Light-particle Emission at High Angular Momentum
نویسنده
چکیده
منابع مشابه
Transfer of orbital angular momentum to an optically trapped low-index particle
We demonstrate the transfer of orbital angular momentum from a light beam to a trapped low-index particle. The particle is trapped in a dark annular region of a high-order Bessel beam and rotates around the beam axis due to scattering from the helical wave fronts of the light beam. A general theoretical geometrical optics model is developed that, applied to our specific situation, corroborates ...
متن کاملOn the " Initial " Angular Momentum of Galaxies
Spherical density profiles and specific angular momentum profiles of Dark Matter halos found in cosmological N–body simulations have been measured extensively. The distribution of the total angular momentum of dark matter halos is also used routinely in semi–analytic modeling of the formation of disk galaxies. However, it is unclear whether the initial (i.e. at the time the halo is assembled) a...
متن کاملMechanical equivalence of spin and orbital angular momentum of light: an optical spanner.
We use a Laguerre-Gaussian laser mode within an optical tweezers arrangement to demonstrate the transfer of the orbital angular momentum of a laser mode to a trapped particle. The particle is optically confined in three dimensions and can be made to rotate; thus the apparatus is an optical spanner. We show that the spin angular momentum of +/-?per photon associated with circularly polarized lig...
متن کاملBrane Decay of a (4+n)-Dimensional Rotating Black Hole. III: spin-1/2 particles
In this work, we have continued the study of the Hawking radiation on the brane from a higher-dimensional rotating black hole by investigating the emission of fermionic modes. A comprehensive analysis is performed that leads to the particle, power and angular momentum emission rates, and sheds light on their dependence on fundamental parameters of the theory, such as the spacetime dimension and...
متن کاملExtreme Ultraviolet Fractional Orbital Angular Momentum Beams from High Harmonic Generation
We investigate theoretically the generation of extreme-ultraviolet (EUV) beams carrying fractional orbital angular momentum. To this end, we drive high-order harmonic generation with infrared conical refraction (CR) beams. We show that the high-order harmonic beams emitted in the EUV/soft x-ray regime preserve the characteristic signatures of the driving beam, namely ringlike transverse intensi...
متن کامل