ZnO subwavelength wires for fast-response mid-infrared detection.
Room temperature operating thermal detection for mid-infrared light based on ZnO subwavelength wires has been demonstrated. Electric resistance in ZnO wires increases linearly with the intensity of incident light. Noise equivalent power (NEP) of 5.8 microW/Hz(1/2) (at 1 kHz) with typical response times as fast as 1.3 ms is obtained at 10.6-microm wavelength. The sensitivity and response time of the detector are also found to be insensitive to the ambient.
Dai
Wei
W
State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China.
Yang
Qing
Q
Gu
Fuxing
F
Tong
Limin
L
D004867:Equipment Design; D006358:Hot Temperature; D007259:Infrared Rays; D008027:Light; D008855:Microscopy, Electron, Scanning / Q000379:methods; D055096:Optical Devices; D055095:Optics and Photonics; D017785:Photons; D013055:Spectrophotometry, Infrared / Q000379:methods*; D013696:Temperature; D014159:Transducers; D015034:Zinc Oxide / Q000737:chemistry*
D015034:Zinc Oxide