Analysis of radiation of antennas with a phase‐gradient partially reflective surface

2015 ◽  
Vol 9 (12) ◽  
pp. 1323-1330
Author(s):  
Hamid Moghadas ◽  
Mojgan Daneshmand ◽  
Pedram Mousavi
Keyword(s):  
Phase Gradient ◽  
Reflective Surface

MEMS-Tunable Half Phase Gradient Partially Reflective Surface for Beam-Shaping

2015 ◽  
Vol 63 (1) ◽  
pp. 369-373 ◽  
Author(s):  
Hamid Moghadas ◽  
Mojgan Daneshmand ◽  
Pedram Mousavi
Keyword(s):  
Beam Shaping ◽  
Phase Gradient ◽  
Reflective Surface

Detection of reflective surface defects based on phase measuring deflectometry

2020 ◽  
Vol 35 (12) ◽  
pp. 1315-1322
Author(s):  
Qian TAO ◽  
◽  
Zhi-feng ZHOU ◽  
Ming-hui WU ◽  
Li-rui WANG
Keyword(s):  
Surface Defects ◽  
Reflective Surface

A Modified Phase Gradient Autofocus (PGA) Algorithm for Airborne/Stationary Bistatic SAR Imaging

2014 ◽  
Vol 35 (6) ◽  
pp. 1456-1463
Author(s):  
Song Zhou ◽  
Min Bao ◽  
Shi-chao Chen ◽  
Meng-dao Xing ◽  
Zheng Bao
Keyword(s):  
Phase Gradient ◽  
Bistatic Sar ◽  
Sar Imaging

Phase unwrapping based on the phase‐gradient‐jump connections

2017 ◽  
Vol 53 (10) ◽  
pp. 683-685 ◽  
Author(s):  
Tao Zhang ◽  
Xiaolei Lv ◽  
Jiang Qian ◽  
Jun Hong ◽  
Ye Yun
Keyword(s):  
Phase Unwrapping ◽  
Phase Gradient

scholarly journals Wavefront shaping and modulation with resonant electro-optic phase gradient metasurfaces

2021 ◽  
Vol 118 (7) ◽  
pp. 071104
Author(s):  
D. Barton ◽  
M. Lawrence ◽  
J. Dionne
Keyword(s):  
Phase Gradient ◽  
Electro Optic ◽  
Wavefront Shaping

scholarly journals On-chip trans-dimensional plasmonic router

Nanophotonics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 3357-3365 ◽  
Author(s):  
Shaohua Dong ◽  
Qing Zhang ◽  
Guangtao Cao ◽  
Jincheng Ni ◽  
Ting Shi ◽  
...  
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Incident Angle ◽  
Reciprocal Lattice ◽  
Plasmonic Waveguide ◽  
Optical Diffraction ◽  
Local Dynamic ◽  
Phase Gradient ◽  
On Chip ◽  
Plasmon Polaritons

AbstractPlasmons, as emerging optical diffraction-unlimited information carriers, promise the high-capacity, high-speed, and integrated photonic chips. The on-chip precise manipulations of plasmon in an arbitrary platform, whether two-dimensional (2D) or one-dimensional (1D), appears demanding but non-trivial. Here, we proposed a meta-wall, consisting of specifically designed meta-atoms, that allows the high-efficiency transformation of propagating plasmon polaritons from 2D platforms to 1D plasmonic waveguides, forming the trans-dimensional plasmonic routers. The mechanism to compensate the momentum transformation in the router can be traced via a local dynamic phase gradient of the meta-atom and reciprocal lattice vector. To demonstrate such a scheme, a directional router based on phase-gradient meta-wall is designed to couple 2D SPP to a 1D plasmonic waveguide, while a unidirectional router based on grating metawall is designed to route 2D SPP to the arbitrarily desired direction along the 1D plasmonic waveguide by changing the incident angle of 2D SPP. The on-chip routers of trans-dimensional SPP demonstrated here provide a flexible tool to manipulate propagation of surface plasmon polaritons (SPPs) and may pave the way for designing integrated plasmonic network and devices.

Where did the Mirror Go? The Text of Plato [?] Alcibiades I 133c1-6

Elenchos ◽  
2015 ◽  
Vol 36 (2) ◽  
pp. 361-372 ◽  
Author(s):  
Harold Tarrant
Keyword(s):  
Late Antiquity ◽  
Single Letter ◽  
Reflective Surface ◽  
True Meaning ◽  
Intertextual Allusion

AbstractAt Alcibiades I, 133b-c, the reader expects, but does not according to the MSS find, the return of the mirror-motif that had supposedly explained the true meaning of the Delphic injunction. Hence it remains unclear why anything viewed within the soul should act in any way that resembles a mirror. I argue that the substitution of a single letter in one word, about which the manuscripts and modern scholars in any case disagree, can restore the necessary reference to a reflective surface, though not specifically to a mirror, since the term for a mirror could only be applied to sight. A failure to understand the underlying intertextual allusion to Cratylus 408c had resulted in a safe but unsatisfactory substitution by Late Antiquity, and other modifications followed thereafter in an effort to give meaning to the text.

Sign in / Sign up

Export Citation Format

Share Document