Results 281 to 290 of about 2,253,897 (339)
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Dual-polarized ring lasers

IEEE Journal of Quantum Electronics, 1977
Simultaneous laser oscillation of four nondegenerate polarization and propagation direction eigenstates of a single TEM 00 mode was observed in a ring laser cavity. The observed polarization and frequency properties of the ring laser were analyzed in terms of the Jones matrix calculus.
V. Sanders, R. Kiehn
openaire   +1 more source

Dual Polarization Gyro

1982
This paper presents a new fiber optic gyro configuration that is designed to provide independence from the principal bias errors due to the phase modulator. The configuration operates with optimum Π/2 phase shift for gyro sensitivity, 2x increase in scale factor and has been experimentally shown to provide a lOx improvement in immunity to modulator ...
J. G. Hanse, G. L. Mitchell, P. E. Bjork
openaire   +1 more source

Dual-polarization small-angle strong nonreciprocal thermal radiator with Weyl semimetal

Applied Physics Letters
The development of dual-polarization irreversible radiators that can operate without external magnetic field is an arduous task. To avoid the need of strong magnetic field, a dual-polarization nonreciprocal thermal radiator with the introduction of Weyl ...
Jimin Fang   +6 more
semanticscholar   +1 more source

Dual-polarization mode-locked Nd:YAG laser

Optics Letters, 2012
A mode-locked solid-state laser containing a birefringent element is shown to emit synchronously two frequency combs associated to the two polarization eigenstates of the cavity. An analytical model predicts the polarization evolution of the pulse train, which is determined by the adjustable intracavity birefringence. Experiments realized with a Nd:YAG
Thévenin, Jérémie   +2 more
openaire   +2 more sources

All-Around Beam Switched Antenna With Dual Polarization for Drone Communications

IEEE Transactions on Antennas and Propagation, 2020
This communication presents a drone-to-drone adaptive beam switched antenna with 360° beam coverage and dual polarizations. The proposed antenna maintains the all-around beam coverage with high directivity based on 16 concentric planar Yagi-Uda dipole ...
Kwang-Seok Kim   +5 more
semanticscholar   +1 more source

Dual-Polarization Analog 2D Image Processing with Nonlocal Metasurfaces

, 2020
Optical analog computing using metasurfaces has been the subject of numerous studies, aimed at implementing highly efficient and ultrafast image processing in a compact device.
H. Kwon   +4 more
semanticscholar   +1 more source

Spatial modulation with dual-polarized antennas

2015 IEEE International Conference on Communications (ICC), 2015
In this work, multiple-input multiple-output (MIMO) communication employing spatial modulation (SM) is considered with dual-polarized antennas over correlated Rayleigh and Rician channels. A general average bit-error probability (ABEP) upper bounding framework is presented for the dual-polarized SM-MIMO systems.
Zafari, G., Koca, Mutlu, Sari, Hikmet
openaire   +1 more source

Dual‐Layer Metasurface Enhanced Capacity of Polarization Multiplexing

Laser & Photonics Reviews
Polarization is the nature of optics. Exploiting metasurface's polarizations can enhance the multiplexing capacity but face a limited number of channels.
Runzhe Zhang   +9 more
semanticscholar   +1 more source

Mainbelt Asteroids: Dual-Polarization Radar Observations

Science, 1985
Observations of 20 asteroids in the main belt between Mars and Jupiter provide information about the nature of these objects' surfaces at centimeter-to-kilometer scales. At least one asteroid (Pallas) is extremely smooth at centimeter-to-meter scales.
S J, Ostro, D B, Campbell, I I, Shapiro
openaire   +2 more sources

Dual polar spaces

2016
In this chapter, we study dual polar spaces. These are certain point-line geometries that are closely related to polar spaces. We study several properties of these geometries and describe several families. Dual polar spaces are examples of near polygons.
openaire   +1 more source

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