Title :
Radiation force of coherent and partially coherent flat-topped beams on a Rayleigh particle
Author :
Zhao, Chengliang ; Lu, Xuanhui ; Cai, Yangjian
Author_Institution :
Dept. of Phys., Zhejiang Univ., Hangzhou
Abstract :
Propagations of coherent and partially coherent flat-topped beams through a focusing optical system are formulated. The radiation force on a Rayleigh dielectric sphere induced by focused coherent and partially coherent flat-topped beams is investigated theoretically. It is found that we can increase the transverse trapping range at the planes near the focal plane by increasing the flatness (i.e., beam order) of the flat-topped beam, and we can increase the transverse and longitudinal trapping ranges at the focal plane by decreasing the initial coherence of the flat-topped beam. The trapping stability is also analyzed.
Keywords :
dielectric materials; focal planes; laser beams; light coherence; optical focusing; radiation pressure; Rayleigh dielectric sphere particle; focal plane; focussed coherent flat-topped beam propagation; light trapping stability analysis; longitudinal mode trapping; optical system focusing; partially coherent flat-topped beam propagation; radiation force; transverse mode trapping; Biomedical optical imaging; Dielectrics; Laser beams; Nonlinear optics; Optical surface waves; Particle beams; Photonics; Physics; Polarization; Tensile stress;
Conference_Titel :
PhotonicsGlobal@Singapore, 2008. IPGC 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3901-0
Electronic_ISBN :
978-1-4244-2906-6
DOI :
10.1109/IPGC.2008.4781400
