Angular Distribution of Lower Room Modes

Perception of Room Modes In

Envelope Modes of Beams with Angular Momentum*

For a particle beam propagating in an alternating gradient focusing system, envelope equations are often employed to describe the evolution of the beam radii in the two directions transverse to the direction of propagation, and aligned with the principle axes of the alternating gradient system. When the beams have zero net angular momentum and when the alternating gradient focusing is approxima...

Study on Generation of Higher Order Orbital Angular Momentum Modes and Parameters Affecting the Vortex

In this manuscript, higher-order Orbital Angular Momentum (OAM) modes and parameters affecting vortex in the radiation pattern have been studied. A uniform circular array resonating at 10 GHz frequency is formed using eight identical rectangular patch antennas. Three uniform circular arrays are analyzed, simulated, and fabricated for OAM modes 0, +1, and -1 respectively. The higher-order OAM mo...

Discrete-symmetry vortices as angular Bloch modes.

The most general form for symmetric modes of nonlinear discrete-symmetry systems with nonlinearity depending on the modulus of the field is presented. Vortex solutions are demonstrated to behave as Bloch modes characterized by an angular Bloch momentum associated to a periodic variable, periodicity being fixed by the order of discrete point-symmetry of the system. The concept of angular Bloch m...

Accelerated rotation with orbital angular momentum modes

Christian Schulze,1 Filippus S. Roux,2 Angela Dudley,2 Ronald Rop,3 Michael Duparré,1 and Andrew Forbes2,4,* 1Institute of Applied Optics, Friedrich Schiller University, Fröbelstieg 1, 07743 Jena, Germany 2Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, South Africa 3Department of Physics, Egerton University, P.O. Box 536, Egerton 20115, Kenya 4School of Physics, Un...