activity
20162026
most citedElectron round lenses with negative spherical aberration by a tightly focused cylindrically polarized light beam

21 citations · 36 across the 4 of their papers we have counts for

collaborators

6 papers

physics.optics2026

Ponderomotive Achromat for Electron Optics: Radially Polarized Annular Focusing and a Round-Lens Corrector Regime

Yuuki Uesugi, Yuichi Kozawa

Ponderomotive electron optics has attracted attention because structured optical fields provide round-lens functionalities, including negative lens power and negative spherical abe…

physics.optics2025

Crossed Ponderomotive Lenses for Spherical Aberration Correction in Electron Optics

Yuuki Uesugi, Yuichi Kozawa

This article evaluates the lens characteristics of a non-rotationally symmetric electron lens based on a ponderomotive potential (i.e., a ponderomotive lens) formed by intersecting…

physics.optics2022★ 15 cited

Properties of electron lenses produced by ponderomotive potential with Bessel and Laguerre-Gaussian beams

Yuuki Uesugi, Yuichi Kozawa, Shunichi Sato

The properties of electron round lenses produced by the ponderomotive potential are investigated in geometrical optics. The potential proportional to the intensity distribution of…

physics.optics2021★ 21 cited

Electron round lenses with negative spherical aberration by a tightly focused cylindrically polarized light beam

Yuuki Uesugi, Yuichi Kozawa, Shunichi Sato

Free electrons moving in an optical standing wave field feel the ponderomotive potential, acting as a refractive-index medium in electron optics. Emerging technologies involving th…

physics.acc-ph2017

Development of optical resonant cavities for laser-Compton scattering

T. Akagi, S. Araki, Y. Honda +12

We have been developing optical resonant cavities for laser-Compton scattering experiment at the Accelerator Test Facility in KEK. The main subject of the R&D is to increase laser…

physics.optics2016

Mode-locked pulse oscillation of a self-resonating enhancement optical cavity

Yuji Hosaka, Yosuke Honda, Atsushi Kosuge +6

A power enhancement optical cavity is a compelling means of realizing a pulsed laser with a high peak power and high repetition frequency, which is not feasible using a simple ampl…