A simple Fourier transform spectrometer for terahertz applications  

作　　者：JIANG Yi LIANG Ming JIN BiaoBing KANG Lin XU WeiWei CHEN Jian WU PeiHeng 

机构地区：[1]Research Institute of Superconducting Electronics,Nanjing University,Nanjing 210093,China

出　　处：《Chinese Science Bulletin》2012年第6期573-578,共6页

基　　金：supported by the National Basic Research Program of China (2007CB310404 and 2011CBA00107);the National Natural Science Foundation of China (11173015);the Doctoral Funds of the Ministry of Education of China (20090091110039)

摘　　要：A simple Fourier transform spectrometer was designed and constructed for the measurement of detectors,sources,passive devices and materials in the terahertz(THz) range.It can be operated at frequencies between 0.3 and 1.5 THz,using a 50-μm-thick Mylar-film beam splitter.The spectral range can be changed by altering the thickness of the beam splitter.The highest frequency resolution is 750 MHz.We studied the properties of heterodyne detectors including superconductor mixers and semiconductor harmonic mixers,direct detectors including an InSb semiconductor bolometer,superconducting tunnel junctions and the Golay cell,and sources including Gunn oscillators and a microwave source with its multipliers,as well as various materials and passive devices including Si wafers and metal mesh filters.A simple Fourier transform spectrometer was designed and constructed for the measurement of detectors, sources, passive devices and materials in the terahertz （THz） range. It can be operated at frequencies between 0.3 and 1.5 THz, using a 50-μm-thick My- lar-film beam splitter. The spectral range can be changed by altering the thickness of the beam splitter. The highest frequency resolution is 750 MHz. We studied the properties of heterodyne detectors including superconductor mixers and semiconductor harmonic mixers, direct detectors including an InSb semiconductor bolometer, superconducting tunnel junctions and the Golay cell, and sources including Gunn oscillators and a microwave source with its multipliers, as well as various materials and passive devices including Si wafers and metal mesh filters.

关 键 词：傅里叶变换光谱仪 太赫兹 应用 无源器件 出现频率 谐波混频器 超导混频器 超导隧道结 

分 类 号：TN943.6[电子电信—信号与信息处理] TH744.1[电子电信—信息与通信工程]