TY - JOUR AU - Lai, W AU - Babiker, M AU - Allen, L C2 - Optics Communications DA - 1997-01-01 LA - en M1 - 133 PB - Optics Communications PY - 1997 TI - Radiation Forces on a Two-Level Atom in a Sigma Plus - Sigma Minus Configuration of Laguerre-Gaussian Beams ER -