期刊
APPLIED PHYSICS LETTERS
卷 96, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3341309
关键词
optical polymers; photonic crystals
资金
- German Academic Exchange Service (DAAD)
We describe the fabrication and characterization of fully flexible one-dimensional photonic crystals for terahertz frequencies based on alternating layers of a highly refracting polymeric compound and a pure polymer. Due to the high permittivity contrast and low intrinsic material absorption, even a low number of layers yields structures with a pronounced artificial band gap, with a center frequency reflectivity close to unity. Besides the high filter performance, the polymeric compound one-dimensional photonic crystals can be employed for beam shaping by applying a curvature to the mechanically flexible structures, since the spectral characteristics remain nearly unchanged when the structure is flexed.
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