A low-threshold, high-efficiency microfluidic waveguide laser.
نویسندگان
چکیده
This communication describes a long (1 cm), laser-pumped, liquid core-liquid cladding (L2) waveguide laser. This device provides a simple, high intensity, tunable light source for microfludic applications. Using a core solution of 2 mM rhodamine 640 perchlorate, optically pumped by a frequency-doubled Nd:YAG laser, we found that the threshold for lasing was as low as 22 muJ (16-ns pulse length) and had a slope efficiency up to 20%. The output wavelength was tunable over a 20-nm range by changing the ratio of solvent components (dimethyl sulfoxide and methanol) in the liquid core.
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عنوان ژورنال:
- Journal of the American Chemical Society
دوره 127 25 شماره
صفحات -
تاریخ انتشار 2005