Issue 21, 2011
From the journal:

Lab on a Chip

A switchable digital microfluidic droplet dye-laser†

Alexander J. C. Kuehne,a   Malte C. Gather,b   Irwin A. Eydelnant,c   Seok-Hyun Yun,b   David A. Weitzad  and  Aaron R. Wheeler*ce  

* Corresponding authors

a School of Engineering and Applied Sciences, Harvard University, 9 Oxford St, Cambridge, MA, USA

b Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom St, Boston, MA, USA

c Institute for Biomaterials and Biomedical Engineering, University of Toronto, 164 College St, Toronto, ON, Canada
E-mail: aaron.wheeler@utoronto.ca
Fax: +416 946 3865
Tel: +416 946 3864

d Department of Physics, Harvard University, 9 Oxford St, Cambridge, MA, USA

e Department of Chemistry, University of Toronto, 80 St. George St, Toronto, ON, Canada

Abstract

Digital microfluidic devices allow the manipulation of droplets between two parallel electrodes. These electrodes can act as mirrors generating a micro-cavity, which can be exploited for a droplet dye-laser. Three representative laser-dyes with emission wavelengths spanning the whole visible spectrum are chosen to show the applicability of this concept. Sub-microlitre droplets of laser-dye solution are moved in and out of a lasing site on-chip to down-convert the UV-excitation light into blue, green and red laser-pulses.

Graphical abstract: A switchable digital microfluidic droplet dye-laser

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Article information

DOI
https://doi.org/10.1039/C1LC20405J
Article type
Technical Note
Submitted
11 May 2011
Accepted
29 Jul 2011
First published
08 Sep 2011

Lab Chip, 2011,11, 3716-3719

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A switchable digital microfluidic droplet dye-laser

A. J. C. Kuehne, M. C. Gather, I. A. Eydelnant, S. Yun, D. A. Weitz and A. R. Wheeler, Lab Chip, 2011, 11, 3716 DOI: 10.1039/C1LC20405J

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