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Synchronized Terahertz Plasmons in Ultra-Thin Membrane GaN HEMT Arrays

MRSEC REU student, Nicole Trometer, is a co-author in this study.

Promising a myriad of transformative applications in various fields such as communications, security, chemical & biological sensing, and astronomy, terahertz (THz) technology is a very promising technological field.

In order to realize efficient THz systems, development of active devices, such as detectors and emitters is required. In this context, promising large scale integration, spatial uniformity, and low cost, field effect transistor (FET) -based THz detection has turned into a de-facto technological goal.

THz electromagnetic waves can interact with 2DEGs, such as the channel in a FET, strongly due to the match between the wave frequency and electron scattering time. In our work we try to answer a fundamental question: should you design a coupled or a synchronized 2DEG oscillator so to maximize THz coupling into these devices?

Our work demonstrates that synchronized resonators can provide a superior coupling and therefore a superior detector response.