Chinese Journal of Lasers, Volume. 38, Issue 5, 506001(2011)
Amplified Spontaneous Emission of Fluorescent Dye-Doped DNA-CTMA Thin Films
The fluorescent dye Rhodamine-6G (Rh6G) and Rhodamine-B (RhB) doped DNA-CTMA thin films are prepared by spin-coating technology. The quality and optical spectra properties of Rh6G/RhB/DNA-CTMA thin films are characterized by the measurements of surface morphology, UV/vis/infrared absorption spectra and fluorescence spectra. The amplified spontaneous emission (ASE) of dye-doped DNA-CTMA thin films with different dye contents was researched experimentally by pumping of NdYAG pulse laser at wavelength of 532 nm, and is explained theoretically. The experimental results show that the narrowing phenomenon of emission spectra of Rh6G/RhB/DNA-CTMA thin films is very clear and strong. Compared with single dye doped DNA-CTMA thin films, the co-doped Rh6G/RhB/DNA-CTMA thin film is a potential candidate as an organic polymer laser material because it exhibits more wider tuning range of the ASE spectrum.
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Ding Haifang, Zhang Feiyan, Lin Hao, Zhou Jun, Tan Ruiqin, Wang Nengping. Amplified Spontaneous Emission of Fluorescent Dye-Doped DNA-CTMA Thin Films[J]. Chinese Journal of Lasers, 2011, 38(5): 506001
Category: materials and thin films
Received: Dec. 29, 2010
Accepted: --
Published Online: May. 9, 2011
The Author Email: Haifang Ding (dinghaifang@yahoo.com.cn)