Beginning with a beam coherence polarization (BCP) matrix, we obtain an analytical intensity expression for radially polarized ultrashort pulsed laser beams that pass through an apertureless aplanatic lens. We also investigate the intensity distribution of radially polarized beams in the vicinity of the focus.
The focal shift of these beams is studied in detail. The focal shift depends strongly on
© 2007 Optical Society of America
Original Manuscript: March 29, 2007
Revised Manuscript: June 4, 2007
Manuscript Accepted: June 18, 2007
Published: August 22, 2007
Guohua Wu, Qihong Lou, Jun Zhou, Jingxing Dong, and Yungrong Wei, "Focal shift in focused radially polarized ultrashort pulsed laser beams," Appl. Opt. 46, 6251-6255 (2007)