Results 71 to 80 of about 49,183 (221)

Spectral control of broadband light through random media by wavefront shaping

, 2012
A random medium can serve as a controllable arbitrary spectral filter with spectral resolution determined by the inverse of the interaction time of the light in the medium.
Aulbach, Conkey, Eran Small, Fink, Freund, Freund, Katz, Katz, Kohlgraf-Owens, Lemoult, Lerosey, McCabe, Mosk, Ori Katz, Popoff, Popoff, Small, Svensson, van Beijnum, Vellekoop, Vellekoop, Yaqoob, Yaron Silberberg, Yefeng Guan   +23 more
core   +1 more source

Electroencephalogram‐Driven Recognition of Parkinson's Disease Through a Mycelium‐Inspired Memristive Reservoir Computing Circuit

Advanced Intelligent Systems, EarlyView.
This work presents a bio‐inspired computing framework for Parkinson's disease analog recognition using electroencephalogram signals. Temporally encoded EEG features stimulate a mycelium‐inspired memristive reservoir, where disease‐related patterns emerge through physical spatiotemporal dynamics.
Ioannis K. Chatzipaschalis, Ioannis Tompris, Pantelis Fraidakis, Iosif‐Angelos Fyrigos, Antonio Rubio, Georgios Ch. Sirakoulis   +5 more
wiley   +1 more source

Metasurface wavefront control for high-performance user-natural augmented reality waveguide glasses. [PDF]

Sci Rep, 2022
Boo H, Lee YS, Yang H, Matthews B, Lee TG, Wong CW.   +5 more
europepmc   +1 more source

Wavefront error sensing for LDR [PDF]

Wavefront sensing is a significant aspect of the LDR control problem and requires attention at an early stage of the control system definition and design.
Glavich, T. A., Tubbs, Eldred F.
core   +1 more source

Overview of Advanced LIGO Adaptive Optics

, 2016
This is an overview of the adaptive optics used in Advanced LIGO (aLIGO), known as the thermal compensation system (TCS). The thermal compensation system was designed to minimize thermally-induced spatial distortions in the interferometer optical modes ...
Abbott, Benjamin, Arain, Muzammil A., Brooks, Aidan F., Ciani, Giacomo, Cole, Ayodele, Grabeel, Greg, Guido, Chris, Gustafson, Eric, Heintze, Matthew, Heptonstall, Alastair, Jacobson, Mindy, Kim, Won, King, Eleanor, Lynch, Alexander, Mailand, Ken, Mueller, Guido, Munch, Jesper, O'Connor, Stephen, Ottaway, David, Sannibale, Virginio, Shao, Zhenhua, Smith, Michael, Veitch, Peter, Vo, Thomas, Vorvick, Cheryl, Willems, Phil   +25 more
core   +1 more source

Multifunctional Metasurfaces for Bridging Terahertz Waves in Free Space and Waveguides

Advanced Physics Research, EarlyView.
A multifunctional terahertz metasurface capable of simultaneous orthogonal polarization conversion and phase modulation is integrated onto a dielectric slab waveguide, thereby enabling efficient free‐space‐to‐guided‐wave coupling. By implementing tailored phase gradients on the metasurface, we demonstrate the formation of a focused spot within the ...
Jinhui Lu, Yushan Chen, Min Zhang, Hong Su, Ling Li, Huawei Liang   +5 more
wiley   +1 more source

Nanoscale Thermal Transport in Bi2(Te, Se)3 Thermoelectric Material Using Pulsed STEM

Advanced Physics Research, EarlyView.
The pulsed‐STEM technique enables simultaneous acquisition of crystallographic, compositional, and thermal transport information within a single experiment. In anisotropic Bi2(Te, Se)3, phase‐delay imaging visualizes directional heat flow and interfacial resistance at the nanoscale, offering a new approach to understanding and designing thermoelectric ...
Hyunyong Cho, Hieu Duy Nguyen, Isamu Yamada, Koji Kimoto, Takao Mori, Naoyuki Kawamoto   +5 more
wiley   +1 more source

Metalens‐Enabled Double‐Helix Point Spread Function for Multifunctional Imaging

Advanced Physics Research, EarlyView.
A single metalens is employed to generate a double‐helix point spread function (DH‐PSF). At the design wavelength, the PSF rotation angle varies linearly with depth, while the lobe spacing follows an inverse dependence on axial position. At a fixed depth, the lobe spacing further exhibits a linear dependence on wavelength due to dispersion.
Xuanyu Wu, Xuanguang Wu, Liang Zhou, Bingyan Wei, Sheng Liu, Dandan Wen, Yi Zhang, Jianlin Zhao, Peng Li   +8 more
wiley   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source