Results 91 to 100 of about 15,311 (291)

Enhancement of inductance along metallic mesh wires in three-dimensional quasi-isotropic metamaterials using high-ε dielectric particles for impedance-matching with free space

EPJ Applied Metamaterials, 2019
In this paper, we consider cube-shaped unit cells including high-ε dielectric cubes under magnetic dipole-like resonance placed at the center and metallic mesh wires for negative permittivity to construct three-dimensional quasi-isotropic metamaterials ...
Yamaguchi Takuya, Ishiyama Takumi, Ueda Tetsuya, Itoh Tatsuo   +3 more
doaj   +1 more source

Observation and Uses of Position-Space Bloch Oscillations in an Ultracold Gas

, 2018
We report the observation and characterization of position-space Bloch oscillations using cold atoms in a tilted optical lattice. While momentum-space Bloch oscillations are a common feature of optical lattice experiments, the real-space center-of-mass ...
Singh, Kevin, Rajagopal, Shankari V, Meier, Torsten, Kurt M. Fujiwara, Shankari V. Rajagopal, Ruwan Senaratne, Zachary A. Geiger, Driben, Rodislav, Senaratne, Ruwan, Weld, David M, David M. Weld, Fujiwara, Kurt M, Lipatov, Mikhail, Kevin Singh, Mikhail Lipatov, Rodislav Driben, Torsten Meier, Vladimir V. Konotop, Konotop, Vladimir V, Geiger, Zachary A, Shimasaki, Toshihiko, Toshihiko Shimasaki   +21 more
core   +1 more source

Programmable Elastic Wave Control Via Mechanical‐Acoustic Interaction in Bistable Metamaterials

Advanced Science, EarlyView.
A mechanically programmable metamaterial based on mechanical‐acoustic interaction enables reconfigurable elastic wave control through bistable state switching. Spatial encoding of peak and valley states tunes band structures and transmission, achieving low‐frequency vibration suppression, waveguiding, and energy localization.
Yuanyuan Li, Yonghua Yu, Chuanqing Chen, Rui Xu, Yulong He, Xin Li, Ming‐Hui Lu, Yan‐Feng Chen   +7 more
wiley   +1 more source

Products of Composition Operators and Volterra-type Integral Operators from Logarithmic Bloch Spaces into Bloch-type Spaces

, 2012
[[abstract]]Let ' be an analytic self-map of the unit disk D, H(D) the space of analytic functions on D and g 2 H(D). The boundedness and compact- ness of the products of composition operators and Volterra-type integral operators from the logarithmic ...
Yan-Yan Yu, Yong-Min Liu
core  

Multiplication operators on the Bloch space of bounded homogeneous domains

, 2022
In this paper, we study the multiplication operators on the Bloch space of a bounded homogeneous domain in $\mathbb{C}^n$. Specifically, we characterize the bounded and the compact multiplication operators, establish estimates on the operator norm, and ...
Allen, Robert F., Colonna, Flavia
core   +1 more source

Femtosecond‐Laser Nanocavitation Regenerates SERS‐Active Plasmonic Nanogaps for Longitudinal Molecular Sensing at Biointerfaces

Advanced Science, EarlyView.
A regenerative molecular sensing platform that co‐localizes surface‐enhanced Raman spectroscopy (SERS) sensing and nanocavitation‐based actuation. Femtosecond‐laser triggered nanocavitation produces thermomechanical forces to locally regenerate SERS‐active nanogaps in protein‐rich biofluids while preserving optical performance.
Aditya Garg, Ze Zong, Meitong Nie, Stacie E. Deaver, Elizabeth M. Van Order, Elieser Mejia, Peter Vikesland, Erin S. Gloag, Wei Zhou   +8 more
wiley   +1 more source

Phase-sensitive Fourier space imaging of optical Bloch modes [PDF]

, 2008
We present a phase-shifting holography method in k space that allows us to investigate the phase and amplitude of optical Bloch waves. The method is based on a Fourier space imaging technique combined with a Mach-Zehnder interferometer.
Houdre, R., Krauss, T. F., Kotlyar, M. V., Le Thomas, N.   +3 more
core   +2 more sources

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled‐Resonator‐Induced Transparency

Advanced Science, EarlyView.
A programmable coupled‐resonator‐induced transparency (CRIT) platform is proposed, generalizing classical electromagnetically induced transparency (EIT) via a spinor representation. By utilizing dual‐channel gauge fields and universal unitary operations, this architecture enables dynamically engineered, reconfigurable slow‐light bands on a silicon ...
Seungkyun Park, Beomjoon Chae, Hyungchul Park, Sunkyu Yu, Xianji Piao, Namkyoo Park   +5 more
wiley   +1 more source

Ag Nanowire‐Integrated MoS2/ZnO Heterojunctions for Highly Efficient Photogenerated Charge Transfer

Advanced Electronic Materials, Volume 11, Issue 6, May 2025.
A versatile strategy is reported for fabricating multi‐dimensional heterojunctions with significantly improved charge transfer capability. By integrating Ag nanowires with a MoS2/ZnO heterojunction, a fourfold increase in surface photovoltage is achieved, reaching 200 mV under visible light illumination.
Anh Thi Nguyen, Jungyoon Cho, Malkeshkumar Patel, Duc Anh Vu, Jungeun Song, Dongseok Suh, Ambrose Seo, Joondong Kim, Dong‐Wook Kim   +8 more
wiley   +1 more source

Norm and Essential Norm of an Integral-Type Operator from the Dirichlet Space to the Bloch-Type Space on the Unit Ball

Abstract and Applied Analysis, 2010
Operator norm and essential norm of an integral-type operator, recently introduced by this author, from the Dirichlet space to the Bloch-type space on the unit ball in ℂ𝑛 are calculated here.
Stevo Stević
doaj   +1 more source