Amplified spontaneous emission in the spiropyran-biopolymer based system

Amplified spontaneous emission (ASE) phenomenon in the 6-nitro- 1 ′ , 3 ′ , 3 ′ -trimethylspiro[2H-1-benzopyran- 2 , 2 ′ -indolin] organic dye dispersed in a solid matrix has been observed. The biopolymer system deoxyribonucleic acid blended with cationic surfactant molecule cetyltrimethyl-ammonium...

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Bibliographic Details
Published in:Applied physics letters 2009-06, Vol.94 (24), p.241106-241106-3
Main Authors: Mysliwiec, Jaroslaw, Sznitko, Lech, Bartkiewicz, Stanislaw, Miniewicz, Andrzej, Essaidi, Zacaria, Kajzar, Francois, Sahraoui, Bouchta
Format: Article
Language:English
Subjects:
Physics
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Summary:Amplified spontaneous emission (ASE) phenomenon in the 6-nitro- 1 ′ , 3 ′ , 3 ′ -trimethylspiro[2H-1-benzopyran- 2 , 2 ′ -indolin] organic dye dispersed in a solid matrix has been observed. The biopolymer system deoxyribonucleic acid blended with cationic surfactant molecule cetyltrimethyl-ammonium chloride served as a matrix. ASE appeared under sample excitation by UV light pulses ( λ = 355   nm ) coming from nanosecond or picosecond neodymium doped yttrium aluminum garnet lasers and has been reinforced with green ( λ = 532   nm ) light excitation followed UV light pulse. The ASE characteristics in function of different excitation pulse energies as well as signal gain were measured.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3155203