Note: Three-dimensional stereolithography for millimeter wave and terahertz applications

A Macor, E De Rijk, S Alberti, T Goodman… - Review of Scientific …, 2012 - pubs.aip.org
Metal-coated polymers shaped by 3D stereolithography are introduced as a new
manufacturing method for passive components for millimeter to terahertz electromagnetic …

An alternative method to zero-padded DFT

C Donciu, M Temneanu - Measurement, 2015 - Elsevier
Zero-padding method is usually used to increase the number of points in the DFT and
consequently to improve the DFT's approximation of the DTFT. This way the picket fence …

Planar near-field phase retrieval using GPUs for accurate THz far-field prediction

G Junkin - IEEE transactions on antennas and propagation, 2012 - ieeexplore.ieee.org
With a view to using Phase Retrieval to accurately predict Terahertz antenna far-field from
near-field intensity measurements, this paper reports on three fundamental advances that …

Infrared measurements of the RF output of 170-GHz/2-MW coaxial cavity gyrotron and its phase retrieval analysis

S Jawla, JP Hogge, S Alberti… - … on Plasma Science, 2009 - ieeexplore.ieee.org
We report the experimental results of the infrared measurements of output RF beam of the
European 2-MW 170-GHz coaxial cavity gyrotron for ITER. The output beam profile is …

Experimental results for a pulsed 110/124.5-GHz megawatt gyrotron

DS Tax, BY Rock, BJ Fox, SK Jawla… - … on Plasma Science, 2014 - ieeexplore.ieee.org
We report experimental results on a two frequency gyrotron, operating in the TE 22, 6 mode
at 110 GHz and the TE 24, 7 mode at 124.5 GHz. The gyrotron uses the same electron gun …

Electron cyclotron power source system for ITER

SL Rao, A Sharma, M Kushwah, P Kalaria… - Fusion Science and …, 2014 - Taylor & Francis
Electron cyclotron (EC) heating and current drive is a well-established auxiliary heating
mechanism for tokamak plasmas, which is also effective in assisting plasma breakdown and …

Output System for a 170-GHz/1.5-MW Continuous Wave Gyrotron Operating in the TE28,12 Mode

RK Dhakad, GS Baghel, MV Kartikeyan… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In this paper, design aspects of the output system of a 170-GHz/1.5-MW continuous wave
gyrotron operating in the TE 28, 12 mode is presented for testing the latest version of …

Detailed characterization of a frequency-tunable 260GHz gyrotron oscillator planned for DNP/NMR spectroscopy

JP Hogge, F Braunmueller, S Alberti… - … Waves (IRMMW-THz …, 2013 - ieeexplore.ieee.org
Detailed characterization of a frequency-tunable 260GHz gyrotron oscillator planned for
DNP/NMR spectroscopy Page 1 Abstract—The detailed characterization of a modular 260GHz …

Investigations on the Output System of 300-GHz Gyrotrons

D Mondal, S Yuvaraj, M Rawat… - … on Plasma Science, 2024 - ieeexplore.ieee.org
This article presents the comprehensive design studies of the output systems consisting of
nonlinear taper (NLT), quasi-optical launcher (QOL), RF window, and matching optics unit …

Generation and validation of topological charges of high-power gyrotron orbital angular momentum beams from phase retrieval algorithm

A Sawant, D Yu, D Kim, MS Choe… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
We present a phase coefficient optimization technique for determining the vortex charge of a
high-power orbital angular momentum beam. This high-power vortex beam is generated by …