Controllable Liquid Crystal Micro Tube Laser

Crystals

卷:11

Ting-Shan Mo¹  Jia-De Lin²  Chia-Rong Lee³  Po-Chen Wu³  Bing-Yau Huang⁴  Chie-Tong Kuo⁴ 

[1] Department of Materials Engineering, Kun Shan University of Technology, Tainan 710303, Taiwan;

[2] Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien 97401, Taiwan;

[3] Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan;

[4] Department of Physics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;

关键词: lasers;    liquid crystals;    azobenzene;    random lasers;   

DOI  :  10.3390/cryst11121510

来源: DOAJ

【 摘 要 】

This study demonstrates controllable random lasing emissions in a dye-doped nematic liquid crystal (DDNLC)-infiltrated microcapillary. The emission wavelength of the micro tube laser can be adjusted by changing the focusing position of the pumped pulses on the center or the periphery of the liquid crystal region of the microcapillary. In addition, with doping azo-dyes in the DDNLC of the micro tube laser, optical controllability of the lasing intensity and wavelength can be further achieved. The controllable micro tube laser may find highly widespread photonic applications in multicolor emitting sources, and vibration and UV sensors.

【 授权许可】

Unknown