全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

电可调非致冷红外探测原理

Keywords: 表面等离子体,电可调探测器,红外吸收,光谱探测

Full-Text   Cite this paper   Add to My Lib

Abstract:

传统的红外光谱探测技术能够提供丰富的光谱信息, 应用广泛, 但该技术同时也存在一定局限性, 如很难同步实现探测器小型化和探测波段实时调节等方面的要求.提出了一种基于电可调表面等离子体谐振吸收的新型FET红外探测器结构.基于电磁场理论分析了结构参数对红外光学吸收的影响, 并通过结构参数的优化使吸收结构对特定红外波段的吸收率达到90%以上.栅压变化时VOx热敏层中载流子的浓度分布和折射率均发生变化, 显示该器件具有明显的电可调光谱吸收特性.借助于这种FET结构, 非制冷红外探测器将具有片上可调光谱探测能力, 同时具有易于阵列化特点, 为微小型可配置光谱成像探测器件提供了一条思路

References

[1]  1Lai Jian-Jun, Liang Hua-Feng, Zhou Zhi-Ping, et al. Patterning of visible/infrared dual-band microstrip filter arrays for multispectral imaging application [J], J. Micromech. Microeng, 2009, 19: 085004.
[2]  2Rogalski A.Infrared Detectors for the Future [J], Act Physic Polonic, 2009, 116(3): 389-406.
[3]  3Viacheslav V Popov.Plasmon Excitation and Plasmonic Detection of Terahertz Radiation in the Grating-Gate Field-Effect-Transistor Structures [J], J Infrared Milli Terahz Waves, 2011, 32: 1178–1191.
[4]  4Young Chul Jun, Edward Gonzales, John L Reno, et al. Shaner, Alon Gabbay, and Igal Brener, Active tuning of mid-infrared metamaterials by electrical control of carrier densities [J]. Optics Express, 2012, 20(2): 1903-1911.
[5]  5Majμmdar A, Choi K K, Reno J L, et al, Voltage tunable superlattice infrared detector for mid-and long-wavelength detection [J]. Appl.Phys.Lett, 2005, 86: 261110(2005).
[6]  6Wang Lin, Hu Wei-Da, Wang Jun,et al. Plasmon resonant excitation in grating-gated AlN barrier transistors at terahertz frequency [J]. Applied Physics Letters, 2012,100: 123501.
[7]  7GUO Nan, HU Wei-Da, CHEN Xiao-Shuang, et al. Enhanced plasmonic resonant excitation in a grating gated field-effect transistor with supplemental gates [J]. Optics Express,2013, 21: 1606-1614.
[8]  8Hu W D. Wang L,Chen X S,et al. Room-temperature plasmonic resonant absorption for grating-gate GaN HEMTs in far infrared terahertz domain [J]. Optical and Quantum Electronics, 2013, 45: 713-720(2013)
[9]  9Verleur Hans W, Barker A S, Berglund C N. Optical Properties of VO2 between 0.25 and 5 eV [J]. Physical Review, 1968, 172(3): 788-792.
[10]  10Ordal M A, Long L L, Bell R J, et al. Optical properties of the metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd, Pt, Ag, Ti and W in the infrared and far infrared [J]. Applied Optics, 1985, 24(24): 4493-4497.
[11]  11Kenneth Alexander Diest. Active Metal-Insulator-Metal Plasmonic Devices[D]. Ph.D thesis, California Institute of Technology, Pasadena, California, 2010, 105-107.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133