Optofluidic microring dye laser embedded in polydimenthylsiloxane with reduced threshold  

作　　者：SHEN ZhenHua ZOU Yun CHEN XianFeng 

机构地区：[1]Department of Physics,State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Jiao Tong University

出　　处：《Chinese Science Bulletin》2013年第7期594-597,共4页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 61125503);the Foundation for Development of Science and Technology of Shanghai (Grant Nos. 11XD1402600 and 10JC1407200)

摘　　要：We demonstrate an integrated optofluidic microring dye laser with a relatively low threshold on a polydimenthylsiloxane(PDMS) chip.The chip was fabricated through conventional soft lithography.It consists of a liquid waveguide with microring structure providing the feedback.A reduced threshold is realized due to the unique design of the bus waveguide across the center of the microring structure,which results in a great reduction in the cavity losses.Laser dye rhodamine 6G(R6G) dissolved in benzyl alcohol was injected into the microfluidic channel as the gain medium.When the dye laser was pumped with a pulsed laser at 532 nm,the dye laser oscillation was achieved with a threshold of only 4?5 μJ mm-2.The convenience in fabrication and operation makes the optofluidic microring dye laser a promising underlying photonic component in the integrated optofluidic systems.We demonstrate an integrated optofluidic microring dye laser with a relatively low threshold on a polydimenthylsiloxane （PDMS） chip. The chip was fabricated through conventional soft lithography. It consists of a liquid waveguide with microring structure providing the feedback. A reduced threshold is realized due to the unique design of the bus waveguide across the center of the microring structure, which results in a great reduction in the cavity losses. Laser dye rhodamine 6G （R6G） dis- solved in benzyl alcohol was injected into the microfluidic channel as the gain medium. When the dye laser was pumped with a pulsed laser at 532 nm, the dye laser oscillation was achieved with a threshold of only 4-5 pJ mm-2. The convenience in fab- rication and operation makes the optofluidic microring dye laser a promising underlying photonic component in the integrated optofluidic systems.

关 键 词：染料激光器 微环 Op 嵌入 门槛 流体通道 罗丹明6G 激光器泵浦 

分 类 号：TN248.33[电子电信—物理电子学] TB512[理学—物理]