Current Optics and Photonics

Optical Society of Korea (한국광학회)
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Surface Emitting Terahertz Transistor Based on Charge Plasma Oscillation

  • Kumar, Mirgender (Department of Electronics Engineering, Yeungnam University) ;
  • Park, Si-Hyun (Department of Electronics Engineering, Yeungnam University)
  • Received : 2017.01.24
  • Accepted : 2017.07.13
  • Published : 2017.10.25
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Abstract

This simulation based study reports a novel tunable, compact, room temperature terahertz (THz) transistor source, operated on the concept of charge plasma oscillation with the capability of radiating within a terahertz gap. A vertical cavity with a quasi-periodic distributed-Bragg-reflector has been attached to a THz plasma wave transistor to achieve a monochromatic coherent surface emission for single as well as multi-color operation. The resonance frequency has been tuned from 0.5 to 1.5 THz with the variable quality factor of the optical cavity from 5 to 290 and slope efficiency maximized to 11. The proposed surface emitting terahertz transistor is able to satisfy the demand for compact solid state terahertz sources in the field of teratronics. The proposed device can be integrated with Si CMOS technology and has opened the way towards the development of silicon photonics.

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References

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