Three-dimensional metallic photonic crystals fabricated by soft lithography for midinfrared applications

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2006-01-01
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Lee, Jae-Hwang
Kim, Chang-Hwan
Kim, Yong-Sung
Ho, Kai-Ming
Constant, Kristen
Oh, Cha-Hwan
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Constant, Kristen
Vice President and Chief Information Officer
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Materials Science and Engineering
Materials engineers create new materials and improve existing materials. Everything is limited by the materials that are used to produce it. Materials engineers understand the relationship between the properties of a material and its internal structure — from the macro level down to the atomic level. The better the materials, the better the end result — it’s as simple as that.
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Abstract

We present an efficient method of fabricating freestanding three-dimensional metallic photonic crystals using soft lithography. Low cost and ease of fabrication are achieved through gold sputter deposition on a freestanding woodpile polymer template. We compare experimental results to theoretical calculations for tetragonal and face-centered-tetragonal structures as a function of the number of layers. The photonic crystals behave like full metallic structures with a photonic band edge at a wavelength of 3.5μm. The rejection rates of the structures are about 10dB/layer.

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The following article appeared in Applied Physics Letters 88 (2006): 181112 and may be found at http://dx.doi.org/10.1063/1.2201621.

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Sun Jan 01 00:00:00 UTC 2006
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