The effect of astigmatism on the phase singularities of focused beams
The phase singularities of plane beams focused by an aperture lens with astigmatism are studied. Numerical calculation results are given to illustrate the dependence of phase singularities of focused plane beams on the astigmatic coefficient and the Fresnel number. It is shown that as the Fresnel nu...
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| Veröffentlicht in: | Optics and laser technology 2010-04, Vol.42 (3), p.484-488 |
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| container_title | Optics and laser technology |
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| creator | Zhang, Yongtao Pan, Liuzhan |
| description | The phase singularities of plane beams focused by an aperture lens with astigmatism are studied. Numerical calculation results are given to illustrate the dependence of phase singularities of focused plane beams on the astigmatic coefficient and the Fresnel number. It is shown that as the Fresnel number gradually increases, the phase singularities shift not only towards the
z-axis but also towards the geometrical focal plane in the presence of astigmatism, whereas the phase singularities move along the focal plane and always line in the focal plane for the astigmatism-free case. With increasing astigmatic coefficient, the phase singularities shift not only towards the
z-axis but also far away from the geometrical focal plane. |
| doi_str_mv | 10.1016/j.optlastec.2009.09.002 |
| format | Article |
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z-axis but also towards the geometrical focal plane in the presence of astigmatism, whereas the phase singularities move along the focal plane and always line in the focal plane for the astigmatism-free case. With increasing astigmatic coefficient, the phase singularities shift not only towards the
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z-axis but also towards the geometrical focal plane in the presence of astigmatism, whereas the phase singularities move along the focal plane and always line in the focal plane for the astigmatism-free case. With increasing astigmatic coefficient, the phase singularities shift not only towards the
z-axis but also far away from the geometrical focal plane.</description><subject>Astigmatism</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Optics</subject><subject>Phase singularity</subject><subject>Physics</subject><subject>Plane beam</subject><subject>Wave optics</subject><issn>0030-3992</issn><issn>1879-2545</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqFkE1PwzAMhiMEEmPwG-gFbi1O2qbpEU3jQ5rEBc5RmjqQqR8j7pD496TatCuWJR_8vH7ll7FbDhkHLh-22bibOkMT2kwA1NncIM7YgquqTkVZlOdsAZBDmte1uGRXRFsAKGSZL9j6_QsTdA7tlIwuiWf8Z28mT30yDskUl7svQ5iQHz73nQl-8kgz6Ua7J2yTBk1P1-zCmY7w5jiX7ONp_b56STdvz6-rx01q80pOqeUNFE6VxmLLTYlctrm1DVSiKZRCJaWTvELBa9W6UmFVCVk3RgIvhLGtyZfs_nB3F8bvPdKke08Wu84MOO5J5zIKCgURrA6gDSNRQKd3wfcm_GoOeo5Nb_UpNj3HpucGEZV3RwtD1nQumMF6OslFLFXkPHKPBw7jvz8egybrcYif-RDD1O3o__X6Ay82iBY</recordid><startdate>20100401</startdate><enddate>20100401</enddate><creator>Zhang, Yongtao</creator><creator>Pan, Liuzhan</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20100401</creationdate><title>The effect of astigmatism on the phase singularities of focused beams</title><author>Zhang, Yongtao ; Pan, Liuzhan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c376t-c1b04f85aced1a5e16d3ccb072b488e866f617e2198df58e77269ba60142acda3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Astigmatism</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Optics</topic><topic>Phase singularity</topic><topic>Physics</topic><topic>Plane beam</topic><topic>Wave optics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Yongtao</creatorcontrib><creatorcontrib>Pan, Liuzhan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Optics and laser technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yongtao</au><au>Pan, Liuzhan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of astigmatism on the phase singularities of focused beams</atitle><jtitle>Optics and laser technology</jtitle><date>2010-04-01</date><risdate>2010</risdate><volume>42</volume><issue>3</issue><spage>484</spage><epage>488</epage><pages>484-488</pages><issn>0030-3992</issn><eissn>1879-2545</eissn><coden>OLTCAS</coden><abstract>The phase singularities of plane beams focused by an aperture lens with astigmatism are studied. Numerical calculation results are given to illustrate the dependence of phase singularities of focused plane beams on the astigmatic coefficient and the Fresnel number. It is shown that as the Fresnel number gradually increases, the phase singularities shift not only towards the
z-axis but also towards the geometrical focal plane in the presence of astigmatism, whereas the phase singularities move along the focal plane and always line in the focal plane for the astigmatism-free case. With increasing astigmatic coefficient, the phase singularities shift not only towards the
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| ispartof | Optics and laser technology, 2010-04, Vol.42 (3), p.484-488 |
| issn | 0030-3992 1879-2545 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Astigmatism Exact sciences and technology Fundamental areas of phenomenology (including applications) Optics Phase singularity Physics Plane beam Wave optics |
| title | The effect of astigmatism on the phase singularities of focused beams |
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