Bleaching and diffusion dynamics in optofluidic dye lasers

Details Bleaching and diffusion dynamics in optofluidic dye lasers Bleaching and diffusion dynamics in optofluidic dye lasers

2007-02-27

arxiv.org/abs/physics/0702236v1

Appl. Phys. Lett. 90, 143501 (2007).

Physics

Optics

3 pages including 3 figures. Accepted for APL

Scientific paper

10.1063/1.2718503

We have investigated the bleaching dynamics that occur in optofluidic dye lasers where the liquid laser dye in a microfluidic channel is locally bleached due to optical pumping. We find that for microfluidic devices, the dye bleaching may be compensated through diffusion of dye molecules alone. By relying on diffusion rather than convection to generate the necessary dye replenishment, our observation potentially allows for a significant simplification of optofluidic dye laser device layouts, omitting the need for cumbersome and costly external fluidic handling or on-chip microfluidic pumping devices.

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