Numerical Simulation of a Hollow-Core Woodpile-Based Mode Launcher for Dielectric Laser Accelerators
نویسندگان
چکیده
Hollow core microstructures powered by infrared lasers represent a new and promising area of accelerator research, where advanced concepts electromagnetism must be used to satisfy multiple requirements. Here, we present the design dielectric electromagnetic band gap (EBG) mode launcher–converter for high-power coupling in laser accelerators (DLAs). The device is based on silicon woodpile structure, it composed two perpendicularly coupled hollow-core waveguides—a transverse electric (TE)-like waveguide (excited from power) magnetic (TM)-like (accelerating) waveguide—in analogy with TE10-to-TM01 converters radio frequency (RF) linear (LINACs). structure numerically designed optimized, showing insertion losses (IL) <0.5 dB efficient conversion operating bandwidth. wavelength 5 μm, corresponding ≈60 THz, spectral region solid-state continuous-wave (CW) exist are actively developed. presented coupler shows an interaction impedance order 10 kΩ, high power handling efficiency.
منابع مشابه
Beam Dynamics Studies into Grating-based Dielectric Laser-driven Accelerators*
Dielectric laser-driven accelerators (DLAs) based on gratings confine an electromagnetic field induced by a drive laser into a narrow vacuum channel where electrons travel and are accelerated. This can provide an alternative acceleration scheme compared to conventional RF cavity accelerators. Due to the achievable high accelerating gradient of up to several GV/m this could pave the way for futu...
متن کاملa study on thermodynamic models for simulation of 1,3 butadiene purification columns
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Analysis of mode structure in hollow dielectric waveguide fibers.
In this paper, we analyze the electromagnetic mode structure of an OmniGuide fiber-a hollow dielectric waveguide in which light is confined by a large index-contrast omnidirectional dielectric mirror. In particular, we find that the modes in an OmniGuide fiber are similar to those in a hollow metallic waveguide in their symmetries, cutoff frequencies, and dispersion relations. We show that the ...
متن کاملPassively mode-locked fiber laser based on a hollow-core photonic crystal fiber filled with few-layered graphene oxide solution.
We demonstrate a nanosecond-pulse erbium-doped fiber laser that is passively mode locked by a hollow-core photonic crystal fiber filled with few-layered graphene oxide solution. Owing to the good solution processing capability of few-layered graphene oxide, which can be filled into the core of a hollow-core photonic crystal fiber through a selective hole filling process, a graphene saturable ab...
متن کاملNumerical simulation of laser beam welding of Ti6Al4V sheet
This paper was aimed to report the 3D finite element analysis simulation of laser welding process of Ti6Al4V 1.7 mm sheets in butt joint in order to predict the temperature distribution, hardness, and weld geometry. The butt-joint welds were made using CO2 laser with the maximum power of 2.2 kW in the continuous wave mode. A part of the experimental work was carried out to verify the weld geome...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app12052609