Results 121 to 130 of about 141,776 (244)

Magnetic Response of Metamaterials at 100 Terahertz

Science, 2004
An array of single nonmagnetic metallic split rings can be used to implement a magnetic resonance, which arises from an inductor-capacitor circuit (LC) resonance, at 100-terahertz frequency. The excitation of the LC resonance in the normal-incidence geometry used in our experiments occurs through the coupling of the electric field of the incident light
Costas M. Soukoulis, Costas M. Soukoulis, Stefan Linden, Martin Wegener, Jiangfeng Zhou, C. Enkrich, Thomas Koschny, Thomas Koschny   +7 more
openaire   +5 more sources

Efficient Large‐Area Graphene p‐n Junction Terahertz Receivers on an Integrated Optical Platform

Small Methods, EarlyView.
An antenna‐integrated graphene Salisbury screen (AgSS) p‐n junction is engineered to detect radiation at 2.8 THz with room‐temperature noise equivalent powers < 300 pWHz−1/2, response time < 5 ns and a power dynamic range larger than four orders of magnitude.
Leonardo Viti, Vladimir Pushkarev, Syed Muhammad Abouzar Sarfraz, Gaetano Scamarcio, Miriam S. Vitiello   +4 more
wiley   +1 more source

Metasurface‐Assisted Optical Transparency of a Continuous Metal Film

Small Structures, EarlyView.
Herein, a general strategy for realizing transparent conductors by sandwiching a continuous metal film between two metasurfaces is presented. A coupled‐mode theory model is developed to reveal the underlying physics and identify the optimal conditions.
Yifei Wang, Jinyu Guo, Yifang Chen, Qiong He, Lei Zhou   +4 more
wiley   +1 more source

Investigation of graphene assisted tunable terahertz metamaterials absorber

, 2016
By using the graphene-SiO2-Si-dielectrics-metallic ground plane (GSiO2SiDM) structures, we investigate the tunable properties of graphene metamaterials (MMs) absorbers in the terahertz region, including the effects of operation frequency, Fermi level ...
Xiaoyong He, Xu Zhong, F. Lin, W. Shi
semanticscholar   +1 more source

Frequency‐Dependent Demethylation of Cancer DNAs by High‐Power Terahertz Radiation

Advanced Photonics Research, Volume 6, Issue 7, July 2025.
Effective demethylation of cancer DNA is successfully demonstrated by resonant irradiation with high‐power terahertz (THz) waves at the 10 mW level, combined with metamaterial‐based THz filters. The dependence of spectral filtering on demethylation indicates that the resonant frequency of 1.6 THz of cancer DNAs plays a crucial role in reducing the ...
Chaeyoon Kim, Seung Won Jin, Seong Cheol Lee, Donghak Oh, Soojeong Baek, Bumki Min, Hee‐Jin Yang, Joo‐Hiuk Son, Fabian Rotermund   +8 more
wiley   +1 more source

Detection of microorganisms using terahertz metamaterials

Scientific Reports, 2014
Microorganisms such as fungi and bacteria cause many human diseases and therefore rapid and accurate identification of these substances is essential for effective treatment and prevention of further infections. In particular, contemporary microbial detection technique is limited by the low detection speed which usually extends over a couple of days ...
Park, S. J., Hong, J. T., Choi, S. J., Kim, H. S., Park, W. K., Han, S. T., Park, J. Y., Lee, S., Kim, D. S., Ahn, Y. H.   +9 more
openaire   +4 more sources

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

Advanced Photonics Research, Volume 6, Issue 7, July 2025.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang, Chengwei Fang, Md Osman Ali, Xiaojun Chen, Safa Alghadi, Shuo Li, Jiayuan He, Sithamparanathan Kandeepan   +7 more
wiley   +1 more source

Wireless Technologies for Wearable Electronics: A Review

Advanced Electronic Materials, Volume 11, Issue 10, July 2025.
This review discusses recent advancements in wireless wearable electronics, focusing on communication technologies and power solutions. It covers key design considerations, explores wireless protocols from short‐ to long‐range networks, and examines powering methods such as integrated sources and energy harvesting.
Choong Yeon Kim, Juhyun Lee, Eun Young Jeong, Yeji Jang, Heesoo Kim, Bohyung Choi, Donggi Han, Youngjun Oh, Jae‐Woong Jeong   +8 more
wiley   +1 more source

Toroidal resonances in terahertz metamaterials [PDF]

, 2019
Toroidal modes are unique type of electromagnetic excitations that have characteristic features different from the conventional electric and magnetic multipoles. At terahertz regime, metamaterial allows an effective way to introduce toroidal excitations, as they give flexibility in tailoring loss channels which are important for modulation, sensing ...
openaire   +4 more sources

Terahertz Metamaterials on Flexible Polypropylene Substrate

Plasmonics, 2014
This work was supported by the Spanish MICINN under contracts CONSOLIDER EMET CSD2008-00066 and TEC2011-28664-C02-02 and by the Universitat Politecnica de Valencia under the program INNOVA 2011.
Ortuño Molinero, Rubén, García Meca, Carlos, Martínez Abietar, Alejandro José   +2 more
openaire   +3 more sources