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Optofluidic evanescent dye laser based on a distributed feedback circular grating

Song, Wuzhou and Vasdekis, Andreas E. and Li, Zhenyu and Psaltis, Demetri (2009) Optofluidic evanescent dye laser based on a distributed feedback circular grating. Applied Physics Letters, 94 (16). Art. No. 161110. ISSN 0003-6951. doi:10.1063/1.3124652.

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We demonstrate an optofluidic evanescent laser based on a solid circular distributed feedback grating with the dye solution acting as the cladding layer. The laser mode is confined within the grating and experiences optical gain via the interaction between its evanescent component with the dye solution. Above a pump energy of 9.5 µJ/pulse, the laser exhibited single mode operation at 571 nm. Stable, narrow-linewidth emission was observed for a wide range of fluid refractive indices, even for those lower than of polydimethylsiloxane. We attribute this property to the evanescent coupling of the laser mode with the fluidic gain

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Additional Information:© 2009 American Institute of Physics. Received 20 February 2009; accepted 2 April 2009; published 24 April 2009. The research was partially supported by the DARPA center for optofluidic integration.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Subject Keywords:claddings; diffraction gratings; dye lasers; liquid lasers; optical pumping; refractive index
Issue or Number:16
Record Number:CaltechAUTHORS:20090603-080059405
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14354
Deposited By: Tony Diaz
Deposited On:17 Aug 2009 18:40
Last Modified:08 Nov 2021 23:11

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