High Power Wideband Gyrotron Backward Wave Oscillator<? format?> Operating towards the Terahertz Region

W He, CR Donaldson, L Zhang, K Ronald… - Physical review …, 2013 - APS
Experimental results are presented of the first successful gyrotron backward wave
oscillator<? format?>(gyro-BWO) with continuous frequency tuning near the low-terahertz …

[HTML][HTML] Modulational instability in two-dimensional dissipative open Bose-Einstein condensates with mixed helicoidal and Rashba-Dresselhaus spin-orbit couplings

CB Tabi, P Otlaadisa, TC Kofané - Physics Letters A, 2023 - Elsevier
The letter proposes a modified set of coupled two-dimensional (2D) cubic complex Ginzburg-
Landau (CGL) equations that include Rashba and Dresselhaus as well as helicoidal spin …

Generation of matter waves in Bose-Bose mixtures with helicoidal spin-orbit coupling

CB Tabi, S Veni, TC Kofané - Physical Review A, 2021 - APS
The paper studies the modulational instability (MI), both theoretically and numerically, of the
helicoidal spin-orbit coupled Bose-Bose mixture. An expression of the MI growth rate is …

[HTML][HTML] Modulation instability of two-dimensional Bose-Einstein condensates with helicoidal and a mixture of Rashba-Dresselhaus spin-orbit couplings

CB Tabi, P Otlaadisa, TC Kofané - Physics Letters A, 2022 - Elsevier
The modulational instability (MI) process is exclusively studied in a two-component Bose-
Einstein condensate (BEC) which includes Rashba-Dresselhaus (RD) spin-orbit (SO) and …

Multi-mode coupling wave theory for helically corrugated waveguide

L Zhang, W He, K Ronald, ADR Phelps… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
Helically corrugated waveguide has been used in various applications such as gyro-
backward wave oscillators, gyro-traveling wave amplifier and microwave pulse compressor …

Breakdown insensitive acceleration regime in a metamaterial accelerating structure

D Merenich, B Leung, G Rijal, X Lu, S Doran… - … Review Accelerators and …, 2024 - APS
A new regime in radiofrequency (rf) breakdown, named the breakdown insensitive
acceleration regime (BIAR), was observed in an 11.7 GHz metamaterial structure for …

Dispersion of helically corrugated waveguides: Analytical, numerical, and experimental study

G Burt, SV Samsonov, K Ronald, GG Denisov… - Physical Review E …, 2004 - APS
Helically corrugated waveguides have recently been studied for use in various applications
such as interaction regions in gyrotron traveling-wave tubes and gyrotron backward-wave …

Experimental study of microwave pulse compression using a five-fold helically corrugated waveguide

L Zhang, SV Mishakin, W He… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
This paper presents the experimental study of microwave pulse compression using a five-
fold helically corrugated waveguide. In the experiment, the maximum power compression …

Challenge of search for cosmological dark components with high-intensity lasers and beyond

K Homma, O Tesileanu, Y Nakamiya, Y Kirita… - The European Physical …, 2023 - Springer
We introduce an approach to search for low-mass pseudo Nambu–Goldstone bosons as
candidates for dark components in the Universe via stimulated resonant photon scattering …

Modulational instability of Bose-Einstein condensates with helicoidal spin-orbit coupling

XX Li, RJ Cheng, AX Zhang, JK Xue - Physical Review E, 2019 - APS
We theoretically study the modulation instability (MI) of the two-component helicoidal spin-
orbit coupled Bose-Einstein condensates (BECs). The effects of spin-orbit coupling, the …