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Van der Waals Chromium Telluride Thin Films Prepared by Hybrid Pulsed Laser Deposition With Tunable Magnetism

open access: yesAdvanced Materials Interfaces, EarlyView.
Epitaxial Cr(1+δ)Te2 thin films were synthesized via hybrid Pulsed Laser Deposition (PLD) that combined Molecular Beam Epitaxy (MBE) techniques with PLD. Control of the Cr intercalation, δ, enabled modulation of magnetic anisotropy, Curie temperature, and transport properties.
Pia Henning   +3 more
wiley   +1 more source

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

open access: yesAdvanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet   +13 more
wiley   +1 more source
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Circular polarization detector based on polarization holography

Optics Letters, 2022
We propose and experimentally demonstrate the generation of a circular polarization detector based on planar polarization holography. The detector is designed by constructing the interference field according to the null reconstruction effect. We create multiplexed holograms, which feature the combination of two sets of hologram patterns and operate ...
Yuanying Zhang   +8 more
openaire   +2 more sources

Fiber circular polarizer

Applied Optics, 1983
A fiber circular polarizer, composed of a metal-coated fiber polarizer and a lambda/4 platelet fabricated on a birefringent fiber, has been demonstrated. The lambda/4 platelet was made by cutting a birefringent fiber to an appropriate length. The device structure was designed by stress analysis simulation using a finite element method to set the angle ...
T, Hosaka, K, Okamoto, T, Edahiro
openaire   +2 more sources

Design of 880MHz Dual Circular Polarization and 2.4GHz Circular Polarization Integrated Antenna

2021 9th International Conference on Communications and Broadband Networking, 2021
In this paper, a dual circularly polarized IFA antenna array and a circularly polarized microstrip antenna are introduced. The IFA array is composed of four designed Inverted-F shape antennas. The response frequency range of the IFA array is 840MHz-925MHz, which can be applied to RFID applications in UHF band.
Kongzheng Li   +3 more
openaire   +1 more source

Understanding and measuring circular polarization

IEEE Transactions on Education, 2003
Many modern satellite and terrestrial point-to-point communications systems use circular polarization (CP) wave propagation in order to maximize the polarization efficiency component of the link budget. Therefore, in an undergraduate electromagnetics syllabus, an introduction to the topic of circular polarization is necessary to promote an ...
Bee-Yen Toh   +2 more
openaire   +2 more sources

Circular polarization memory of light

Physical Review E, 2005
Circular polarization memory of light multiply scattered by Mie particles is investigated. The mechanism of randomization of helicity is found, in general, to dominate light circular depolarization by particles of large size or a high refractive index while the mechanism of randomization of direction dominates for small particles of a lower refractive ...
Min, Xu, R R, Alfano
openaire   +2 more sources

A monopole antenna with circular polarization

2014 International Symposium on Antennas and Propagation Conference Proceedings, 2014
A monopole antenna with coplanar-waveguide (CPW) feeding structure is developed for multiple wireless communication system integration. By tuning one of the CPW ground-plane widths can increase the impedance bandwidth. The circular polarization at 1.57 GHz is excited without adding extra design circuits.
Meng-Hong, Shih   +2 more
openaire   +1 more source

A polarization selective surface for circular polarization

1988 IEEE AP-S. International Symposium, Antennas and Propagation, 2003
The authors develop surfaces which will transmit a circularly polarized incident wave of one circularity and reflect a wave of opposite circular polarization. Preliminary results for typical circular polarization selective surfaces are given. These results clearly provide the proof of this principle.
W.V. Tilston, T. Tralman, S.M. Khanna
openaire   +1 more source

Circular polarization in transparent circular patch with defected structure

2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016
This paper presents an optically transparent circular shaped microstrip patch antenna. The transparent circular microstrip antenna comprises a thin sheet of soda lime glass substrate with conductive ITO film coating for radiating patch and ground plane and is feed through a CPW feeding technique. The circular shaped patch is modified by inserting inset
Jayashree P. Shinde   +2 more
openaire   +1 more source

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