Results 211 to 220 of about 145,078 (261)

Nonreciprocal Frequency Domain Beam Splitter

Physical Review Letters, 2021
The canonical beam splitter-a fundamental building block of quantum optical systems-is a reciprocal element. It operates on forward- and backward-propagating modes in the same way, regardless of direction. The concept of nonreciprocal quantum photonic operations, by contrast, could be used to transform quantum states in a momentum- and direction ...
Nils T. Otterstrom, Shai Gertler, Eric A. Kittlaus, Michael Gehl, Andrew L. Starbuck, Christina M. Dallo, Andrew T. Pomerene, Douglas C. Trotter, Peter T. Rakich, Paul S. Davids, Anthony L. Lentine   +10 more
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Bending of Beams in Superelasticity Domain

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2000
AbstractThe paper deals with bending of beams made of shape memory material (SMM). The research is focused on the modelling of a bending process in the superelasticity region, which w one of the characteristics of SMM. On the basis of a chosen physical model, a computer program has been set up for numerical modelling of the stress‐strain and ...
Kosel, Franc, Bundara, Borut
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Beam shaping in the nonparaxial domain of diffractive optics

Applied Optics, 1997
We address the problem of shaping the radiant intensity distribution of a highly nonparaxial coherent field by means of a diffractive element located in the plane of the beam waist. To be capable of wide-angle energy redistribution the element must necessarily contain wavelength-scale transverse features, and consequently it must be designed on the ...
M, Kuittinen, P, Vahimaa, M, Honkanen, J, Turunen   +3 more
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Optical implementation of a time-domain beam former

Optics Letters, 1986
We report on an optical implementation of a time-domain beam former that uses a low-cost, low-power, twodimensional spatial light modulator (liquid-crystal television) to generate eight beams from eight sensors. The optical architecture can be classified as a vector-matrix multiplier.
P B, Rolsma, R D, Griffin, J N, Lee
openaire   +2 more sources

Gratings in the resonance domain as polarizing beam splitters

Optics Letters, 1995
Polarization-selective gratings in the resonance domain of diffractive optics are calculated by use of rigorous electromagnetic diffraction theory. The polarizing effects are attained by special surface-relief structures, and the profile of binary surface-relief gratings is optimized with a nonlinear Newton algorithm to design diffractive polarizing ...
M, Schmitz, R, Brauer, O, Bryngdahl
openaire   +2 more sources

Domains of Attraction of a Forced Beam by Interpolated Mapping

Journal of Applied Mechanics, 1994
A nonlinear dissipative dynamical system can often have multiple attractors. In this case it is important to study the global behavior of the system by determining the global domain of attraction of each attractor. In this paper we study the global behavior of a forced beam with two-mode interaction.
Lee, W. K., Ghang, M. R.
openaire   +2 more sources

Beam Domain Channel Modeling and Prediction for UAV Communications

IEEE Transactions on Wireless Communications
Hengtai Chang, El-Hadi Aggoune, Chen Huang   +2 more
exaly   +2 more sources

Adaptive beam forming in time-domain

2011 International Conference on Electromagnetics in Advanced Applications, 2011
This paper introduces a new technique for adaptive beam forming in time domain of an array of slot antennas with finite widths. The time dependent field is computed using the closed-form expressions for the radiated EM fields. The radiated energy is focused at a desired space and time and minimized in other regions to satisfy the requirements of a ...
P. Kadlec, M. Stumpf, Z. Raida
openaire   +1 more source

Polarization Domain Wall Solitons with Counterpropagating Laser Beams

CLEO/Europe Conference on Lasers and Electro-Optics, 1998
The coupling between two intense laser beams in a nonlinear dielectric leads to a host of physical effects. In particular, the interaction between the polarization states of two counterpropagating ligth beams may generate polarization domain wall (PDW7) solitons [1].
S. Pitois, G. Millot, WABNITZ, Stefan
openaire   +5 more sources

Beam Summation Theory for Waves in Fluctuating Media. Part I: The Beam Frame and the Beam-Domain Scattering Matrix

IEEE Transactions on Antennas and Propagation, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Matan Leibovich, Ehud Heyman
openaire   +2 more sources