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Proceedings Paper

Modification of conformal-evaporated-film-by-rotation technique to improve uniformity of replicas of nonplanar biotemplates
Author(s): Drew Patrick Pulisfer; Akhlesh Lakhtakia; Raúl José Martín-Palma
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Paper 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.

Paper Details

Date Published: 16 February 2010
PDF: 8 pages
Proc. SPIE 7591, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III, 75910T (16 February 2010); doi: 10.1117/12.840437
Show Author Affiliations
Drew Patrick Pulisfer, The Pennsylvania State Univ. (United States)
Akhlesh Lakhtakia, The Pennsylvania State Univ. (United States)
Raúl José Martín-Palma, Univ. Autónoma de Madrid (Spain)


Published in SPIE Proceedings Vol. 7591:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III
Winston V. Schoenfeld; Jian Jim Wang; Marko Loncar; Thomas J. Suleski, Editor(s)

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