Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1998),
  • paper QFF6

Formation of adatom density gratings on a substrate by channeling an atomic beam through a pulsed laser standing wave under a completely off-resonant condition

Not Accessible

Your library or personal account may give you access

Abstract

Recently, Timp et al.1 and McClelland et al.3 demonstrated that channeling a transversely laser-cooled atomic beam through a laser standing wave can be used as a new scheme for submicron scale lithography.1-3 Another useful application of so-produced atomic density gratings is in the study of surface diffusion kinetics of adatoms.4-9 To make the laser standing wave a versatile technique, it is desirable that its effectiveness not depend critically on the spectroscopic specifics of the atom in question. This is achievable if one can work at a completely off-resonant condition with Δω/ω ~ 1. We show that at such a condition, a microsecond laser standing wave with much higher electric fields has the same focusing power as a cw laser standing wave at nearresonance condition with Δω/ω ~10−6. We further propose an experimentally practical setup that implements such a concept and show that even with a transversely uncooled atomic beam, we should be able to produce adatom density gratings on a substrate with good contrast ratios.10 We expect the findings to be applicable to all atoms and atomic clusters.

© 1998 Optical Society of America

PDF Article
More Like This
Motion of cold atoms in far-off-resonant standing wave donut beams

X.M. Liu and G.J. Milburn
QWF19 International Quantum Electronics Conference (IQEC) 1998

Atom lithography using standing-wave quenching

K. S. Johnson, J. H. Thywissen, N. H. Dekker, A. P. Chu, R. Younkin, K.K. Berggren, and M. Prentiss
QThD3 International Quantum Electronics Conference (IQEC) 1998

Deflection of Atoms by a Pulsed Standing Wave

P. Ryytty, M. Kaivola, and C. G. Aminoff
QWC37 European Quantum Electronics Conference (EQEC) 1998

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved