光學感測器在生物、化學、醫療等各領域皆有各樣的發展，其中表面電漿共振儀由於其免標定及高靈敏度並且可結合抗體抗原免疫反應之特性而更經常被利用在生物感測器上。
Optical devices have been demonstrated for its unique advantages in various area as chemical qualification, biological sensing, medical diagnosis for years. Among all these devices, SPR (Surface plasmon resonance) devices have been shown for its ultra-sensitivity, low dosage sample required and label free detection.