Focusing properties of Azimuthally Polarized Lorentz Gauss Vortex Beam through a Dielectric Interface

被引:0
|
作者
Saraswathi, Chokkalingam [1 ]
Maruthasalam, Lavanya [2 ]
Udhayakumar, Mariyappan [3 ]
Jaroszewicz, Zbigniew [4 ]
机构
[1] Govt Arts Coll, Dept Phys, Dharmapuri, India
[2] PSGR Krishnammal Coll Women, Dept Phys, Coimbatore 641004, Tamil Nadu, India
[3] Chikkanna Govt Arts Coll, Tiruppur, India
[4] Natl Inst Telecommun, Szachowa 1, PL-04894 Warsaw, Poland
关键词
TRAP;
D O I
10.4302/plp.v15i3.1200
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
focusing properties of azimuthally polarized Lorentz Gaussian vortex beam through a dielectric interface are numerically studied by vector diffraction theory. The focusing properties, such as spot size, depth of focus, and maximum intensity position, are numerically calculated by properly manipulating the Lorentz parameter with/without annular obstruction values. Thus, using annular obstruction, one can generate a highly confined focal spot of long focal depth when using an azimuthally polarized Lorentz Gaussian vortex beam.
引用
收藏
页码:33 / 35
页数:3
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