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Updated: Feb 14, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
Published on: July 8, 2013
Wavelength-Selective Three-Dimensional Thermal Emitters via Imprint Lithography and Conformal Metallization
Shengkai Li1, Amir Kazemi-Moridani1, Yiliang Zhou1
1Department of Polymer Science and Engineering , University of Massachusetts Amherst , 120 Governors Drive , Amherst , Massachusetts 01003 , United States.
Abstract:
Metallic photonic crystals (MPCs) exhibit wavelength-selective thermal emission enhancements and are promising thermal optical devices for various applications. Here, we report a scalable fabrication strategy for MPCs suitable for high-temperature applications. Well-defined double-layer titanium dioxide (TiO2) woodpile structures are fabricated using a layer-by-layer soft-imprint method with TiO2 nanoparticle ink dispersions, and the structures are subsequently coated with high purity, conformal gold films via reactive deposition from supercritical carbon dioxide. The resulting gold-coated woodpile structures are effective MPCs and exhibit emissivity enhancements at a selective wavelength. Gold coatings deposited using a cold-wall reactor are found to be smoother and result in a greater thermal emission enhancement compared to those deposited using a hot-wall reactor.
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