title: Comment on: Computation of the optical trapping force using an FDTD based technique.
abstract: In this comment, problems associated with an oversimplified FDTD based model used for trapping force calculation in recent papers "Computation of the optical trapping force using an FDTD based technique" [Opt. Express 13, 3707 (2005)], and "Rigorous time domain simulation of momentum transfer between light and microscopic particles in optical trapping" [Opt. Express 12, 2220 (2004)] are discussed. A more rigorous model using in Poynting vector is also presented.
authors.forename: Fei
authors.initials: F
authors.lastname: Zhou
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Gan
authors.forename: Wendong
authors.initials: W
authors.lastname: Xu
authors.forename: Fuxi
authors.initials: F
authors.lastname: Gan