Nano Optoelectronic Sensors and Devices

Chapter 9. Nanoantennas on Nanowire-Based Optical Sensors

Carmen Kar Man Fung*, Ning Xi^†, Balasubramaniam Shanker^† and King Wai Chiu Lai^†

^*Hong Kong Productivity Council, Hong Kong

^†Department of Electrical and Computer Engineering, Michigan State University, Michigan

Chapter Outline

9.1 Introduction 151

9.2 Nanoantenna Design Consideration for IR Sensors 152

9.2.1 Optical Nanoantennas Combined with CNT-Based IR Sensors 152

9.3 Theoretical Analysis: Nanoantenna Near-Field Effect 153

9.4 Fabrication of Nano Sensor Combined with Nanoantenna 154

9.5 Photocurrent Measurement on Nano Sensor Combined with Nanoantenna 157

9.6 Summary 158

References 160

The advantage of employing CNTs as IR sensing elements is their low noise level. However, the signal received is ...