Scanning capability and diffraction efficiency of a Cr/Cu/Cr-coated elastomeric grating

Authors

Ma. Laurice Jamero ⋅ PH Department of Physics, Ateneo de Manila University
Paz Victoria Ramos ⋅ PH Department of Physics, Ateneo de Manila University and College of Development Communication and Arts & Sciences, Isabela State University
Jerry T. Barretto ⋅ PH Department of Physics, Ateneo de Manila University
Artoni Kevin Ang ⋅ PH Department of Physics, Ateneo de Manila University
Ivan B. Culaba ⋅ PH Department of Physics, Ateneo de Manila University

Abstract

Two elastomeric gratings were coated with Cr/Cu/Cr of thicknesses 6.8nm/101nm/6.0nm and 13.2nm/101nm/6.1nm. At an applied strain of 7.6% scanning capabilities of 2.8° and 4.2°, respectively, for normal incidence were exhibited by these gratings. The coatings improved the reflectance of an uncoated grating by factors of 47 and 45, respectively, at 0% strain. Diffraction efficiencies decreased marginally over the strain interval used, with P-polarized incident beams providing lower loss in intensity. Results indicate that the thicker Cr/Cu/Cr coating exhibits relatively higher scanning capability but lower diffraction efficiency.

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Issue

2009: Proceedings of the 27th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2009-6A-03

Section

Optics and Plasma Physics

Published

2009-10-28

How to Cite

[1]

ML Jamero, PV Ramos, JT Barretto, AK Ang, and IB Culaba, Scanning capability and diffraction efficiency of a Cr/Cu/Cr-coated elastomeric grating, Proceedings of the Samahang Pisika ng Pilipinas 27, SPP-2009-6A-03 (2009). URL: https://proceedings.spp-online.org/article/view/SPP-2009-6A-03.