Results 61 to 70 of about 49,183 (221)

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Nonlinear Dielectric Metasurfaces for Wavefront Control

Conference on Lasers and Electro-Optics, 2018
We demonstrate Si-based metasurfaces for third-harmonic generation of an arbitrary wavefront. The nonlinear metasurfaces produce phase gradients within a full 0–2π phase range. We achieve 92% diffraction efficiency of the nonlinear wavefront control.
Lei Wang, Sergey Kruk, Kirill Koshelev, Ivan Kravchenko, Barry Luther-Davies, Yuri Kivshar   +5 more
openaire   +2 more sources

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Wavefront control of subcycle vortex pulses via carrier-envelope-phase tailoring. [PDF]

Light Sci Appl, 2023
Lin YC, Midorikawa K, Nabekawa Y.
europepmc   +1 more source

Chronic Disease Monitoring Using Advanced Compliant Materials for Bioelectronics

Advanced Electronic Materials, EarlyView.
Compliant bioelectronic systems enable continuous monitoring of chronic disease through soft, stretchable materials and tissue‐conformal designs that support stable electrophysiological, mechanical, and biochemical sensing. Integration of diverse sensing modalities with thoughtful material selection, device architectures, and advanced fabrication ...
Han Kim, Mabel Bartlett, Liyang Wang, Karl Bates, Mengdi He, Myungbo Kim, Carmel Majidi, Tzahi Cohen‐Karni   +7 more
wiley   +1 more source

Wavefront Control with Nanohole Array-Based Out-of-Plane Metasurfaces. [PDF]

ACS Appl Nano Mater, 2021
Habib M, Issah I, Briukhanova D, Rashed AR, Caglayan H.   +4 more
europepmc   +1 more source

Electric Field Conjugation with the Project 1640 coronagraph

, 2013
The Project 1640 instrument on the 200-inch Hale telescope at Palomar Observatory is a coronagraphic instrument with an integral field spectrograph at the back end, designed to find young, self-luminous planets around nearby stars. To reach the necessary
Baranec, Christoph, Beichman, Charles, Brenner, Douglas, Burruss, Rick, Cady, Eric, Crepp, Justin, Dekany, Richard, Hale, David, Hillenbrand, Lynne, Hinkley, Sasha, Ligon, E. Robert, Lockhart, Thomas, Oppenheimer, Ben R., Parry, Ian, Pueyo, Laurent, Rice, Emily, Roberts, Jennifer, Roberts, Jr., Lewis C., Shao, Michael, Sivaramakrishnan, Anand, Soummer, Remi, Tang, Hong, Truong, Tuan, Vasisht, Gautam, Vescelus, Fred, Wallace, J. Kent, Zhai, Chengxing, Zimmerman, Neil   +27 more
core   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Spectral Response and Wavefront Control of a C-Shaped Fractal Cadmium Telluride/Silicon Carbide Metasurface in the THz Bandgap. [PDF]

Materials (Basel), 2022
Bărar A, Dănilă O.
europepmc   +1 more source