Abstract
A super-length optical needle () of strong transversally polarized field with homogeneous intensity along the optical axis and subdiffraction beam size () can be generated by focusing a hybridly polarized vector beam through a dielectric interface with an annular high-NA lens. Moreover, it is found that the polarization of the cross section near the focal plane is radial variant. Such a nondiffracting optical needle may have applications in atom-optical experiments, such as with atom trap and atom switches.
© 2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Kelei Hu, Ziyang Chen, and Jixiong Pu
J. Opt. Soc. Am. A 29(6) 1099-1104 (2012)
Jianhua Shu, Ziyang Chen, Jixiong Pu, and Yongxin Liu
J. Opt. Soc. Am. A 31(6) 1180-1185 (2014)
Gilad M. Lerman, Liron Stern, and Uriel Levy
Opt. Express 18(26) 27650-27657 (2010)