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Applied Physics Letters / Volume 94 / Issue 16 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 94, 161110 (2009); http://dx.doi.org/10.1063/1.3124652 (3 pages)

Optofluidic evanescent dye laser based on a distributed feedback circular grating

Wuzhou Song1, Andreas E. Vasdekis1, Zhenyu Li2, and Demetri Psaltis1

1Optics Laboratory, School of Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
2Electrical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA

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(Received 20 February 2009; accepted 2 April 2009; published online 24 April 2009)

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.

© 2009 American Institute of Physics

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KEYWORDS and PACS

Keywords

claddings, diffraction gratings, dye lasers, liquid lasers, optical pumping, refractive index

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3124652

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    W. Z. Song, A. E. Vasdekis, Z. Y. Li, and D. Psaltis, Appl. Phys. Lett. 94, 051117 (2009)APPLAB000094000005051117000001.

    C. Peroz, J. C. Galas, L. Le Gratiet, Y. Chen, and J. Shi, Appl. Phys. Lett. 89, 243109 (2006)APPLAB000089000024243109000001.


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