Selective coherent perfect absorption in metamaterials

Journal Article · Mon Nov 17 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4902330· OSTI ID:22392002

Nie, Guangyu; Shi, Quanchao; Zhu, Zheng ^[1]; Shi, Jinhui ^[1]

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1. Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University, Harbin 150001 (China)

We show multi-band coherent perfect absorption (CPA) in simple bilayered asymmetrically split ring metamaterials. The selectivity of absorption can be accomplished by separately excited electric and magnetic modes in a standing wave formed by two coherent counterpropagating beams. In particular, each CPA can be completely switched on/off by the phase of a second coherent wave. We propose a practical scheme for realizing multi-band coherent perfect absorption of 100% that is allowed to work from microwave to optical frequency.

• OSTI ID: 22392002
• Journal Information: Applied Physics Letters, Vol. 105, Issue 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
LAYERS
METAMATERIALS
MICROWAVE RADIATION
OSCILLATION MODES
PHOTON BEAMS
STANDING WAVES
WAVE PROPAGATION