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Proceedings Paper

Light amplification and photo-isomerization characteristics of laser dyes and azo molecules incorporated into DNA-complex systems
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Paper Abstract

With an aim to fabricate wavelength tunable thin laser films, monolithic DNA complex layers including azo and laser dyes were prepared. Azo dyes, DO3 and DR1, were incorporated into the complex layer as guests dispersed in the host. A laser dye, Rhodamine 6G was added to the DO3 doped film by immersion method, demonstrating amplified spontaneous emission (ASE) from the single layered film under the excitation at 532nm. Threshold energy density was determined to be 2mJ/cm2 which was the twice of the counterpart without DO3. It was also found that photo-response of the azos in DNA complex was very weak via experiments of photoinduced birefringence and photoinduced transparency. Instead, a blend of the complex and a PMMA based copolymer with DR1 side chain showed strong photo-isomerization response, which will be applicable to dye doping for laser action.

Paper Details

Date Published: 8 October 2018
PDF: 6 pages
Proc. SPIE 10801, Optical Materials and Biomaterials in Security and Defence Systems Technology XV, 1080106 (8 October 2018); doi: 10.1117/12.2325290
Show Author Affiliations
Yutaka Kawabe, Chitose Institute of Science and Technology (Japan)
Kento Okoshi, Chitose Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 10801:
Optical Materials and Biomaterials in Security and Defence Systems Technology XV
Roberto Zamboni; François Kajzar; Attila A. Szep; Katarzyna Matczyszyn, Editor(s)

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