Results 41 to 50 of about 67,297 (277)

Tunable Characteristics of Wedge Plasmonic Waveguide with Thin Metallic Layers

Photonics
In this study, we propose a mechanism for tuning the modal characteristics of a wedge plasmonic waveguide. The wedge plasmonic waveguide is composed of a thin metallic layer deposited on a wedge-shaped dielectric waveguide.
Ha Trinh Thi, Duong Nguyen Van, Hieu Dang Van, Hoang Manh Chu   +3 more
doaj   +1 more source

Observation of enhanced transmission for s-polarized light through a subwavelength slit

, 2009
Enhanced optical transmission (EOT) through subwavelength apertures is usually obtained for p-polarized light. The present study experimentally investigates EOT for s-polarized light.
A. Yu. Nikitin, Dunbar, F. J. García-Vidal, García-Vidal, García-Vidal, Grupp, Guillaumée, Ishi, Janssen, Kuznetsov, L. A. Dunbar, L. Martín-Moreno, Lezec, M. Guillaumée, M. J. K. Klein, Moreno, Nikitin, Pendry, R. Eckert, R. P. Stanley, Schouten, Takakura, V. Spassov, Yu   +23 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Calculation of the wave spectra of shielded waveguides with arbitrary dielectric filling using the modified Galerkin method and the partial domain method

Физика волновых процессов и радиотехнические системы, 2020
We consider a method for calculating the natural wave spectra of round and rectangular shielded waveguides with arbitrary dielectric filling, which is a modification of the Galerkin method and based on the representation of the wave fields of the guiding
S.A. Kapustin, N.A. Novoselova, S.B. Raevskii, A.A. Titarenko   +3 more
doaj   +1 more source

Ultra-broadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab [PDF]

, 2011
We present an ultra broadband thin-film infrared absorber made of saw-toothed anisotropic metamaterial. Absorbtivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half maximum is ...
Avitzour Y., Cai W., Chen H. T., Chen H. T., Choy T. C., Cui Y., Cui Y., Dregely D., He J., Huang L., Hyungjin Ma, Jiang T., Jiang Z. H., Jun Xu, Kin Hung Fung, Landy N. I., Li H., Liu N., Liu X., Liu X., Moharam M. G., Nicholas X. Fang, Palik E. D., Sailing He, Schurig D., Sergeant N. P., Shen X., Sun J., Tang T., Tao H., Tsakmakidis K. L., Wang B., Wen Q. Y., Yang J., Yanxia Cui, Ye Y., Yi Jin, Yu Z., Yu Z., Yu Z., Zhang X., Zhu J.   +41 more
core   +2 more sources

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

Design and analysis antennas of transverse polarization on the dielectric waveguide

EURASIP Journal on Wireless Communications and Networking
This paper addresses the issue of constructing millimeter band antennas using dielectric waveguide structures. A new type of linear antenna, incorporating metal pins on the side walls of the grooved dielectric waveguide, is proposed for generating ...
Mohamed N. Shaaban, Aydar R. Nasybullin, Yuri E. Sedelnikov   +2 more
doaj   +1 more source

POLARIZATION SELECTOR ON WAVEGUIDES PARTIALLY FILLED BY DIELECTRIC

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
In this article, a polarization selector, which based on waveguides partially filled by dielectric has been developed and investigated. An analysis of the designs of polarization selectors on empty waveguides was carried out. The developed design of the
Vitaly Pochernyaev, Nataliia Syvkova, Mariia Mahomedova   +2 more
doaj   +1 more source

All dielectric metamaterial loaded tunable plasmonic waveguide

AIP Advances, 2017
In this article, a 2D plasmonic waveguide loaded with all dielectric anisotropic metamaterial, consisting of alternative layers of Si-SiO2, has been theoretically proposed and numerically analyzed. Main characteristics of waveguide i.e.
Abid Anjum Sifat, Ayed Al Sayem, M. Mahmudul Hasan Sajeeb   +2 more
doaj   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

Advanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata, Aayush Kumar Jaiswal, Ari Hokkanen, Hannes Orelma, Tadahisa Iwata   +4 more
wiley   +1 more source