Compaction of polydimethylsiloxane due to nitrogen ion irradiation and its application for creating microlens arrays

G. U.L. Nagy, V. Lavrentiev, I. Bányász, S. Z. Szilasi, V. Havranek, V. Vosecek, R. Huszánk, I. Rajta

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this work the change in the surface topography of polydimethylsiloxane (PDMS) due to irradiation with 10.5 MeV N4 + ion microbeam is investigated. Parallel stripes with different widths and different gaps between the stripes were irradiated. The heavy ion beam induced physical and chemical processes caused shrinkage of the irradiated structures. The degree of compaction, and its relation to the irradiation fluence and pattern was studied by means of atomic force microscopy (AFM). Exploiting the compaction effect, arrays of microlenses with different diameters were designed and fabricated in PDMS. We show that regular microlenses can be produced by the adjustment of their size and irradiation fluence. The focal length of the lenses can be tuned with the diameter of the lens and with the delivered ion fluence.

Original languageEnglish
Pages (from-to)634-638
Number of pages5
JournalThin Solid Films
Volume636
DOIs
Publication statusPublished - Aug 31 2017

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Keywords

  • Ion microbeam
  • Microlens
  • Microprobe
  • Polydimethylsiloxane

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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