Journal
OPTICS LETTERS
Volume 37, Issue 3, Pages 371-373Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.37.000371
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Funding
- ASEE-Air Force Office of Scientific Research (AFOSR)
- Air Force Office of Scientific Research (AFOSR) [LRIR 10RY04COR]
- National Science Foundation (NSF) [0814103]
- National Aeronautics and Space Administration (NASA) [NNX07 AL52A]
- EPSCoR
- Office Of The Director [1158862] Funding Source: National Science Foundation
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We experimentally demonstrate a wideband near-perfect light absorber in the midwave IR region using a multiplexed plasmonic metal structure. The wideband near-perfect light absorber is made of two different size gold metal squares multiplexed on a thin dielectric spacing layer on top of a thick metal layer in each unit cell. We also fabricate regular nonmultiplexed structure perfect light absorbers. The multiplexed structure IR absorber absorbs more than 98% of the incident light over a much wider spectral band than regular nonmultiplexed structure perfect light absorbers in the midwave IR region. (C) 2012 Optical Society of America
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