A low-threshold, high-efficiency microfluidic waveguide laser.

Dmitri V Vezenov; Brian T Mayers; Richard S Conroy; George M Whitesides; Preston T Snee; Yinthai Chan; Daniel G Nocera; Moungi G Bawendi

doi:10.1021/ja0517421

PubMed · 15969563

A low-threshold, high-efficiency microfluidic waveguide laser.

Dmitri V Vezenov·Brian T Mayers·Richard S Conroy·George M Whitesides·Preston T Snee·Yinthai Chan·Daniel G Nocera·Moungi G Bawendi

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Abstract

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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Equipment Design Lasers Microfluidic Analytical Techniques Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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Dmitri V Vezenov, Brian T Mayers, Richard S Conroy, George M Whitesides, Preston T Snee, Yinthai Chan, Daniel G Nocera, Moungi G Bawendi. 2005-06-29. A low-threshold, high-efficiency microfluidic waveguide laser.. https://doi.org/10.1021/ja0517421

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