Results 21 to 30 of about 1,799,934 (343)
Coherent control of Snell's law at metasurfaces [PDF]
, 2014 It was recently demonstrated that the well-known Snell's law must be corrected for phase gradient metasurfaces to account for their spatially varying phase, leading to normal and anomalous transmission and reflection of light on such metasurfaces.
Fang, Xu +5 more
core +1 more source
Autonomous division and integration of anonymous agents by using interaction between oscillators
Nihon Kikai Gakkai ronbunshu, 2017 In this paper, we proposed a system in which robot swarms autonomously divide or merge themselves according to phase gradients emerged by coupled oscillators.
Shunya YAMASHITA +2 more
doaj +1 more source
Understanding of Wood Anomalies in Metallic Gratings From Phase Gradient Metasurfaces
Frontiers in Materials, 2022 Phase-gradient metasurfaces (PGMs) have provided unprecedented opportunities for manipulating light. Here, we reexamine ordinary and well-studied subwavelength metallic gratings (OMGs) from the concept of PGMs to provide more insight into their ...
Jiaqi Quan +4 more
doaj +1 more source
Range dependent phase gradient autofocus [PDF]
IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174), 1998 The Phase Gradient Autofocus (PGA) algorithm has been widely used in spotlight synthetic aperture radar (SAR) to remove motion-induced blurs in the images. The PGA algorithm has been proven to be a superior autofocus method. PGA assumes a narrow beam, which is valid for most SAR systems.
D.G. Thompson +4 more
openaire +1 more source
Inside-out growth or inside-out quenching? clues from colour gradients of local galaxies [PDF]
, 2017 We constrain the spatial gradient of star formation history within galaxies using the colour gradients in NUV-u and u-i for a local spatially-resolved galaxy sample.
Blanton, Michael +3 more
core +3 more sources
Remote Sensing, 2022 Phase unwrapping (PU) is a key program in data processing in the interferometric synthetic aperture radar (InSAR) technique, and its accuracy directly affects the quality of final SAR data products.
Yansuo Zhang +5 more
doaj +1 more source
Adaptive synchronization in delay-coupled networks of Stuart-Landau oscillators [PDF]
, 2011 We consider networks of delay-coupled Stuart-Landau oscillators. In these systems, the coupling phase has been found to be a crucial control parameter. By proper choice of this parameter one can switch between different synchronous oscillatory states of ...
A. L. Fradkov +10 more
core +2 more sources
Diffusion phase-imaging in anisotropic media using non-linear gradients for diffusion encoding.
PLoS ONE, 2023 Diffusion MRI classically uses gradient fields that vary linearly in space to encode the diffusion of water molecules in the signal magnitude by tempering its intensity.
Pamela Wochner +4 more
doaj +2 more sources
Remote Sensing, 2014 Interferometric Synthetic Aperture Radar (InSAR) and Differential Interferometric Synthetic Aperture Radar (DInSAR) have shown numerous applications for subsidence monitoring.
Donglie Liu +6 more
doaj +1 more source
Reconfigurable High-Efficiency metadevice using Kirigami-Inspired phase gradient metasurfaces
Results in Physics, 2023 Kirigami-inspired metasurface has attracted great attention in electromagnetic (EM) wave manipulations, due to its unprecedented and tailorable structural transformations via mechanical approaches.
Huiling Luo +6 more
doaj +1 more source