Diffraction performance of an Au-coated stretchable grating

Authors

  • Raphael Guerrero Department of Physics, Ateneo de Manila University
  • Benjamin Chan Department of Physics, Ateneo de Manila University
  • Christine Tenedero Department of Physics, Ateneo de Manila University
  • Nathaniel Libatique Department of Physics, Ateneo de Manila University
  • Ivan Culaba Department of Physics, Ateneo de Manila University
  • Guggi Kofod Department of Physics, Ateneo de Manila University
  • Gregory Tangonan Department of Physics, Ateneo de Manila University
  • Edwin Yue-Bun Pun Department of Electronic Engineering, City University of Hong Kong
  • Wing-Han Wong Department of Electronic Engineering, City University of Hong Kong

Abstract

A stretchable grating is fabricated from silicone. Diffraction efficiency is improved by coating the grating with a 30 nm layer of Au. Performance of uncoated and coated gratings is consistent with diffraction theory. Angular scanning is demonstrated as a function of applied strain. The Au layer improves diffraction efficiency by an order of magnitude. We find that the optical diffraction provides insight into microscopic features of stretched elastomers. Reflectivity decreases with strain as a result of buckling effects on the metal surface.

SPP 2004 Proceedings Cover

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Published

2004-10-25

Issue

2004: Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress

Section

Plenary Sessions

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All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Diffraction performance of an Au-coated stretchable grating”, Proc. SPP, vol. 22, no. 1, p. SPP-2004-PR-03, Oct. 2004, Accessed: Mar. 25, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2004-PR-03