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Using quantum dots to produce a CMOS terahertz camera and polarimeter

Quantum dots can convert terahertz photons into visible light. This mechanism is used to develop a semiconductor-based room-temperature terahertz camera that can simultaneously record the field strength and polarization states of a terahertz beam. The proposed detector has fast speeds and can be manufactured at the wafer-scale.

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Fig. 1: THz camera and polarimeter using QDs to enhance the conversion of THz photons to visible photons.


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This is a summary of: Shi, J. et al. A room-temperature polarization-sensitive CMOS terahertz camera based on quantum-dot-enhanced terahertz-to-visible photon upconversion. Nat. Nanotechnol. (2022).

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Using quantum dots to produce a CMOS terahertz camera and polarimeter. Nat. Nanotechnol. 17, 1247–1248 (2022).

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