Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5428706 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2013 | 9 Pages |
Debye series expansion (DSE) is employed to the analysis of radiation pressure force (RPF) exerted on biological cells induced by high-order Bessel beams (BB). The beam shape coefficients (BSCs) for high-order Bessel beams are calculated using analytical expressions obtained by the integral localized approximation (ILA). Different types of cells, including a real Chinese Hamster Ovary (CHO) cell and a lymphocyte which are respectively modeled by a coated and five-layered sphere, are considered. The RPF induced by high-order Bessel beams is compared with that by Gaussian beams and zeroth-order Bessel beams, and the effect of different scattering processes on RPF is studied. Numerical calculations show that high-order Bessel beams with zero central intensity can also transversely trap particle in the beam center, and some scattering processes can provide longitudinal pulling force.
⺠BSCs for high-order Bessel beam (HOBB) is derived using ILA. ⺠DSE is employed to study the RPF induced by HOBB exerted on multilayered cells. ⺠RPF is decided by radius relative to the interval of peaks in intensity profile. ⺠HOBB can also transversely trap high-index particle in the vicinity of beam axis. ⺠RPF for some scattering processes can longitudinally pull particles back.