-induced-emission material

Nan Wang, Julian S. Evans, Ju Mei, Jianhao Zhang, Iam-Choon Khoo, and Sailing He
Opt. Express 23(26) 33938-33946 (2015)

Performance evolution of color cone lasing emissions in dye-doped cholesteric liquid crystals at different fabrication conditions

Chia-Rong Lee, Jia-De Lin, Ting-Shan Mo, Chi-Ting Horng, Han-Ying Sun, and Shuan-Yu Huang
Opt. Express 23(8) 10168-10180 (2015)

Color changing and lasing stretchable cholesteric films

Petr V. Shibaev, Pierre Rivera, Dashiell Teter, Salvatore Marsico, Martin Sanzari, Veena Ramakrishnan, and Eckhard Hanelt
Opt. Express 16(5) 2965-2970 (2008)