We analyze the properties of a dual-beam trap of orthogonally intersecting beams in the geometrical optics regime.We derive analytical expressions for the trapping location and stability criteria for trapping a microp...We analyze the properties of a dual-beam trap of orthogonally intersecting beams in the geometrical optics regime.We derive analytical expressions for the trapping location and stability criteria for trapping a microparticle with uncollimated Gaussian beams.An upper limit for the beam waist is found.Optical forces and particle trajectories are calculated numerically for the realistic case of a microparticle in intersecting liquid-core waveguides.展开更多
基金the NIH/NIBIB under grant 1R21EB008802 and the W.M.Keck Center for Nanoscale Optofluidics at UCSC.
文摘We analyze the properties of a dual-beam trap of orthogonally intersecting beams in the geometrical optics regime.We derive analytical expressions for the trapping location and stability criteria for trapping a microparticle with uncollimated Gaussian beams.An upper limit for the beam waist is found.Optical forces and particle trajectories are calculated numerically for the realistic case of a microparticle in intersecting liquid-core waveguides.
