Chirality-enabled optical dipole potential energy for two-level atoms
نویسندگان
چکیده
We consider the optical dipole potential energy, which arises from interaction of a two-level atom with circularly polarized Laguerre-Gaussian laser beam small waist. The is characterized by existence longitudinal electric field component responsible for appearance chiral term in energy. This reverses sign if either winding number or wave polarization sign. propose scheme bi-chromatic vortex resulting fully chiral.
منابع مشابه
Theory of an optical dipole trap for cold atoms
The theory of an atom dipole trap composed of a focused, far red-detuned, trapping laser beam, and a pair of red-detuned, counterpropagating, cooling beams is developed for the simplest realistic multilevel dipole interaction scheme based on a model of a ~315!-level atom. The description of atomic motion in the trap is based on the quantum kinetic equations for the atomic density matrix and the...
متن کاملPrinciples of electric-dipole-allowed optical control of molecular chirality
Conditions for achieving ‘‘optical asymmetric synthesis,’’ an example of controlled chiral symmetry breaking, using the electric-dipole light-field interaction are derived. These include scenarios in which neither the medium nor the light is chiral by itself. Specifically, parity requirements are used to show that any optical scenario in which the dynamics of the molecule depends on the overall...
متن کاملTransition from antibunching to bunching for two dipole-interacting atoms
It is known that there is a transition from photon antibunching to bunching in the resonance fluorescence of a driven system of two two-level atoms with dipole-dipole interaction when the atomic distance decreases and the other parameters are kept fixed. We give a simple explanation for the underlying mechanism which in principle can also be applied to other systems. PACS numbers 42.50.Ar, 42.50Fx
متن کاملNonlinear dynamics of atoms in a crossed optical dipole trap.
We explore the classical dynamics of atoms in an optical dipole trap formed by two identical Gaussian beams propagating in perpendicular directions. The phase space is a mixture of regular and chaotic orbits, the latter becoming dominant as the energy of the atoms increases. The trapping capabilities of these perpendicular Gaussian beams are investigated by considering an atomic ensemble in fre...
متن کاملZ-scan formula for two-level atoms
An analytical expression for the Z-scan signal from two-level atoms which show a saturable dispersive and absorptive nonlinearity is derived. An approximate solution is obtained for the normalized transmittance and compared with numerical calculations. 2004 Elsevier B.V. All rights reserved.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.103.013106