Lasers, Fiber Optics, and Communications

Amplified spontaneous emission from 2,7-bis(4-pyridyl)fluorene-doped DNA-cetyltrimethyl ammonium complex films

[+] Author Affiliations
Xiuhua Zhao

Ningbo University, Faculty of Science, Ningbo, Zhejiang 315211, China

Xing Li

Ningbo University, Faculty of Materials Science and Chemical Engineering, Ningbo, Zhejiang 315211, China

Yayun Zhao

Ningbo University, Faculty of Materials Science and Chemical Engineering, Ningbo, Zhejiang 315211, China

Jie Zhang

Ningbo University, Faculty of Materials Science and Chemical Engineering, Ningbo, Zhejiang 315211, China

Jianguo Pan

Ningbo University, Faculty of Materials Science and Chemical Engineering, Ningbo, Zhejiang 315211, China

Jun Zhou

Ningbo University, Faculty of Science, Ningbo, Zhejiang 315211, China

Opt. Eng. 52(10), 106109 (Oct 28, 2013). doi:10.1117/1.OE.52.10.106109
History: Received August 9, 2013; Revised September 26, 2013; Accepted October 3, 2013
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Abstract.  The 2,7-bis(4-pyridyl)fluorene (BPF) was synthesized via a Suzuki coupling reaction. The optical spectra properties of BPF and BPF-deoxyribonucleic acid (DNA)-cetyltrimethyl ammonium (CTMA) thin films composed of BPF, DNA, and CTMA were characterized by the measurements of UV/Vis absorption spectra and fluorescence spectra. The amplified spontaneous emission (ASE) of the BPF-DNA-CTMA films was researched experimentally by pumping of a pulse laser with a wavelength of 355 nm. The results show that the absorption peak and the fluorescence peak of BPF are located at 327 and 380 nm, respectively. The emission peak of BPF corresponds to the vibronic transitions from an excited state of S1 level to the ground state of S0 level. The ASE peak of the BPF-DNA-CTMA film is located at 384 nm, and the threshold of ASE excited energy density is 3.12mJ·cm2.

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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Xiuhua Zhao ; Xing Li ; Yayun Zhao ; Jie Zhang ; Jianguo Pan, et al.
"Amplified spontaneous emission from 2,7-bis(4-pyridyl)fluorene-doped DNA-cetyltrimethyl ammonium complex films", Opt. Eng. 52(10), 106109 (Oct 28, 2013). ; http://dx.doi.org/10.1117/1.OE.52.10.106109


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