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Efficient Two‐Photon Excited Amplified Spontaneous Emission from Organic Single Crystals
Author(s) -
Xia Hong,
Yang Jie,
Fang HongHua,
Chen QiDai,
Wang HaiYu,
Yu XiaoQiang,
Ma YuGuang,
Jiang MinHua,
Sun HongBo
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000142
Subject(s) - photon upconversion , excited state , fluorescence , crystal (programming language) , amplified spontaneous emission , relaxation (psychology) , absorption (acoustics) , photon , materials science , nonlinear optics , two photon excitation microscopy , optoelectronics , molecular physics , photochemistry , chemistry , atomic physics , optics , luminescence , physics , laser , psychology , social psychology , computer science , composite material , programming language
E , E ‐1, 4‐bis[4′‐( N , N ‐dibutylamino)styryl]‐2,5‐dimethoxy‐benzene (DBASDMB) organic crystals with high crystalline quality, large size and excellent optical properties are prepared. The linear and nonlinear properties in the crystal are comparatively studied. The relaxation dynamics pumped by two‐photon are very similar with that pumped by one‐photon. The crystal exhibits very strong two‐photon excited fluorescence and amplified spontaneous emission. Efficient two‐photon absorption, reasonably high fluorescent quantum efficiency, and high crystal quality together with stimulated emission make organic crystals ideal for the application in frequency upconversion and other optoelectronic fields.