Alkali metal dispensers have become an indispensable tool in the production of atomic vapors for magnetometry, alkali vapor cell clocks, and laser cooling experiments. A primary advantage these is that they contain inert form can be exposed to air without hazard. However, their high temperature operation (>600 C) undesirable many applications, as it shifts speed distribution higher values prese...

We study theoretically and experimentally a new mechanism for the rotation of the polarization ellipse of a single laser beam propagating through an atomic vapor with a frequency tuned near an atomic resonance. The results of a theoretical treatment for the case of a J = (1/2) to J = (1/2) atomic transition show that a rotation of the polarization ellipse of the laser beam will occur as a resul...

The intensity ratios of 3 → 2 emission lines of Fe XVIII and Ni XX were measured on the Livermore electron beam ion trap (EBIT-I) with a flat-field grating spectrometer. The results were compared with distorted-wave (DW) calculations obtained with the Flexible Atomic Code and recent close-coupling calculations using the R-matrix code. The measured 3s → 2p/3d → 2p ratios are about 20–40% higher ...

We investigate the excitation of atomic levels in a high-voltage discharge gap by studying the spectrum of the 2p-3d transitions of Li I atoms flowing in the gap. The Stark splitting of this transition, due to the gap electric field, enables resolving the lines originating from different magnetic sublevels of the 3d level. We show that the atomic level populations are dominated by excitations d...

We propose a scheme for generating two-mode squeezing in high-Q resonators using a beam of atoms with random arrival times, which acts as a reservoir for the field. The scheme is based on four-wave mixing processes leading to emission into two cavity modes, which are resonant with the Rabi sidebands of the atomic dipole transition, driven by a saturating classical field. At steady state the cav...

In this paper an effective quantum particle beam-splitter in the momentum space is realized in the frame of open-loop control scheme. We demonstrate for small interaction time that the splitting effect ±40~k with summarized relative intensity in both main components is about 50 per cent from initial intensity of the atomic beam.

Nanoscale dispensing (NADIS) has been recently developed for liquid deposition and manipulation. In NADIS, atomic force microscope probe milled by a focused ion beam was used for nanoscale dispensing of liquid. We present an approach to control the size of dispensed droplets by several parameters such as the aperture size on the probe, the surface energy of both tip outer wall and sample surfac...

Fields of a radially polarized laser beam developed recently [Y. I. Salamin, Opt. Lett.31, 2619 (2006)] are employed to show that electrons produced by atomic ionization near the focus may be accelerated to GeV energies. Conditions for producing a mono-energetic and well-collimated electron beam are discussed.