Antenna-coupled field-effect transistors for multi-spectral terahertz imaging up to 4.25 THz.

We demonstrate for the first time the applicability of antenna-coupled field-effect transistors for the detection of terahertz radiation (TeraFETs) for multi-spectral imaging from 0.76 to 4.25 THz. TeraFETs were fabricated in a commercial 90-nm CMOS process and noise-equivalent powers of 59, 20, 63, 85 and 110 pW/√(Hz) at 0.216, 0.59, 2,52, 3.11 and 4.25 THz, respectively, have been achieved. A set of TeraFETs has been applied in raster-scan transmission and reflection imaging of pellets of sucrose and tartaric acid simulating common plastic explosives. Transmittance values are in good agreement with Fourier-transform infrared spectroscopy data. The spatial distribution of the components in the samples has been determined from the transmission data using principal component analysis.

[1]  H. Heise,et al.  Substance identification based on transmission THz spectra using library search , 2014 .

[2]  Kyung Ik Sim,et al.  Reflection terahertz time-domain spectroscopy of RDX and HMX explosives , 2014 .

[3]  E. Socher,et al.  Exploration of Terahertz Imaging with Silicon MOSFETs , 2014 .

[4]  H. Meyer,et al.  A passive submillimeter video camera for security applications , 2013, 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).

[5]  P. D. de Maagt,et al.  Broadband Terahertz Analysis of Energetic Materials—Influence of Crystal Structure and Additives , 2013, IEEE Transactions on Terahertz Science and Technology.

[6]  K. Sertel,et al.  A Broadband Focal Plane Array Camera for Real-time THz Imaging Applications , 2013, IEEE Transactions on Antennas and Propagation.

[7]  G. Valusis,et al.  Continuous Wave Spectroscopic Terahertz Imaging With InGaAs Bow-Tie Diodes at Room Temperature , 2013, IEEE Sensors Journal.

[8]  Yan Zhao,et al.  A 1 k-Pixel Video Camera for 0.7–1.1 Terahertz Imaging Applications in 65-nm CMOS , 2012, IEEE Journal of Solid-State Circuits.

[9]  S. Winnerl,et al.  CMOS Integrated Antenna-Coupled Field-Effect Transistors for the Detection of Radiation From 0.2 to 4.3 THz , 2012, IEEE Transactions on Microwave Theory and Techniques.

[10]  Gintaras Valušis,et al.  InGaAs-based bow-tie diode for spectroscopic terahertz imaging , 2011 .

[11]  T. Trzciński,et al.  THz spectroscopy of explosive-related simulants and oxidizers , 2011 .

[12]  Chi-Kuang Sun,et al.  Performance of THz fiber-scanning near-field microscopy to diagnose breast tumors , 2011, 2011 International Conference on Infrared, Millimeter, and Terahertz Waves.

[13]  V. Krozer,et al.  THz Active Imaging Systems With Real-Time Capabilities , 2011, IEEE Transactions on Terahertz Science and Technology.

[14]  V. Goudon,et al.  Active THz imaging and explosive detection with uncooled antenna-coupled microbolometer arrays , 2011, Defense + Commercial Sensing.

[15]  Laurent Dussopt,et al.  Broadband terahertz imaging with highly sensitive silicon CMOS detectors. , 2011, Optics express.

[16]  N. Massari,et al.  A monolithic visible, infrared and terahertz 2D detector , 2010, 35th International Conference on Infrared, Millimeter, and Terahertz Waves.

[17]  K. Kawase,et al.  THz imaging techniques for nondestructive inspections , 2010 .

[18]  Naoki Oda,et al.  Uncooled bolometer-type Terahertz focal plane array and camera for real-time imaging , 2010 .

[19]  Peter H. Siegel,et al.  Fast high-resolution terahertz radar imaging at 25 meters , 2010, Defense + Commercial Sensing.

[20]  N. Vieweg,et al.  Monitoring polymeric compounding processes inline with THz time-domain spectroscopy , 2009 .

[21]  M. Thomson,et al.  Diagnosing water content in paper by terahertz radiation. , 2008, Optics express.

[22]  E. Linfield,et al.  Absorption-sensitive diffuse reflection imaging of concealed powders using a terahertz quantum cascade laser. , 2008, Optics express.

[23]  Alvydas Lisauskas,et al.  Terahertz imaging with GaAS field-effect transistors , 2008 .

[24]  A. Davies,et al.  Terahertz spectroscopy of explosives and drugs , 2008 .

[25]  G. Bastiaans,et al.  Absorption coefficients of selected explosives and related compounds in the range of 0.1-2.8 THz. , 2007, Optics express.

[26]  B. Fischer,et al.  Chemical recognition in terahertz time-domain spectroscopy and imaging , 2005 .

[27]  Hartmut G. Roskos,et al.  Remote identification of protrusions and dents on surfaces by terahertz reflectometry with spatial beam filtering and out-of-focus detection , 2003 .

[28]  Hiromasa Ito,et al.  Component Spatial Pattern Analysis of Chemicals Using Terahertz Spectroscopic Imaging , 2003 .