Title :
Light torque on atoms
Author :
Friese, M.E.J. ; Andersen, J.A. ; Rubinsztein-Dunlop, H. ; Truscott, A.G. ; Heckenberg, N.R.
Author_Institution :
Dept. of Phys., Queensland Univ., Brisbane, Qld., Australia
Abstract :
Summary form only given. Laguerre-Gaussian (LG) beams of non-zero order (also called "doughnut" or "vortex" beams), with their unusual phase and intensity spatial variation, have lately attracted interest in atom trapping and cooling research. These modes have a cylindrical geometry with respect to the direction of propagation and an intensity variation described by I(r)/spl prop/r/sup 21/e/sup -2r2/, where r is the radial distance from the axis of propagation measured in units of the beam waist and l is the order of the mode.
Keywords :
laser beam effects; laser beams; laser cooling; particle optics; radiation pressure; Laguerre-Gaussian beams; atom light torque; atom trapping; axis of propagation; beam waist; cylindrical geometry; doughnut vortex beams; intensity spatial variation; intensity variation; laser cooling research; mode order; non-zero order; propagation direction; radial distance; unusual phase; Atom optics; Clouds; Lithography; Metastasis; Numerical simulation; Optimized production technology; Statistics; Torque;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-608-7
