• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2022 Fiscal Year Final Research Report

Development of nanometer-resolution laser processing using soft X-ray high-order harmonics

Research Project

  • PDF
Project/Area Number 21K14053
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

Hiroto Motoyama  東京大学, 大学院理学系研究科(理学部), 助教 (00822636)

Project Period (FY) 2021-04-01 – 2023-03-31
Keywords高次高調波 / EUVミラー / EUV
Outline of Final Research Achievements

The aim of this study is to establish nanometer-resolution laser processing using a femtosecond extreme ultraviolet (EUV) laser. EUV laser pulses are generated as high-order harmonics of femtosecond laser pulses, and focused to sub-micron size using a precisely figured Wolter mirror, and the focusing beam irradiated the sample surface. Processing tests were conducted on various metal samples, and atomic force microscopy measurements confirmed that sub-micron processing was achieved.

Free Research Field

EUV光学

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により、フェムト秒EUVレーザーを用いた物質のナノメートル分解能レーザー加工が可能であることが実証された。EUVは、物質への光侵入深さが極めて短いことから、可視光よりも少ないパルスエネルギーで加工を進行させることができる。すなわち、被加工物へと投入される熱量を低減させることができる。加工装置全体を真空中に設置する必要があるものの、熱影響を避ける必要のある微細加工の需要に応えうる技術であり、産業応用への展開が期待される。

URL: 

Published: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi