Results 91 to 100 of about 262,950 (171)
Theory of photoferroelectric response in SmC* liquids
, 2012 We are concerned with the modification of liquid crystalline and polar order in SmC* liquids by illumination. In particular we show that non-uniformity due to absorption and also dynamics, can be complex.
Gennes P. G. d. +2 more
core +1 more source
Single and Dual Helical Polarizers for Millimeter-Wave Horn Antennas
IEEE Open Journal of Antennas and PropagationThis paper presents a helical-based polarizer integrated into the aperture of a pyramidal horn antenna, designed to convert linearly polarized radiated fields into either right- or left-handed circular polarization over two distinct bands. The integrated
Maya Al Ajam +2 more
doaj +1 more source
, 2012 We study the reflection of polarized optical pulses from resonant photonic structures formed by periodic, Fibonacci, and gradient sequences of quantum wells.
Poddubny, A. N. +2 more
core +1 more source
NanomaterialsThis work presents a theoretical and numerical investigation of a switchable tri-functional terahertz metamaterial incorporating vanadium dioxide (VO2) and photosensitive silicon.
Gui Jin, Ying Zhu, Haorui Yang, Bin Tang
doaj +1 more source
Focused polarization hologram with arbitrary polarization to a specified polarization conversion
Optics ExpressPolarization devices play a key role in many optical technologies and applications. However, traditional polarization devices are often large and lack integration, and achieving polarization conversion typically requires combining multiple devices, which makes it challenging to realize integrated optical systems.
Jinyu Wang +12 more
openaire +1 more source
How Polarized are Online Conversations About Childhood?
Proceedings of the International AAAI Conference on Web and Social Media2020 through 2023 were unusually tumultuous years for children in the United States, and children's welfare was prominent in political debate. Theories in moral psychology suggest that political parties would treat concerns for children using different moral frames, and that moral conflict might drive substantial polarization in discussions about ...
Green, Breanna E., Hobbs, William R.
openaire +2 more sources
Ultra-Wideband Cross-Polarization Converter Using Metasurface Operating in the X- and K-Band
PhotonicsThe ultra-wideband polarization converters have been of interest to researcher due to their demand in satellite communication and navigation systems. This paper presents an ultra-wideband reflective cross-polarization converter comprising a stair-shaped ...
Muhammad Basir Abbas +6 more
doaj +1 more source
Polarization Evolution of Gamma-Ray Burst Prompt Emission with Bulk Acceleration
The Astrophysical JournalDuring the prompt phase, Poynting-flux-dominated jets undergo acceleration accompanied by magnetic dissipation. By using an outward-propagating thin-shell model, where bulk Lorentz factors Γ increase with radius and the magnetic field strength decay is ...
Qian Zhong +7 more
doaj +1 more source
Experimental Validation of a Multi-Functional Metasurface for 5G and Satellite Communication
IEEE AccessIn this article, a single layer, ultrathin, multiband, and multifunctional reflective polarization converting metasurface (PCMS) is presented that can perform linear to linear (LTL) orthogonally with respect to the incident polarization, also called ...
Hilal Rauf +4 more
doaj +1 more source
EPJ Applied MetamaterialsThis paper presents the design of a transmission-type dual-frequency polarization rotator for linearly polarized electromagnetic wave. The rotator facilitates polarization conversion for incident waves at any azimuth angle ϕ at two specific frequency ...
Chen Linhao +3 more
doaj +1 more source