Fundamental Study on Laser Micro-welding of Glass by Using Spatial Light Modulator

Kazuki Ihoriya, Yasuhiro Okamoto, Akira Okada

Research output: Contribution to conferencePaperpeer-review

Abstract

In micro-joining of glass by using an ultra-short pulsed laser, high intensity of laser beam focusing into a micro-spot inside the glass initiates the nonlinear absorption phenomenon, and micro-area inside the glass can be melted locally. However, it is difficult to achieve high joining strength, since molten area is formed by periodic movement of laser energy absorption point in an optical axis. In this study, the improvement method to control molten area formation by using a spatial light modulator (SLM) was discussed in micro-welding of borosilicate glass by a picosecond pulsed laser. SLM can modulate a wavefront shape of laser beam into the desired pattern image, and it can form different molten area shapes from traditional method.

Original languageEnglish
Pages341-342
Number of pages2
Publication statusPublished - 2021
Externally publishedYes
Event10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021 - Virtual, Online
Duration: Nov 14 2021Nov 18 2021

Conference

Conference10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021
CityVirtual, Online
Period11/14/2111/18/21

Keywords

  • Computer generated hologram (CGH)
  • Glass
  • Micro-welding
  • SLM
  • Ultrashort pulsed laser

ASJC Scopus subject areas

  • Artificial Intelligence
  • Industrial and Manufacturing Engineering
  • Electronic, Optical and Magnetic Materials

Fingerprint

Dive into the research topics of 'Fundamental Study on Laser Micro-welding of Glass by Using Spatial Light Modulator'. Together they form a unique fingerprint.

Cite this