Ultrafast Terahertz detectors

Terahertz detector description

Ultrafast detectors by TeraSense consistently demonstrate response time of less than 150 ps. This was confirmed by direct observation of its impulse response function. The detector was excited by 200 nJ 1 ps laser pulse with a broad spectrum ranging from 0.1 to 3 THz its response recorded by a high speed oscilloscope. The response function shows rise and fall times of 150 ps limited by the oscilloscope 4 GHz bandwidth.

The measured short response time makes it possible to use our detectors for straightforward investigation of fast transient processes in THz-science and telecommunication.

TeraSense® detectors are sensitive in a wide frequency range. However, their frequency response is not continuous, but consists of multiple bands (peak structures). The positions of the peaks on the responsivity curve can be tuned at the manufacturing stage to suit specific client’s requirements.

Our ultrafast high-sensitive sub-THz detectors are meant for exploring fast-changing and transient sub-THz signals and impulses. Terasense detectors are actually expediting the advent of ultra-high-speed wireless telecommunication networks which is about to happen in the near future. Terasense ultrafast detectors are also ultimate tools for characterization, calibration and tuning of impulse sub-THz sources.


Please note that in addicion to ultrafast detectors we can offer our FAST detectors, which are not so fast, but show much higher sensitivity (response time: 1 μs; sensitivity 10V/W).

Description / Specifications Sub-THz Detectors
Ultrafast FAST
Response time: 150 ps 1 μs
SpectralRange 50 GHz – 0.7 THz 50 GHz – 0.7 THz
Responsivity (typical): 0.5 V/W 10 V/W
Noise Equivalent Power: 2 nW/√Hz 1 nW/√Hz
Dimensions: 23 х 29 х 6.5 mm 23 х 29 х 6.5 mm
Impedance: 50 Ω 10 kΩ
Output connector: SMA SMA
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Ultrafast Terahertz detectors

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