|Generation of THz radiation due to 2D-plasma oscillations in interdigitated GaN quantum well structures at room temperature |
(Article) Publié: Lithuanian Journal Of Physics, vol. 54 p.58 - 62 (2014)
Ref HAL: hal-01636434_v1
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We report on room temperature electrically-induced terahertz emission from interdigitated GaN quantum well structures. The emission spectrum has been analysed in a Michelson interferometer using a 4K-Si bolometer as a terahertz detector. A resonant peak at the frequency of around 3 THz was observed in emission spectra. A threshold behaviour of the resonance with respect to applied voltage takes place. By using the proposed analytical model the measured/observed experimentally resonant behaviour of emission spectra is interpreted as a result of ungated stream-plasma instability in the channel.