Modeling of Plasmonic Waveguides for a High Sensitivity Optical Sensor

摘要

We propose a optical sensor which consists of a metal stripe and nano wire inside an optical fiber. In this device, electromagnetic energy is concentrated around the metal stripe and the energy can be efficiently absorbed into the nano wire. To perform electromagnetic simulation we verity that the electromagnetic energy inside the nano wire becomes three times larger when the metal stripe is placed.%金属ストライプとェォプ細線から構成する光検出器を提案する.本デバイスは,光ファイバー內の電磁エネルギーを金属ストライブ近傍に集中させ，ニオブ細線内の電磁界を增強できる.ニオブ細線のみの場合と比較し電磁エネルギーが3倍程度增強できることを亀磁界解析により明らかにする.