Tightly Focusing of Circularly Polarized Vortex Beams through a Uniaxial Birefringent Crystal

Autor:	Rao Lian-Zhou, Zheng Xiao-Xia, Wang Zong-Chi
Rok vydání:	2008
Předmět:	Physics Angular momentum Birefringence business.industry Physics::Optics General Physics and Astronomy Strehl ratio Charge (physics) Optics Focus (optics) business Spin (physics) Topological quantum number Beam (structure)
Zdroj:	Chinese Physics Letters. 25:3223-3226
ISSN:	1741-3540 0256-307X
Popis:	Under the approximation of small birefringence, the properties of circularly polarized vortex beams tightly focused through a uniaxial birefringent crystal are studied. With the proper combination of the topological charge and the birefringence, the small focus, the small bottle beam and the inverse c-shaped intensity profile can be obtained. The effects of the focal shift and the Strehl ratio on the birefringence are analysed. A relation between angular momentum (included spin and orbital) and topological Pancharatnam charge is also presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6982322459b6c01a7ce48b756265ee7 https://doi.org/10.1088/0256-307x/25/9/035 Zobrazit plný text záznamu