Far-field flat lens based on multilayered metal- dielectric structure
نویسندگان
چکیده
منابع مشابه
Planar metal/dielectric single-periodic multilayer ultraviolet flat lens
In 1968, Veselago predicted that a thin film composed of a material with a negative refractive index would act as a flat lens [Sov. Phys. Usp. 10, 509 (1968)]. Hyperbolic metamaterials have been designed that show negative refraction, but the condition of an isotropic refractive index n −1 required to realize a diffraction-limited focus cannot be realized using the hyperbolic dispersion. Here, ...
متن کاملFar-infrared absorber based on standing-wave resonances in metal-dielectric-metal cavity.
Thin-film resonant absorbers for the far-IR spectral range were fabricated, characterized, and modeled. The 3-μm-thick structure comprises a periodic surface array of metal squares, a dielectric spacer and a metallic ground plane. Up to 95% absorption for the fundamental band at ~53.5μm wavelength (5.6 THz) is achieved experimentally. Absorption bands are independent of the structure period and...
متن کاملEfficient Thermal-Light Interconversions Based on Optical Topological Transition in the Metal-Dielectric Multilayered Metamaterials.
Metal-dielectric multilayered metamaterials are proposed to work as wideband spectral-selective emitters/absorbers due to the topological change in isofrequency contour around the epsilon-near-zero point. By setting the transition at the border between the visible and IR ranges, the metal-dielectric multilayered metamaterials become good absorbers/emitters for visible light and good reflectors ...
متن کاملNonlocal effective parameters of multilayered metal-dielectric metamaterials
A. V. Chebykin,1 A. A. Orlov,1 C. R. Simovski,1,2 Yu. S. Kivshar,1,3 and P. A. Belov1,4 1National Research University of Information Technologies, Mechanics, and Optics (ITMO), St. Petersburg 197101, Russia 2School of Electric and Electronic Engineers, Aalto University, Aalto 00076, Finland 3Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Ca...
متن کاملNonlocal effective medium model for multilayered metal-dielectric metamaterials
A. V. Chebykin,1 A. A. Orlov,1 A. V. Vozianova,1 S. I. Maslovski,1,2 Yu. S. Kivshar,1,3 and P. A. Belov1,4 1National Research University of Information Technologies, Mechanics and Optics, St. Petersburg 197101, Russia 2Departamento de Engenharia Electrotécnica, Instituto de Telecomunicações, Universidade de Coimbra, Pólo II, P-3030-290 Coimbra, Portugal 3Nonlinear Physics Center and Center for ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advanced Electromagnetics
سال: 2014
ISSN: 2119-0275
DOI: 10.7716/aem.v3i2.242