Form-birefringence structure fabrication in GaAs by use of SU-8 as a dry-etching mask

  • Lin Pang*
  • , Maziar Nezhad
  • , Uriel Levy
  • , Chia Ho Tsai
  • , Yeshaiahu Fainman
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A thin layer of a SU-8 submicrometer pattern produced by holographic lithography was directly used as the dry-etching mask in a chemically assisted ion-beam-etching system. With optimized etching parameters, etching selectivity of 7:1 was achieved together with a smooth vertical profile. As an application, a half-wavelength retardation plate for a 1.55-μm wavelength was produced and evaluated.

Original languageEnglish
Pages (from-to)2377-2381
Number of pages5
JournalApplied Optics
Volume44
Issue number12
DOIs
StatePublished - 20 Apr 2005
Externally publishedYes

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