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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 3 — Mar. 6, 2014

Optical performance of mesostructured composite silica film loaded with organic dye

Mina Guli, Shijian Chen, Dingke Zhang, Xiaotian Li, Jianxi Yao, Lei Chen, and Li Xiao  »View Author Affiliations


Applied Optics, Vol. 53, Issue 2, pp. 291-295 (2014)
http://dx.doi.org/10.1364/AO.53.000291


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Abstract

A mesoporous composite silica film loaded with organic dye has been successfully synthesized by a solgel reaction process and a simple postgrafting method at room temperature. The composite film was characterized by x-ray diffraction, transmission electron microscopy, UV–Vis, photoluminescence (PL) spectra, and laser performance, and the results confirmed the existence of dyes in the channels of the silica film. A blue-shift and fluorescence property in the PL spectrum was observed from the composite film compared with that of dye molecules in C2H5OH solution. The spectrum narrowing phenomena has been observed when the composite film is pumped at λp=355nm by a Nd:YAG pulsed laser. A narrower, higher peak was observed in emission spectra from the mesostructured composite silica film compared with the PL spectrum of dye in C2H5OH solution. There is a substantial reduction in the full width at half-maximum of the emitting light, which results in peaks with linewidths of 26 nm or more. This collapse of the emission spectrum is one of the signatures of the presence of amplified spontaneous emission.

© 2014 Optical Society of America

OCIS Codes
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.3660) Medical optics and biotechnology : Light propagation in tissues

ToC Category:
Materials

History
Original Manuscript: September 4, 2013
Revised Manuscript: November 24, 2013
Manuscript Accepted: December 10, 2013
Published: January 10, 2014

Virtual Issues
Vol. 9, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Mina Guli, Shijian Chen, Dingke Zhang, Xiaotian Li, Jianxi Yao, Lei Chen, and Li Xiao, "Optical performance of mesostructured composite silica film loaded with organic dye," Appl. Opt. 53, 291-295 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-53-2-291

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