Light-induced drift, separation, accumulation and detection of microadmixture

doi:10.1016/0030-4018(91)90062-I

Optics Communications

Volume 83, Issues 5–6, 15 June 1991, Pages 307-309

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Abstract

An experiment has been made in which localization and accumulation of neutral sodium atoms were achieved with the aid of the LID phenomenon and magnetic field. Xenon was used as a buffer gas. The degree of increase of the concentration of sodium vapor in a detection region was greater then 10³.

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Cited by (6)

Light-Induced Drift
1992, Advances in Atomic, Molecular and Optical Physics
This chapter discusses the concept of light-induced drift (LID), which is a mechanical effect of light at the interface of the kinetic theory and laser spectroscopy. The basic principle of LID, explained in terms of a two-level model for the optical absorbers, is as follows. A laser beam, the frequency of which is tuned slightly off resonance, excites those atoms that are Doppler shifted into resonance (the absorption line is assumed to be predominantly Doppler broadened); the excitation is then velocity selective. A hole is burned in the velocity distribution of the atoms in the ground state and complementarily, a peak appears in the distribution of the excited-state atoms. This results in antiparallel fluxes of excited and ground-state atoms. The mechanical action of light in the case of LID differs radically from the action of radiation pressure. In LID, the photons label only a specific velocity class and the collisions with the buffer gas transform the random atomic motion into ordered motion—that is, drift. Net transfer of photon momentum is not involved; equal but opposite momenta is imparted to the absorbing atoms and to the buffer gas.
Ion drift in a magnetic field under the combined action of LID and light pressure
2002, Quantum Electronics
Influence of a magnetic field on the light-induced ion drift
2001, JETP Letters
Magneto-optic piston effect
1999, Physical Review Letters
Light-controlled vapor deposition by light-induced drift
1993, Applied Physics Letters
Light-induced kinetic effects in molecular gases
1992, International Reviews in Physical Chemistry

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Light-induced drift, separation, accumulation and detection of microadmixture

Abstract

Optics Comm.

Sov. Phys. JETR