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Template Directed Synthesis of Plasmonic Gold Nanotubes with Tunable IR Absorbance
Published on: April 1, 2013
Polarization-sensitive tunable absorber in visible and near-infrared regimes
Dasol Lee1, Sung Yong Han2, Yeonggyo Jeong3
1Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
Abstract:
A broadband tunable absorber is designed and fabricated. The tunable absorber is comprised of a dielectric-metal-dielectric multilayer and plasmonic grating. A large size of tunable absorber device is fabricated by nano-imprinting method. The experimental results show that over 90% absorption can be achieved within visible and near-infrared regimes. Moreover, the high absorption can be controlled by changing the polarization of incident light. This polarization-sensitive tunable absorber can have practical applications such as high-efficiency polarization detectors and transmissive polarizer.
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