Terahertz Imaging

Terasense has developed an original patent-protected technology for making a new type of semiconductor detectors for sub-THz rays operating at room temperatures. The detectors can be combined into a compact and rather inexpensive sensor array (similar to CCD/CMOS sensors in a photo camera). The Company is developing imaging applications for THz and sub-THz frequency ranges based on its sensors.At present there are several existing types of sub-THz detectors:
Cryogenic superconducting and semiconducting bolometers
Have excellent detecting properties but are expensive in production and especially in operation.

Heterodyne detectors
Require local oscillator for functioning, which makes them rather complex and expensive in production.

Room-temperature bolometers and several kinds of diodes
They are simpler and less expensive but suffer from low responsivity and are difficult for mass production.. All of them exist only as a single detector or short lines, therefore, for imaging applications it is necessary to perform mechanical scan over imaging surface, which complicates device and drastically reduces its performance. Plasmonic detectors proposed by Terasense have good sensitivity comparable with other available detectors working in terahertz range (0.1 – 1.0 THz), but in contrast they are very cheap (few $ per pixel), has uniform pixel-to-pixel sensitivity and they can be easily produced in large quantities in the form of 2D array thanks to compatibility of the Terasense technology with mass semiconductor manufacturing lines. Therefore, the detector is suitable for use as a sensor in an sub-THz camera without any moving parts.



A sub-nanosecond detector for the range of 50 GHz to 0.7 THz.  

A poweful THz soource with output power upto 1W. The core technology resides on a backward wave oscillator effect. 

TeraSense series of terahertz sources (IMPATT diodes) are silicon double drift diodes with a 0.6 um transit region, mounted on copper heat sink.

The camera pixel size determines image resolution of 1.5 mm, which is more than ample to support imaging in most industrial applications.

  • Frequency range: 50 GHz - 1.0 THz
  • High responsivity up to 50 kV/W
  • Operating room temperature
  • Compact size and low cost
  • USB powered (5V)

About us

Ara Scientific ApS is a leader supplier for THz cameras, THz sources, fiber optic spectrometers and their accessories. Being a customer oriented in terms of fast delivery, economic prices, precise and accurate technical quotation is our goal and determines our working strategies. 

There are demo setups available for most of the equipments that we provide. So, in case you are interested to test your ideas or preformance of our products, please do not hesitate to contact us.