Collinear dual-color laser emission from a microfluidic dye laser
Collinear dual-color laser emission from a microfluidic dye laser
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DOI：
10.1063/1.2179609
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发表时间：
2006-02-27
影响因子：
4
通讯作者：
Chen, Y
中科院分区：
文献类型：
--
作者：
Kou, Q;Yesilyurt, I;Chen, Y
从流经光学微腔的液体染料混合物中获得了芯片上的共线双色激光发射。利用软光刻技术制作了微流控通道，实现了光学谐振腔的集成。该激光腔体积为纳升，由两个平行的金镜组成，镀膜在光纤端面，并集成在聚二甲基硅氧烷芯片中。这样的设计允许激光发射与光纤的简单但有效的耦合。扩增介质为罗丹明6G和磺胺若丹明，溶解于普通乙醇溶液。当混合染料被脉冲倍频激光泵浦时，观察到波长分别为559 nm和597 nm的激光同时发射，显示出黄色和红色，且在单个输出光束内完全空间重叠。此外，与单一染料相比，混合染料系统的整体激光效率显著提高。(C)2006年美国物理研究所。
Collinear dual-color laser emission on a chip is obtained from a liquid dye mixture flowing through an optical microcavity. Soft lithography has been used to fabricate the microfluidic channels and integrate the optical resonator. The laser cavity, of nanoliter volume, is made of two parallel gold mirrors coated on the end faces of optical fibers and integrated into a polydimethylsiloxane chip. Such a design allows a simple but efficient coupling of the laser emission with an optical fiber. The amplification medium is composed of rhodamine 6G and sulforhodamine, dissolved in a common ethanol solution. When the dye mixture is optically pumped by a pulsed and frequency-doubled Nd:YAG laser, simultaneous laser emission at wavelengths 559 nm and 597 nm is observed, showing yellow and red colors with a complete spatial overlap within the single output beam. Moreover, the overall laser efficiency for the dye mixture system is significantly increased compared to that for the individual dyes. (c) 2006 American Institute of Physics.