TY - JOUR AU - Jia, B. AU - Gan, X. AU - Gu, M. TI - Strong tangential force within a small trapping volume under near-field Laguerre-Gaussian beam illumination JF - Optics Express VL - 16 IS - 19 SP - 15191-15197 PY - 2008 UR - http://dx.doi.org/10.1364/OE.16.015191 ID - 27 ER -