Narrowed spectra at 452 nm from a thin platelike crystal of distyrylbenzene derivative, 2,5-diphenyl-1,4-distyrylbenzene with two trans double bonds (trans-DPDSB) grown by vapor deposition, are observed. The trans-DPDSB crystal is irradiated by the third harmonic (355 nm) of a Nd:YAG laser. The FWHM of the narrowed spectra can reach 6 nm for the crystal when the pumping energy is 400 μJ/pulse. The threshold value for an optically pumped laser is approximately 350 μJ/pulse.
© 2007 Optical Society of America
Original Manuscript: December 4, 2006
Revised Manuscript: March 21, 2007
Manuscript Accepted: March 21, 2007
Published: June 20, 2007
Weijie Xie, Feng Li, Huan Wang, Zengqi Xie, Fangzhong Shen, Yuguang Ma, Wu Lu, Dingke Zhang, and Dongge Ma, "Stimulated emission from distyrylbenzene derivative crystals grown by vapor deposition," Appl. Opt. 46, 4431-4433 (2007)