干涉仪

Abstract(#br)The biological and medical application of biosensors is more and more important with the development of technology and society. Detection of cells and biological molecules utilizing biosensors based on the analysis of surface stress would facilitate inexpensive and high-throughput test and diagnosis. This paper presents a biocompatible surface stress-based polydimethylsiloxane (PDMS) micro membrane biosensor. Each biosensor chip consists of two available PDMS micro membranes, one acts as active membrane and the other as reference.

摘要 利用聚焦750 keV质子微束在聚二甲基硅氧烷( PDMS )薄膜中制备了用于干涉仪应用的马赫-曾德尔( MZ )光波导。在0.3 mm × 40 mm范围内，通过机械台和扫描微束精确控制样品的位置，形成嵌入MZ波导结构。在PDMS薄膜中成功嵌入了芯径为8 μm的MZ波导，其深度为18 μm。将MZ波导与中心波长为1550 nm的红外光纤激光器耦合，利用红外摄像机的透射光强图像进行了评价。结果表明，在PDMS中嵌入MZ波导结构实现了单点光的传输，这对于基于聚合物MZ波导构建光开关电路是必要的。