Two-photon photo-ionization of the Ca 4s3d 1D2 level in an optical dipole trap
Atomic Physics
2009-11-10 v2
Abstract
We report an optical dipole trap for calcium. The trap is created by focusing a 488 nm argon-ion laser beam into a calcium magneto-optical trap. The argon-ion laser photo-ionizes atoms in the trap because of a near-resonance with the 4s4f 1F3 level. By measuring the dipole trap decay rate as a function of argon-ion laser intensity, we determine the 1F3 photo-ionization cross section at our wavelength to be approximately 230 Mb.
Keywords
Cite
@article{arxiv.physics/0411004,
title = {Two-photon photo-ionization of the Ca 4s3d 1D2 level in an optical dipole trap},
author = {J. E. Daily and R. Gommers and E. A. Cummings and D. S. Durfee and S. D. Bergeson},
journal= {arXiv preprint arXiv:physics/0411004},
year = {2009}
}
Comments
5 pages, 4 figures