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Beyond Good Vibrations:New Insights into Metamaterial Magic（图）
Vibrations New Insights Metamaterial Magic
2017/11/23
If invisibility cloaks and other gee-whiz apps are ever to move from science fiction to science fact, we’ll need to know more about how these weird metamaterials actually work. Michigan Tech researche...
Chiral Metamaterial Produces Record Optical Shift Under Incremental Power Modulation
Chiral Metamaterial Produces Record Optical Shift Under Incremental Power Modulation
2017/3/14
Georgia Institute of Technology researchers have demonstrated an optical metamaterial whose chiroptical properties in the nonlinear regime produce a significant spectral shift with power levels in the...
Penn Engineers Overcome a Hurdle in Growing a Revolutionary Optical Metamaterial
Penn Engineers Revolutionary Optical Metamaterial
2017/3/14
When John Crocker, a professor of chemical and biomolecular engineering in the University of Pennsylvania’s School of Engineering and Applied Science was a graduate student, his advisor...
'Lossless' metamaterial could boost efficiency of lasers and other light-based devices
Lossless metamaterial lasers other light-based devices
2017/3/14
Engineers at the University of California San Diego have developed a material that could reduce signal losses in photonic devices. The advance has the potential to boost the efficiency of various ligh...
Metamaterial device allows chameleon-like behavior in the infrared
Metamaterial device chameleon-like infrared
2016/11/4
An electric current will not only heat a hybrid metamaterial, but will also trigger it to change state and fade into the background like a chameleon in what may be the proof-of-concept of the first co...
Transmission-Line Metamaterial Design of an Embedded Line Source in a Ground Recess
Antenna radiation patterns metamaterials periodic structures transmission lines
2014/12/8
A transmission-line metamaterial design of a material-embedded electric line source radiating inside a ground recess is investigated. The media embedding the recessed line source are designed such tha...
Consideration of enhancement of thermal rectification using metamaterial models
Heat transfer Near-field Metamaterials Radiative Thermal rectification
2015/8/6
We present a systematic study to highlight some of the fundamental physics that governs metamaterial based electromagnetic thermal rectifiers. In such thermal rectifiers, the rectification arises from...
Genetic approach helps design broadband metamaterial
Genetic approach helps design broadband metamaterial
2014/5/13
UNIVERSITY PARK, Pa. -- A specially formed material that can provide custom broadband absorption in the infrared can be identified and manufactured using "genetic algorithms," according to Penn State ...
Upper Bound on the Modal Material Loss Rate in Plasmonic and Metamaterial Systems
Modal Material Loss Rate Plasmonic Metamaterial Systems
2015/8/7
A better understanding of optical loss in plasmonic and metamaterial systems is of increasing importance for both basic and applied research in a broad range of topics including sensors, antennas,opti...
Metamaterial band theory:fundamentals & applications
metamaterials photonic band theory plasmonics sensing active metamaterials
2015/8/7
Remarkable progress has been made over the past decade in controlling light propagation and absorption in compact devices using nanophotonic structures and metamaterials. From sensing and modulation,t...
Analytical Study of Sub-Wavelength Imaging by Uniaxial Epsilon-Near-Zero Metamaterial Slabs
Analytical Study of Sub-Wavelength Uniaxial Epsilon-Near-Zero Metamaterial Slabs Optics
2012/5/29
We show that the two-dimensional Green's function of a uniaxial (with possibly tilted optical axis) epsilon-near-zero metamaterial slab, of interest for sub-wavelength imaging, can be calculated analy...
Active Negative Index Metamaterial Powered by an Electron Beam
Active Negative Index Metamaterial Electron Beam Optics
2012/5/17
A novel active negative index metamaterial that derives its gain from an electron beam is intro- duced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a period...
We demonstrate metamaterial metal-based bolometers, which take advantage of resonant absorption in that a spectral and/or polarization filter can be built into the bolometer. Our proof-of-principle go...
Transverse Electromagnetic Modes in Aperture Waveguides Containing a Metamaterial with Extreme Anisotropy
Transverse Electromagnetic Modes Aperture Waveguides Containing Metamaterial Extreme Anisotropy
2015/8/10
We use metamaterials with extreme anisotropy to solve the fundamental problem of light transport in deep subwavelength apertures. By filling a simply connected aperture with an anisotropic mediu...
Construction of Chiral Metamaterial with a Helix Array
metamaterial helix chiral negative refractive index
2011/8/11
Abstract: Here we report the designing of chiral metamaterial with metallic helix array. The effective electric and magnetic dipoles, which originate from the induced surface electric current upon ill...