Issue Date: August 31, 2009
Chip-Based Dye Laser
A new microfluidic dye laser switches its emission wavelength at frequencies of up to 3.6 kilohertz, faster than any previously reported dye laser, according to a new report (Lab Chip, DOI: 10.1039/b914066b). Such a device could be used for on-chip spectroscopy and flow cytometry. George M. Whitesides and Sindy K. Y. Tang of Harvard University and coworkers create the dye laser in a microfluidic channel from a train of alternating droplets containing rhodamine . . .
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