Temporal and spectral properties of picosecond two-photon pumped cavity lasing of an organic dye HEASPS |
| |
| Authors: | G Zhou D Wang Y Ren S Yang X Xu Z Shao X Cheng X Zhao Q Fang M Jiang |
| |
| Institution: | (1) State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250 100, P.R. China, CN |
| |
| Abstract: | The operation of cavity lasing of a two-photon absorption (TPA) organic dye, trans-4-p-(N-hydroxyethyl-N-ethylamino)styryl]-N-methylpyridinium
p-toluene sulfonate (abbreviated as HEASPS), by using a picosecond infrared laser as the pump source, is reported. The lifetimes
of TPA fluorescence of this dye in different solvents were measured. Temporal profiles of cavity lasing show obvious oscillations
and magnification of the feedback light. By using the difference of re-absorption coefficients at different conditions, we
explained the blue shift for cavity lasing and superradiance compared with TPA-induced fluorescence. The long lifetime of
fluorescence is helpful to the generation of cavity lasing.
Received: 18 June 2001 / Revised version: 5 November 2001 / Published online: 17 January 2002 |
| |
| Keywords: | PACS: 78 20 Ek 42 66Ky 42 65 Re 78 47 +p |
| 本文献已被 SpringerLink 等数据库收录！ |
|
