Evidence for THz Superradiance in Optically-Pumped Quantum-Dot Arrays

We present the first experimental results of THz oscillatory radiation from quantum dot arrays in GaAs pumped by 1550-nm femtosecond pulses. A record of ~117 μW THz power was obtained, with a 1550 nm-to-THz power conversion efficiency of ~0.2%.

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Bibliographic Details
Main Authors: Zhang, W-D., Brown, E.R., Mingardi, A., Mirin, R.P., Jahed, N., Saeedkia, D.
Format: Conference Proceeding
Language:English
Subjects:
Gallium arsenide
Optical pulses
Optical pumping
Physics
Quantum dots
Spontaneous emission
Ultrafast optics
Online Access:Request full text
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Description
Summary:We present the first experimental results of THz oscillatory radiation from quantum dot arrays in GaAs pumped by 1550-nm femtosecond pulses. A record of ~117 μW THz power was obtained, with a 1550 nm-to-THz power conversion efficiency of ~0.2%.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz.2019.8873744