Title :
The optical Hall effect in tightly focused light beams
Author :
Bomzon, Zeev ; Gu, Min
Author_Institution :
Centre for Micro-Photonics, Swinburne Univ. of Technol., Hawthorn, VIC
Abstract :
We show that topological charge is not conserved in tightly focused beams. Conversion of spin angular momentum into orbital angular momentum occurs through a geometrical phase. We demonstrate a connection between the shape of the focal spot, and the recently discovered optical Hall effect.
Keywords :
Hall effect; geometrical optics; light polarisation; geometrical phase; optical Hall effect; orbital angular momentum; spin angular momentum; tightly focused light beams; topological charge; Australia; Berry phase; Focusing; Geometrical optics; Hall effect; Lenses; Optical polarization; Optical refraction; Shape; Spirals;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391574
