title: Controllable elliptical dark-hollow beams.
abstract: A new (to our knowledge) kind of light beam called the controllable elliptical dark-hollow beam (CEDHB), is introduced to describe dark-hollow beams with axially rotational asymmetry by using the tensor method. The propagation formulas of CEDHBs through paraxial aligned and misaligned nonsymmetrical optical systems are derived through vector integration. With the derived formulas, the propagation properties of CEDHBs in free-space propagation and through a misaligned thin lens are studied graphically. The CEDHBs provide a convenient model to describe and treat dark-hollow beams with axially rotational asymmetry and can be used conveniently to analyze atoms manipulated with a dark-hollow beam.
authors.affiliation: Department of Physics, Zhejiang University, Hangzhou, China.
authors.forename: Zhangrong
authors.initials: Z
authors.lastname: Mei
authors.forename: Daomu
authors.initials: D
authors.lastname: Zhao