Results 121 to 130 of about 188,571 (367)

Spatiotemporal Plasma–Mediated Laser Fabrication of Ultrahigh‐Aspect‐Ratio Nanochannel Arrays for Vertical Perovskite Nanowire Semiconductor Devices

Advanced Functional Materials, EarlyView.
A spatiotemporal plasma–mediated laser processing approach is developed to fabricate ultrahigh–aspect ratio nanochannel arrays and corresponding perovskite nanowire arrays within transparent materials for optoelectronics devices. The laser‐fabricated nanochannels serve as templates for controlled perovskite infiltration and crystallization, enabling ...
Taijin Wang, Lingfeng Wang, Feng Liu, Gary J. Cheng   +3 more
wiley   +1 more source

Auxetic Systems Fabricated Using Mycelia-Based Composites

Journal of Manufacturing and Materials Processing
In an era of increasingly problematic global waste management, innovative materials can hold the key to a circular economy. Within such a context, this work aimed at manufacturing, potentially for the first time, auxetic material (i.e., materials with a ...
Claudia Cadinu, Ruben Gatt, Renald Blundell, Joseph N. Grima, Pierre-Sandre Farrugia   +4 more
doaj   +1 more source

Software Calibration of a Frequency-Diverse, Multistatic, Computational Imaging System

IEEE Access, 2016
We demonstrate a technique for calibrating a frequency-diverse, multistatic, computational imaging system. A frequency-diverse aperture enables an image to be reconstructed primarily from a set of scattered field measurements taken over a band of ...
Okan Yurduseven, Jonah N. Gollub, Kenneth P. Trofatter, Daniel L. Marks, Alec Rose, David R. Smith   +5 more
doaj   +1 more source

Reverse Doppler Effect of Sound

, 2009
We report observation of reverse Doppler effect in a double negative acoustic metamaterial. The metamaterial exhibited negative phase velocity and positive group velocity.
C. Caloz, Choon Mahn Park, Chul Koo Kim, P. Markoš, Sam Hyeon Lee, Yong Mun Seo, Zhi Guo Wang   +6 more
core   +1 more source

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

Plasmonic nanoparticle monomers and dimers: From nano-antennas to chiral metamaterials

, 2011
We review the basic physics behind light interaction with plasmonic nanoparticles. The theoretical foundations of light scattering on one metallic particle (a plasmonic monomer) and two interacting particles (a plasmonic dimer) are systematically ...
A. Abrikosov, A. Funston, A. Kinkhabwala, A. Potts, A. Taflove, A. Yaghjian, C. Alzar, C. Balanis, C. Bohren, C. Kremers, C. Kremers, C. Simovski, C.-T. Tai, D. Felbacq, D. N. Chigrin, D. Schurig, D. Smith, D. Smith, E. Narimanov, E. Plum, F. Bilotti, G. Bachelier, G. Borzdov, G. Hanson, G. Milton, G. Raschke, H. Atwater, I. Romero, J. Baena, J. Bladel, J. Hesthaven, J. Jin, J. Volakis, J. Weeber, J.P. Kottmann, K. Stannigel, L. Rogobete, L.M. Barkovsky, M. Karam, M. Kuwata-Gonokami, M. McCall, M. Noginov, M. Yurkin, M. Yurkin, O. Keller, P. Bharadwaj, P. Mühlschlegel, P. Sheng, R. Singh, R.V. Craster, S. Bozhevolnyi, S. Bozhevolnyi, S. Harris, S. Lee, S. V. Zhukovsky, S. Volkov, S. Zhang, S. Zhukovsky, S.V. Zhukovsky, T. Mackay, T. Taminiau, U. Leonhardt, V. Fedotov, V. Giannini, V. Myroshnychenko, V. Myroshnychenko, V. Myroshnychenko, V. Shalaev, W. Cai, Z.G. Dong   +69 more
core   +1 more source

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Invited Article: All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

APL Photonics, 2016
The exponential growth of telecommunications bandwidth will require next generation optical networks, where multiple spatial information channels will be transmitted in parallel.
Maria Papaioannou, Eric Plum, João Valente, Edward T. F. Rogers, Nikolay I. Zheludev   +4 more
doaj   +1 more source

Purcell Enhancement of Parametric Luminescence: Bright and Broadband Nonlinear Light Emission in Metamaterials [PDF]

, 2017
Single-photon and correlated two-photon sources are important elements for optical information systems. Nonlinear downconversion light sources are robust and stable emitters of single photons and entangled photon pairs. However, the rate of downconverted
Atwater, Harry A., Davoyan, Artur R.
core   +1 more source