Effect of pulse repetition rate on silicon wafer modification by four-beam laser interference

L. Zhao, Z. Wang*, W. Li, M. Yu, Z. Zhang, J. Xu, Y. Yu, Z. Weng, S. Li, C. Maple, D. Li, Y. Yue

*Corresponding author for this work

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

Abstract

This paper discusses the effect of pulse repetition rates on silicon wafer modification by four-beam laser interference. In the work, four-beam laser interference was used to pattern single crystal silicon wafers for the fabrication of dots, and different laser pulse repetition rates were applied to the process in the air. The results were obtained from 10 laser exposure pulses with the single laser fluence of 283mJ/cm2, the pulse repetition rates were 1Hz, 5Hz and 10Hz, the laser wavelength was 1064nm and the pulse duration 7-9ns. The results have been observed using a scanning electron microscope (SEM) and optical microscope. They indicate that the laser pulse repetition rate has to be properly selected for the fabrication of the structures of dots using four-beam laser interference.

Original languageEnglish
Title of host publication2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Conference Proceedings
PublisherIEEE Computer Society
Pages104-107
Number of pages4
ISBN (Print)9781479912131
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Suzhou, China
Duration: 26 Aug 201330 Aug 2013

Publication series

Name2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Conference Proceedings

Conference

Conference2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013
Country/TerritoryChina
CitySuzhou
Period26/08/1330/08/13

Keywords

  • laser interference
  • lithography
  • pulse repetition rate
  • silicon wafer modification

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