Results 21 to 30 of about 31,529 (265)
Terahertz polarization imaging
Optics Letters, 2005 We present a new method to measure the polarization state of a terahertz pulse by using a modified electro-optic sampling setup. To illustrate the power of this method, we show two examples in which the knowledge of the polarization of the terahertz pulse is essential for interpreting the results: spectroscopy measurements on polystyrene foam and ...
Van der Valk, N.C.J. (author) +2 more
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Metamaterial-Based Terahertz Imaging [PDF]
IEEE Transactions on Terahertz Science and Technology, 2015 This article presents the design of an innovative, low-cost, uncooled, metamaterial based terahertz (THz) focal plane array (FPA). A single pixel is composed of a resonant metamaterial absorber and micro-bolometer sensor integrated in a standard 180 nm CMOS process.
Escorcia Carranza, Ivonne +3 more
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Terahertz single pixel imaging based on a Nipkow disk [PDF]
, 2012 We describe a terahertz single pixel imaging system based on a Nipkow disk. Nipkow disks have been used for fast scanning imaging systems since the first experimental television was invented in 1926.
Alam +14 more
core +1 more source
Theoretical Investigation on Microcavity Coupler for Terahertz Quantum-Well Infrared Photodetectors
IEEE Access, 2020 Resonant behaviors and absorption enhancement of metallic grating-dielectric-metal (GDM) microcavity are theoretically investigated. The GDM structure is treated as periodic unit cells of two serially-connected metal-dielectric-metal (MDM) and air ...
Xuguang Guo +5 more
doaj +1 more source
CMOS Terahertz Metamaterial Based 64 × 64 Bolometric Detector Arrays [PDF]
, 2017 We present two terahertz detectors composed of microbolometer sensors (vanadium oxide and silicon pn diode) and metamaterial absorbers monolithically integrated into a complementary metal oxide semiconductor (CMOS) process.
Cumming, David R.S. +3 more
core +1 more source
Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]
, 2010 We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas +5 more
core +1 more source
Terahertz spectral properties of glucose and two disaccharides in solid and liquid states
iScience, 2022 Summary: The vibrational and rotational frequencies of most biological macromolecules fall within the terahertz (THz) band; therefore, the THz wave has a strong ability to distinguish substances.
Haiyun Huang +5 more
doaj +1 more source
A Review on Terahertz Technologies Accelerated by Silicon Photonics
Nanomaterials, 2021 In the last couple of decades, terahertz (THz) technologies, which lie in the frequency gap between the infrared and microwaves, have been greatly enhanced and investigated due to possible opportunities in a plethora of THz applications, such as imaging,
Jingya Xie +6 more
doaj +1 more source
Penetrating 3-D Imaging at 4- and 25-m Range Using a Submillimeter-Wave Radar [PDF]
, 2008 We show experimentally that a high-resolution imaging radar operating at 576–605 GHz is capable of detecting weapons concealed by clothing at standoff ranges of 4–25 m.
Bryllert, Tomas +10 more
core +1 more source
Terahertz Magneto-Optic Sensor/Imager [PDF]
Scientific Reports, 2020 AbstractWe are reporting a new type of compact magneto-optic sensor constructed from terahertz-wave spintronic emitter and electro-optic detector. The corresponding terahertz polarization output of the emitter and the detection phase-sensitivity of the detector depend on the vector of the external magnetic field.
Bulgarevich, Dmitry S. +8 more
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