Generation of Super Long Dark Channel using Annular Multi-Gaussian Beam

机译：环形多高斯光束产生超长暗通道

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According to Vector diffraction theory, focusing properties of azimuthally polarized annular multi Gaussian beam through dielectric interface is numerically studied. It is observed that the presence of dielectric interface generates focal shift and the inclusion of annular obstruction at the aperture enhances the focal depth and minimized the focal hole size. By properly tuning the annular obstruction, a focal hole of FWHM 0.606 λ having super long focal depth of 3080λ is achieved. The focal depth of the dark channel achieved is found to be much larger than all the previously proposed methods.

机译：根据矢量衍射理论，通过介质界面对方位极化环形多高斯光束的聚焦特性进行了数值研究。观察到介电界面的存在会引起焦点偏移，并且在孔处包含环形障碍物会增加焦点深度并使焦孔尺寸最小化。通过适当地调节环形障碍物，可获得具有3080λ的超长焦深的FWHM 0.606λ的聚焦孔。发现实现的暗通道的焦深比所有先前提出的方法大得多。

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来源
《International Conference on Optics and Photonics 2015》|2015年|965429.1-965429.5|共5页
会议地点 Kolkata(IN)
作者
M Lavanya; M Udhayakumar; S Shanmugapriya; K.B. Rajesh;
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作者单位

Department of Physics, PSGR Krishnammal College for Women, Coimbatore, Tamilnadu,India;

Department of Physics, Chikkanna Government Arts College, Trippur,Tamilnadu, India;

Department of Physics, PSGR Krishnammal College for Women, Coimbatore, Tamilnadu,India;

Department of Physics, Chikkanna Government Arts College, Trippur,Tamilnadu, India;

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原文格式 PDF
正文语种 eng
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关键词
Vector diffraction theory; MultiGaussian beam; Azimuthally polarized beam;

机译：矢量衍射理论；多高斯光束方位角偏振光束;

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专利

1. Generation of sub wavelength super long dark channel using azimuthally polarized annular multi-Gaussian beam [J] . J. William Charles, K. Prabakaran, K. B. Rajesh, Optical and quantum electronics . 2014,第8期

机译：使用方位极化环形多高斯光束产生亚波长超长暗通道
2. Generation of sub-wavelength longitudinal magnetic probe and multiple spots using circularly polarized annular multi-Gaussian beam [J] . S. Seethalakshmi, M. Udhayakumar, N. Priyadharsini, Journal of Optics . 2019,第4期

机译：使用圆极化环形多高斯光束产生亚波长纵向磁探头和多个斑点
3. Generation of multiple focal spot and focal hole segments using phase modulated cylindrically polarized annular multi-Gaussian beam [J] . R. Chandrasekaran, K. Prabakaran, K. B. Rajesh Optical and quantum electronics . 2016,第1期

机译：使用相位调制圆柱偏振环形多高斯光束生成多个焦点和焦点孔段
4. Generation of Super Long Dark Channel using Annular Multi-Gaussian Beam [C] . M Lavanya, M Udhayakumar, S Shanmugapriya, Modeling Aspects in Optical Metrology . 2015

机译：使用环形多高斯光束产生超长暗通道
5. GENERATION OF MICROWAVE RADIATION FROM ANNULAR, ROTATING ELECTRON BEAMS IN VARIOUS WAVEGUIDE GEOMETRIES (GYROTRON, SOURCE, NEGATIVE MASS, CYLCOTRON RESONANCE). [D] . LAWSON, WESLEY GRANT. 1985

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7. Generation of multiple focal spot and focal hole segments using phase modulated cylindrically polarized annular multi-Gaussian beam [O] . R. Chandrasekaran, K. Prabakaran, K. B. Rajesh 2015

机译：使用相位调制圆柱偏振环形多高斯光束生成多个焦点和焦点孔段

Generation of Super Long Dark Channel using Annular Multi-Gaussian Beam

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