Light controllable tuning and switching of lasing in chiral liquid crystals
β Scribed by Shibaev, Peter V.; Sanford, R. Lea; Chiappetta, Daniel; Milner, Valery; Genack, Azriel; Bobrovsky, Alexei
- Book ID
- 115404879
- Publisher
- Optical Society of America
- Year
- 2005
- Tongue
- English
- Weight
- 127 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1094-4087
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π SIMILAR VOLUMES
**Tuning of a dyeβdoped cholesteric liquid crystal mirrorless laser** in the violetβ ultraviolet wavelength range is achieved using two different strategies for controlling the periodicity of the cholesteric helical structures. Both methods are shown produce a shift of the lasing wavelength by 30β40
## Abstract In this paper, we present the results of our investigations on the lasing in dye doped chiral liquid crystals with structural defects. The introduction of structural defects (TiO~2~ microbeads) into cholesterics results in multimode laser generation and increasing the threshold energy.