TY - JOUR AU - K Dholakia AU - N Simpson AU - M Padgett AU - L Allen C2 - Physical Review A (Atomic, Molecular and Optical Physics) DA - 1996-01-01 LA - en M1 - 54 PB - Physical Review A (Atomic, Molecular and Optical Physics) PY - 1996 TI - Second Harmonic Generation and the Orbital Angular Momentum of Light ER -