We have investigated a THz detection scheme based on mixing of electrical signals in a voltage-dependent capacitance made out of suspended graphene. We have analyzed both coherent and incoherent detection regimes and compared their performance with the state of the art. Using a high-amplitude local oscillator, we anticipate potential for quantum limited detection in the coherent mode. The sensitivity stems from the extraordinary mechanical and electrical properties of atomically thin graphene or graphene-related 2D materials.
- quantum noise
- terahertz detectors
Hassel, J., Oksanen, M., Elo, T., Seppä, H., & Hakonen, P. J. (2017). Terahertz detection using mechanical resonators based on 2D materials. AIP Advances, 7(6), . https://doi.org/10.1063/1.4990405