The Application of Microplasma in the Terahertz Field: A Review

Abstract

Terahertz functional devices are essential to the advanced applications of terahertz radiation in biology and medicine, nanomaterials, and wireless communications. Due to the small size and high plasma frequency of microplasma, the interaction between terahertz radiation and microplasma provides opportunities for developing functional terahertz devices based on microplasma. This paper reviews the applications of microplasma in terahertz sources, terahertz amplifiers, terahertz filters, and terahertz detectors. The prospects and challenges of the interdisciplinary research between microplasma and terahertz technology are discussed.

Continuous wave THz imaging of multi-walled carbon nanotubes polymer composites

“…Over the last decades, material defectoscopy at terahertz (THz) frequency range became popular [14]. The prospects for the use of THz radiation are primarily because the photon energy of radiation in the submillimeter frequency range is 0.1-0.001 eV (non-ionizing) [15]. The submillimeter-wave radiation has a high penetrating power through thin dielectric media [16].…”

“…THz imaging has a number of advantages over long-used methods of non-destructive control, such as optical [17] and X-ray [18] diagnostics. Among the advantages, low measurement error due to the simplicity of processing the results; high compatibility with biological objects [15]; technical implementation of THz systems provides usability and relatively low cost of components relative to more precise X-ray systems. The purpose of this research is to evaluate the heterogeneity of composites based on MWCNTs and determine its dependence on the time of ultrasonic treatment.…”