Scientists have developed a novel graphene-enabled photodetector that operates at room temperature, is highly sensitive, very fast, has a wide dynamic range and covers a broad range of THz frequencies.
Detecting terahertz (THz) light is extremely useful for two main reasons:
First, THz technology is becoming a key element in applications regarding security (such as airport scanners), wireless data communication, and quality control, to mention just a few. However, current THz detectors have shown strong limitations in terms of simultaneously meeting the requirements for sensitivity, speed, spectral range, being able to operate at room temperature, etc.
Second, it is a very safe type of radiation due to its low-energy photons, with more than a hundred times less energy than that of photons in the visible light range.
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