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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 13 — Dec. 2, 2009

Femtosecond laser fabrication of microfluidic channels for organic photonic devices

Krishna Chaitanya Vishnubhatla, Jenny Clark, Guglielmo Lanzani, Roberta Ramponi, Roberto Osellame, and Tersilla Virgili  »View Author Affiliations


Applied Optics, Vol. 48, Issue 31, pp. G114-G118 (2009)
http://dx.doi.org/10.1364/AO.48.00G114


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Abstract

We report on innovative application of microchannels with access holes fabricated by femtosecond laser irradiation followed by chemical etching. This technique allows us to demonstrate a novel approach to the achievement of organic photonic devices in which the properties of a conjugated polymer in solution are exploited in a microfluidic configuration to produce an easy-to-integrate photonic device. Filling the microchannel with a diluted polyfluorene solution, we exploit the unique properties of isolated polymeric chains such as ultrafast gain switching (switching response time of 150 fs ) with a 100% on–off ratio. In addition, by dispersing nanoparticles in the polymeric solution we are able to achieve random lasing in the microchannel.

© 2009 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(160.5470) Materials : Polymers
(130.4815) Integrated optics : Optical switching devices

History
Original Manuscript: July 6, 2009
Revised Manuscript: October 5, 2009
Manuscript Accepted: October 9, 2009
Published: October 20, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Krishna Chaitanya Vishnubhatla, Jenny Clark, Guglielmo Lanzani, Roberta Ramponi, Roberto Osellame, and Tersilla Virgili, "Femtosecond laser fabrication of microfluidic channels for organic photonic devices," Appl. Opt. 48, G114-G118 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-31-G114

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