Journal
OPTICS EXPRESS
Volume 13, Issue 26, Pages 10440-10447Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPEX.13.010440
Keywords
-
Categories
Ask authors/readers for more resources
The focal intensity distribution of strongly focused (NA=0.9) first-order Laguerre-Gaussian doughnut beams is investigated experimentally for three different polarizations: linear, and left-handed circular and right-handed circular. The investigations are done by 2-dimensional scanning the focal plane with of a 100nm diameter fluorescent microbead, and measuring the fluorescence signal. The results are shown to be in excellent agreement with theoretical predictions, and demonstrate the superiority of one of the circular polarizations to achieve a sharp dark central spot. (c) 2005 Optical Society of America.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available