Simulation of THz generation and propagation from photo-Dember emitters

Maple, L. C.; Gow, Paul C.; Apostolopoulos, Vasilis

doi:10.1364/josab.35.001552

Cited by 1 publication

(2 citation statements)

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“…The nanodevices are one of the most promising alternatives to the development of the THz technology. Recently, the semiconductor nanodevices have been employed for the generation and detection of THz radiation [1][2][3][4][5][6] showing an enormous potential for their application.…”

Section: Introductionmentioning

confidence: 99%

“…THz radiation generation technology can be roughly classified into two categories: photonic and electronic. Phenomena such as the photo-Dember effect [2], Gunn oscillations [3], quantum cascade lasers [4], and difference-frequency mixing in nonlinear crystals [5] have been used to generate THz through the electronic approach. In these techniques, the semiconductor material has a crucial role, and its properties can be further improved by the use of nanostructures.…”

Section: Introductionmentioning

confidence: 99%

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Semiconductor Surface State Engineering for THz Nanodevices

Cortes-Mestizo¹,

Briones²,

Espinosa-Vega³

et al. 2020

Electromagnetic Materials and Devices

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This chapter is dedicated to study the semiconductor surface states, which combined with nanolithography techniques could result on remarkable properties of advanced nanodevices suitable for terahertz (THz) signal detection or harvesting. The author presents the use of low-dimensional semiconductor heterostructures for the development of the so-called self-switching diodes (SSDs), studying by simulation tool key parameters in detail such as the shape and size of the two-dimensional electron gas system. The impact of the geometry on the working principle of the nanodevice and the effects on current-voltage behavior will be described in order to acquire design guidelines that may improve the performance of the self-switching diodes when applied to low-power square-law rectifiers as well as elements in rectennas by appropriately setting the size of the components.

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