By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Optical Research have been presented. According to news reporting originating in Dharmapuri, India, by VerticalNews journalists, research stated, "A method is presented for generation of cylindrical vector beam and also to obtain the polarization effect on focal depth in high numerical apertures (NA) lens axicon optical systems. The generalized cylindrical vector beam is just a linear combination of radial and azimuthal polarization."
The news reporters obtained a quote from the research from Government Arts College, "For radially polarized light in the focal plane, there are two electric field components one is the radial component and second is azimuthal component, whose magnitudes will increases with the increase of numerical aperture (NA). By contrast, for azimuthally polarized light in the focal plane, there is only one electrical field component in the azimuthal polarization, it is easy to understand the difference between the two polarization effects. The high NA lens axicon utilizes spherical aberration to duplicate the performance of an axicon and to create an extended focal line. In this paper, we demonstrate how this phenomenon can be harnessed to make a properly selected polarization component to achieve high focal depth in high NA lens axicon systems. The numerical evaluation of system generates some of the interesting focal spot, focal split and focal patterns. The largest focal depth is achieved, by properly changing the polarization rotation angle of the cylindrical vector beam (the ratio of radial and azimuthal polarization is set properly)."
According to the news reporters, the research concluded: "We will denote a technique of polarization assisted high focal depth in high NA lens axicon systems."
For more information on this research see: Polarization effect of cylindrical vector beam in high numerical aperture lens axicon systems. Optik, 2013;124(13):1632-1636. Optik can be contacted at: Elsevier Gmbh, Urban & Fischer Verlag, Office Jena, P O Box 100537, 07705 Jena, Germany. (Elsevier - www.elsevier.com; Optik - www.elsevier.com/wps/product/cws_home/701788)
Our news correspondents report that additional information may be obtained by contacting P. Suresh, Govt Arts College, Dept. of Phys, Dharmapuri, Tamil Nadu, India. Additional authors for this research include C. Mariyal, K.B. Rajesh and T.V.S. Pillai.
Keywords for this news article include: Asia, India, Dharmapuri, Optical Research
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