Results 131 to 140 of about 11,379 (160)
Some of the next articles are maybe not open access.
On the degrees of freedom in linear array systems with tri-polarized antennas
IEEE Transactions on Wireless Communications, 2008In this paper, we provide a theoretical, simulation and experimental characterization of the performance of linear arrays of tri-polarized dipole antennas in multiple input multiple output (MIMO) systems in terms of degrees of freedom and channel capacity.
Gaurav Gupta +2 more
openaire +1 more source
Optical coherence engineering in the polarization and spatial degrees of freedom
Journal of Modern Optics, 2019We report a method to synthesize the complete range of arbitrary combinations of coherences independently in both the polarization and spatial degrees of freedom (DoFs) by utilizing energy conservi...
Sethuraj K.R., Bhaskar Kanseri
openaire +1 more source
Generation and manipulation of polarization-twisting dual pulses with a high degree of freedom
Optics Letters, 2020A polarization-twisting dual-pulse (PTDP) system is demonstrated using a modified Michelson interferometer (MI), in which a pellicle beam splitter is inserted into each arm. By tuning the positions of the end mirrors and pellicle beam splitters in the MI, the polarization-twisting frequency, the helicity, and the interval between two pulses can be ...
Hao-Keng Wei +3 more
openaire +2 more sources
Polarization degree of freedom in photorefractive two-wave coupling
Photorefractive Effects, Materials, and Devices, 2003Coupling of two waves with different polarization states in a photorefractive crystal of cubic symmetry is discussed. We show that a proper choice of the polarization states allows linear transformation of small transient phase shift between the coupled waves into intensity modulation of the transmitted light even in the case when the space-charge ...
Alexei A. Kamshilin +2 more
openaire +1 more source
Polarization of periodic degrees of freedom in response to cyclic transformations
Physical Review E, 2018When a classical fluctuating system in contact with a thermal bath undergoes a driven transformation in a finite time, a nonequilibrium distribution is created and an amount of energy is inevitably dissipated on average. It is known that the average dissipation and the extent of the out-of-equilibrium are mutually bounded.
Vroylandt, Hadrien, Frezzato, Diego
openaire +2 more sources
Polarization and Modal Degrees of Freedom for Tight Confinement of Light
Frontiers in Optics 2010/Laser Science XXVI, 2010We describe our work on tight confinement of light using plasmonic structures. Polarization and modal degrees of freedom are shown to have a crucial effect on the nanoscale focusing properties of the optical field.
Uriel Levy +4 more
openaire +1 more source
Higher order polarization mode dispersion compensator with three degrees of freedom
OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001We compare several PMD compensation methods, and find that the simple PMD compensator with a variable polarization controller (PC) and a variable time delay line can compensate for not only first, but also higher order PMD.
Magnus Karlsson +3 more
openaire +1 more source
Deterministic Polarization Entanglement Purification of Cluster State in Multiple Degrees of Freedom
International Journal of Theoretical Physics, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Zhisheng +3 more
openaire +1 more source
On the Number of Degrees of Freedom in Dual-Polarized GNSS Adaptive Arrays
2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), 2018It is known that a dual-polarized adaptive array with N elements has a maximum of 2N-1 degrees of freedom for beamforming. For small global navigation satellite system (GNSS) adaptive arrays, we show that this maximum can be easily achieved if the interferer polarizations are random.
Navid Rezazadeh, Lotfollah Shafai
openaire +1 more source
Physical Review Letters, 2023
Orbital degrees of freedom mediating an interaction between spin and lattice were predicted to raise strong magnetoelectric effect, i.e., to realize an efficient coupling between magnetic and ferroelectric orders. However, the effect of orbital fluctuations has been considered only in a few magnetoelectric materials, as orbital-degeneracy driven Jahn ...
Vilmos Kocsis +7 more
openaire +2 more sources
Orbital degrees of freedom mediating an interaction between spin and lattice were predicted to raise strong magnetoelectric effect, i.e., to realize an efficient coupling between magnetic and ferroelectric orders. However, the effect of orbital fluctuations has been considered only in a few magnetoelectric materials, as orbital-degeneracy driven Jahn ...
Vilmos Kocsis +7 more
openaire +2 more sources