3 May 2021 Effect of flexural stress on fabrication and optical properties of a composite photonic material
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Abstract

We spin coated thin films of poly(methyl) methacrylate (PMMA) polymer doped with 2-[7-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-3H-indolium iodide (HITC) laser dye onto microscope cover slides under applied flexural stress and found the patterns of scattering (milkiness) to correlate with the spatial variation of the pressure pattern. We further deposited thin gold films on top of the HITC:PMMA films and measured highly unusual transmission spectra of Au collected from strongly deformed (stressed) local areas of the sample. These spectra, which strongly deferred from those of plain Au films deposited onto unstressed glass, could not be described by simple, e.g., Maxwell Garnett, effective media models, calling for a thorough theoretical study.

© 2021 Society of Photo-Optical Instrumentation Engineers (SPIE) 1934-2608/2021/$28.00 © 2021 SPIE
Devon Courtwright, Sangeeta Rout, Jakeem Adrien, and Mikhail A. Noginov "Effect of flexural stress on fabrication and optical properties of a composite photonic material," Journal of Nanophotonics 15(2), 026002 (3 May 2021). https://doi.org/10.1117/1.JNP.15.026002
Received: 27 December 2020; Accepted: 14 April 2021; Published: 3 May 2021
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KEYWORDS
Gold

Composites

Optical properties

Reflection

Glasses

Polymethylmethacrylate

Thin films

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