Results 71 to 80 of about 40,022 (295)
Recent Advances in Dielectric Chiral Metasurfaces
Advanced Physics ResearchNatural chiral materials commonly possess weak chirality. Strong chirality can be achieved using chiral metasurfaces or metamaterials consisting of atom‐like subwavelength units. Chiral metasurfaces, as a surface layer of subwavelength units, have gained
Zhipeng Hu +6 more
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Conditional Generative Adversarial Networks for Inverse Design of Multifunctional Metasurfaces
Advanced Photonics Research, 2022 Electromagnetic (EM) metasurfaces can present a versatile platform for realization of multiple diverse EM functionalities with incident wave frequency, polarization, or propagation direction through appropriate choice of unit cells structures.
Mehdi Kiani +2 more
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Advanced Functional Materials, EarlyView.A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang +5 more
wiley +1 more source
Waveform-Dependent Absorbing Metasurfaces [PDF]
Physical Review Letters, 2013 We present the first use of a waveform-dependent absorbing metasurface for high-power pulsed surface currents. The new type of nonlinear metasurface, composed of circuit elements including diodes, is capable of storing high power pulse energy to dissipate it between pulses, while allowing propagation of small signals.
Wakatsuchi, Hiroki +3 more
openaire +6 more sources
Spin-Selective Transmission and Devisable Chirality in Two-Layer Metasurfaces
Scientific Reports, 2017 Chirality is a nearly ubiquitous natural phenomenon. Its minute presence in most naturally occurring materials makes it incredibly difficult to detect.
Zhancheng Li +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Modular diffractive deep neural network metasurfaces encode and reconstruct holograms across layer combinations and wavelengths, enabling secure, multifunctional operation. Each layer acts independently yet composes jointly, yielding up to m(2N −1) channels for m wavelengths and N layers.
Cherry Park +4 more
wiley +1 more source
A true metasurface antenna [PDF]
2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016 AbstractWe present a true metasurface antenna based on electrically-small resonators. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Unlike conventional array antennas where the distance between adjacent antennas is half wavelength to reduce mutual coupling between adjacent antennas, here the distance ...
Mohamed El Badawe +2 more
openaire +2 more sources
Liquid crystal-integrated metasurfaces for an active photonic platform
Opto-Electronic AdvancesMetasurfaces have opened the door to next-generation optical devices due to their ability to dramatically modulate electromagnetic waves at will using periodically arranged nanostructures.
Dohyun Kang +6 more
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Design for Highly Efficient Nanometagratings and Theory of Extreme Subdiffraction Photon Control
Advanced Photonics Research, 2022 Conventional planar metasurfaces are always much larger than the wavelength level. Previous studies on extreme wavefront control based on superoscillation suggest a fundamental tradeoff between the size and efficiency of diffraction‐based metasurfaces ...
Yan-ming Gao, Xiang-yang Yu
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Chiral SURMOFs for Vibrational Circular Dichroism: Multiscale Modeling and Experimental Insights
Advanced Functional Materials, EarlyView.The use of solid‐state vibrational circular dichroism (VCD) for MOFs is still somewhat unexplored, and in this work, it is shown that chiral surface‐anchored MOFs (SURMOFs) grown on CaF2 provide an excellent platform for VCD. Experimental results are validated through multiscale modeling, showing strong agreement across multiple spectroscopic ...
Ana C. Fingolo +9 more
wiley +1 more source