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Tera-4096 TeraHertz Imaging Camera by Terasense

April 11, 2018
category: General
Tera-4096 TeraHertz Imaging Camera by Terasense

The Tera-4096 terahertz imaging camera by Terasense is the largest standard THz imager model with a large 4096 pixels (64 x 64 array) imaging sensor. The camera comes with a pixel size of 1.5 x 1.5 mm, responsivity of 50 kV/W, noise equivalent power 1 nW/√Hz,  a certified frequency range 50 GHz – 700 GHz and is 5V USB powered making it the ideal terahertz imaging camera where high speed image acquisition rates of up to 5000 fps are required such as applications in research, industry and OEM manufacturers. There is an increasingly high interest in THz imaging technology in the following areas:-

Industrial: manufacturing process control, products and materials inspection, food inspection, hidden defects inspection, petrol and oil quality control and OEM applications. – Imaging: detecting the contents of packages or sealed documents. – Security: detection of concealed weapons and explosives, evaluation of biological threats, airline passenger screening. – Scientific: environmental sensing, pollution detection, plasma diagnostics, chemistry and biochemistry applications.

The detectors are fabricated with a GaAs high-mobility heterostructure in the standard semiconductor cycle using conventional optical lithography. The imaging sensor is manufactured on a single wafer. That process ensures high homogeneity and reproducibility of the plasmonic detector parameters (pixel-to-pixel deviation responsivity is within a 20- percent range). Each detector unit has a room-temperature responsivity up to 50 kV/W with read-out circuitry and noise-equivalent power of 1 nW/\sqrt{\rm{Hz}} in the frequency range 10 GHz — 1 THz. The detection mechanism is based on excitation of plasma oscillations in a two-dimensional electron system with subsequent rectification. The rectification takes place on special defects made in the electron system.

The camera is an active detecting devices and requires an external THz source. Terasense offer sub-terahertz wave sources based on IMPATT technology using 100 GHz compact IMPATT-diode generators with an output power up to 100 mW as an illumination source.

In addition to the standard THz camera models,Terasense also offer customized solutions to satisfy diverse configuration and geometry requirements. The tera-4096 terahertz camera is low cost, measures 16cm x16cm x 4cm and comes with a 1.5 year warranty.

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