Title :
Low-threshold deep-blue organic thin-film distributed feedback laser
Author :
Cheng, Hsing-Chieh ; Lin, Hao-Wu ; Wu, Chung-Chih ; Wong, Ken-Tsung ; Kuan, Chieh-Hsiung
Author_Institution :
Nat. Taiwan Univ., Taipei
Abstract :
A low-threshold distributed feedback organic solid-state laser based on terfluorene and pumped by a pulsed Nd:YAG laser is reported. The second-order DFB grating with a period of 280 nm or 300 nm is realized by electron-beam lithography of the e-beam resist. Observations show lasing action occurring at 423 nm and 448 nm above the threshold with emission wavelength in the deep blue region.
Keywords :
diffraction gratings; distributed feedback lasers; electron resists; optical pumping; organic compounds; solid lasers; thin films; e-beam resist; electron-beam lithography; lasing action; low-threshold deep-blue laser; organic solid-state lasers; organic thin-film distributed feedback laser; pulsed Nd:YAG laser; second-order DFB grating; terfluorene; Distributed feedback devices; Gratings; Laser excitation; Laser feedback; Lithography; Optical pulses; Pump lasers; Resists; Solid lasers; Transistors;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385895
