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Proceedings Paper

Tunable DFB lasers based on DNA-surfactant-dye complexes
Author(s): Toshifumi Chida; Yutaka Kawabe
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Paper Abstract

We succeeded to observe fluorescence enhancement and tunable laser emission from spin coated films of DNAcetyltrimetylammonium (CTMA) complex doped with weakly fluorescent cyanine dyes, DiQC2(1) and DiQC2(3) which were optically excited by interfering two beams forming a induced dynamic grating. Wavelength tuning of the laser emission was achieved by varying the angle between the pumping beams determining the grating period on the film. Degradation processes of the dye-doped films of DNA complex and PMMA were investigated and compared by monitoring absorption spectra after continuous excitation with a pulsed laser. Roles of DNA for fluorescence enhancement and improved durability were confirmed for these cyanine dyes.

Paper Details

Date Published: 15 October 2012
PDF: 8 pages
Proc. SPIE 8464, Nanobiosystems: Processing, Characterization, and Applications V, 84640E (15 October 2012); doi: 10.1117/12.928551
Show Author Affiliations
Toshifumi Chida, Chitose Institute of Science and Technology (Japan)
Yutaka Kawabe, Chitose Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 8464:
Nanobiosystems: Processing, Characterization, and Applications V
Norihisa Kobayashi; Fahima Ouchen; Ileana Rau, Editor(s)

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