Modification of conformal-evaporated-film-by-rotation technique to improve uniformity of replicas of nonplanar biotemplates

Drew Patrick Pulisfer, Akhlesh Lakhtakia, Raúl José Martín-Palma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We modified the conformal-evaporated-film-by-rotation (CEFR) technique to improve the uniformity of nominally ≲ 1000-nm-thick films deposited on nonplanar biological templates to replicate surface features. The biotemplates selected are eyes harvested from Phormia regina, a common species of blow fly which has large compound eyes. Bulk chalcogenide glass with nominal composition Ge28Sb12Se60 was used as the source material for all coatings. The modified CEFR technique introduced a second degree of freedom in manipulating the biotemplate with respect to the average direction of the vapor flux. We were thus able to tailor the motion of the platform holding the biotemplate to improve the uniformity of the coatings. Cross-sectional images of the coated biotemplates obtained using microtomy and scanning electron microscopy confirmed the expected improvement.

Original languageEnglish (US)
Title of host publicationAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics III
DOIs
StatePublished - May 3 2010
EventAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics III - San Francisco, CA, United States
Duration: Jan 25 2010Jan 27 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7591
ISSN (Print)0277-786X

Other

OtherAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics III
CountryUnited States
CitySan Francisco, CA
Period1/25/101/27/10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Pulisfer, D. P., Lakhtakia, A., & Martín-Palma, R. J. (2010). Modification of conformal-evaporated-film-by-rotation technique to improve uniformity of replicas of nonplanar biotemplates. In Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III [75910T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7591). https://doi.org/10.1117/12.840437