|
|
|
|
|
Victor V. Kotlyar, Anton G. Nalimov and Alexey A. Kovalev
We consider sharp focusing of an axial superposition of two optical vortices with identical topological charges, but different amplitudes and circular polarizations of different signs. The ratio of the amplitudes of the two beams is a parameter. When thi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xuan Viet Linh Nguyen, Tony Gerges, Pascal Bevilacqua, Jean-Marc Duchamp, Philippe Benech, Jacques Verdier, Philippe Lombard, Pangsui Usifu Linge, Fabien Mieyeville, Michel Cabrera and Bruno Allard
Harvesting of ambient radio-frequency energy is largely covered in the literature. The RF energy harvester is considered most of the time as a standalone board. There is an interest to add the RF harvesting function on an already-designed object. Polymer...
ver más
|
|
|
|
|
|
|
|
|
|
|
T. Xu, Y. Lu, G. He and X. Yang
Advanced applications require transmit-array lenses featuring low profiles, covering 360° phase modulation, and, potentially, polarization conversion. Subwavelength metamaterial elements with multilayers manipulate electromagnetic waves with predesigned ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Di Ji, Zhitao Hu, Nan Ye, Fufei Pang and Yingxiong Song
At 2 µm wavelengths (149.9 THz), hollow-core photonics band gap fibers have higher light power damage thresholds, stable polarization states, and lower losses of 0.1 dB/km. Additionally, a thulium-doped fiber amplifier can provide a gain of >35 dB. Speci...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rui Tang, Rui He, Sangmo Kim and Chung Wung Bark
Over the past decades, ferroelectric photovoltaic (FE-PV) systems, which use a homogenous ferroelectric material as a light-absorbing layer, have been studied using ferroelectric oxides. The PV activity of materials can be enhanced by adjusting the bandg...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ziheng Zhang, Tong Li, Xiaofei Jiao, Guofeng Song and Yun Xu
Optics and Lasers, Integrated Ultraviolet Nanophotonics, Meta-optics.
|
|
|
|
|
|
|
|
|
|
|
Changfeng Fu, Zhijie Sun, Lianfu Han, Chao Liu, Tao Sun and Paul K. Chu
A dual-broadband and high-efficiency reflective linear polarization converter based on an anisotropic metasurface is presented. The device consists of two symmetrical, double-slotted metallic split-rings and one criss-cross structure, a dielectric layer,...
ver más
|
|
|
|
|
|
|
|
|
|
|
Linh Duc Tam Ho DOI: 10.26459/hueuni-jtt.v128i2B.5332
We propose a new design of a 2x2 optical chip for switching optical modes based on silicon material. Input lights at fundamental mode of transverse electric (TE) polarization can be selected at the output by appropriately controlling a 180-degree butterf...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hehong Zhang, Xiaofeng Zhang, Xuhui Zhao, Yuming Tang and Yu Zuo
A chemical conversion coating on 5052 aluminum alloy was prepared by using K2ZrF6 and K2TiF6 as the main salts, KMnO4 as the oxidant and NaF as the accelerant. The surface morphology, structure and composition were analyzed by SEM, EDS, FT–IR and X...
ver más
|
|
|
|
|
|
|
|
|
|
|
Chao-Kuang Cheng, Jeng-Yu Lin, Kai-Chen Huang, Tsung-Kuang Yeh and Chien-Kuo Hsieh
This paper reports architecturally designed nanocomposites synthesized by hybridizing the two-dimensional (2D) nanostructure of molybdenum disulfide (MoS2) nanosheet (NS)-supported Pt nanoparticles (PtNPs) as counter electrodes (CEs) for dye-sensitized s...
ver más
|
|
|
|
|
|