Dipole traps for neutral atoms formed by nonuniformly polarised Laguerre modes

Atomic and Molecular Manipulation Using Structured Light

“…More recent work concentrated on trapping in dark regions of the beam profile, indicating that under such circumstances the trapped atoms would experience diminished heating effects [25]. As interest in the subject has grown, many other groups have also engaged in issues surrounding the effects of OAM on atoms and molecules [30][31][32][33][34][35]. As interest in the subject has grown, many other groups have also engaged in issues surrounding the effects of OAM on atoms and molecules [30][31][32][33][34][35].…”

“…The specification of the force due to the beam propagating in the negative z-direction is shown in equations (32), (33), and (34) with θ = π and ψ = 0. In the one-dimensional molasses configuration, a pair of counterpropagating beams is set up along the z-axis.…”

Active-quadrupole interaction of Bessel beams and their influence on atoms

“…The radiation pressure force has been exploited in what is known as a cooling and heating processes [4], and the gradient force has been used in what is known as a trapping process [5]. It is clear from the quantum optics literature that such research, if not all, has focused only on the active-dipole interaction and its various possible applications in the past two decades [6][7][8][9][10][11]. In contrast, this work presents an investigation of neutral atom manipulation based on the active-quadrupole interaction.…”

Generation of inhomogeneously polarized laser beams by use of a Sagnac interferometer

“…The longitudinal component of an electric field for a sharply focused radially polarized beam can be used for the acceleration of relativistic electrons. 7,8 These modes can be applied for trapping cold atoms, 9 and the helical modes are proposed in diagnostic and metrological systems. 10 This list of possible applications for modes with inhomogeneous polarization certainly does not stop here, but, it is too early to comment on the wide use of such modes because the methods for obtaining such modes are not yet reliable enough from a practical point of view.…”