Terahertz orotrons and oromultipliers

VL Bratman, BS Dumesh, AE Fedotov… - … on Plasma Science, 2010 - ieeexplore.ieee.org
The capabilities of two types of terahertz sources based on stimulated Smith-Purcell
radiation of electrons in open cavities are discussed. A series of developed pulsed orotrons …

Surface flute waves in plasmas

V Girka, I Girka, M Thumm - Cham: Springer, 2014 - Springer
A comprehensive study of the properties of electromagnetic eigenwaves propagating
perpendicular to the axis of symmetry in various cylindrical waveguide-structures filled with …

Powerful surface-wave oscillators with two-dimensional periodic structures

NS Ginzburg, AM Malkin, AS Sergeev… - Applied Physics …, 2012 - pubs.aip.org
We propose planar relativistic surface-wave oscillators with two-dimensional periodic
gratings. Additional transverse propagating waves emerging on these gratings synchronize …

Experimental demonstration of Smith–Purcell radiation enhancement by frequency multiplication in open cavity

VL Bratman, AE Fedotov, PB Makhalov - Applied Physics Letters, 2011 - pubs.aip.org
The excitation of a low-frequency surface wave can provide coherent high-frequency Smith–
Purcell radiation due to the frequency multiplication effect. The use of an open cavity allows …

Enhancement of Smith–Purcell radiation from cylindrical gratings by quasi-bound states in the continuum

Z Chen, M Jin, L Mao, X Shi, N Bai, X Sun - Optics Letters, 2022 - opg.optica.org
Smith–Purcell radiation (SPR) is an important means of generating terahertz waves, and the
enhancement of SPR is an attractive topic nowadays. Inspired by the phenomenon of …

Proposal for simultaneous two-color Smith–Purcell terahertz radiation through effective surface plasmon excitation

A Tavousi, A Rostami, G Rostami… - IEEE Journal of …, 2016 - ieeexplore.ieee.org
Proximity interaction of a travelling electron beam near the surface of a structured metallic
slab excites effective surface Plasmon at lower frequencies. Due to the existence of a …

Enhanced Smith–Purcell radiation from bound states in the continuum of metallic gratings

Z Chen, L Mao, M Jin, X Shi, N Bai… - Journal of Physics D …, 2022 - iopscience.iop.org
Abstract The enhancement of Smith–Purcell radiation (SPR) produced by electrons moving
closely to a grating is a longstanding topic of interest. Here, we systematically investigate the …

Smith-purcell based terahertz frequency multiplier: three dimensional analysis

A Tavousi, A Rostami, G Rostami… - Photoptics 2015: Revised …, 2016 - Springer
In this paper, we numerically investigate on a three dimensional Smith-Purcell (SP) based
terahertz frequency multiplier. Frequency multiplication procedure is proposed via learning …

Effect of absorption loss on resonance-<? TeX\break?> enhanced Smith–Purcell radiation from metal-plate arrays

Z Chen, L Mao, R Yang, M Jin, N Bai… - Journal of the Optical …, 2022 - opg.optica.org
We systematically investigate the Smith–Purcell radiation emitted by electrons moving along
a metal-plate array. Neglecting absorption loss, we show that Smith–Purcell radiation can be …

3-D analysis of terahertz frequency multiplier excited due to interaction of convection electron beam and surface waves (Smith-Purcell effect)

A Tavousi, A Rostami, G Rostami… - … on Photonics, Optics …, 2015 - ieeexplore.ieee.org
In this paper, we present a three dimensional numerical study on a terahertz frequency
multiplier. The process of frequency multiplication is proposed via study of spontaneous …