Open AccessCharacteristics of deposition for neutral atoms in laser standing wave with different velocities
Author(s) -
Wentao Zhang,
Bo Zhu,
Xinhong Xiong,
Jing Huang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.063202
Subject(s) - full width at half maximum , transverse plane , atom (system on chip) , physics , atomic physics , longitudinal mode , optics , deposition (geology) , laser , materials science , geology , paleontology , structural engineering , sediment , computer science , embedded system , engineering
The deposition patterns of neutral chromium atoms in a laser standing wave with different longitudinal and transverse velocities are discussed. The simulation results of atoms show that the full width at half maximum (FWHM) of a nanometer stripe is 1.49 nm and the contrast is 62.1 ∶1 when the ideal longitudinal velocity of chromimum atom is the most probable velocity 960 m/s, the FWHM of the stripe is 5.35nm and the contrast is 25.6 ∶1 when the longitudinal velocity of chromimum atom is half the most probable velocity. The simulation results of deposition with different transverse velocities are shown at the same time, the FWHM of the stripe is 4.18nm and the contrast is 20.9 ∶1, with the transverse velocity of chromimum atom being 0.25 m/s; the FWHM of the stripe is 58.4 nm and the contrast is 8.9 ∶1, with the transverse velocity of chromimum atom being 0.50 m/s.