Effect of subwavelength annular aperture diameter on the nondiffracting region of generated Bessel beams
A subwavelength annular aperture (SAA) made on metallic film and deposited on a glass substrate was fabricated by electron-beam lithography (EBL) and which was followed by a metal lift-off process to generate a long propagation range Bessel beam. We propose tuning the focal length and depth of focus...
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| Veröffentlicht in: | Optics express 2009-02, Vol.17 (4), p.2707-2713 |
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| creator | Yu, Yuh-Yan Lin, Ding-Zheng Huang, Long-Sun Lee, Chih-Kung |
| description | A subwavelength annular aperture (SAA) made on metallic film and deposited on a glass substrate was fabricated by electron-beam lithography (EBL) and which was followed by a metal lift-off process to generate a long propagation range Bessel beam. We propose tuning the focal length and depth of focus (DOF) by changing the diameter of the SAA. We used finite-difference time domain (FDTD) simulations to verify our experimental data. We found that the position of the Bessel Beam focus spot (i.e. focal length) will be farther away from the SAA plane as the diameter of the SAA increases. In addition, the depth of focus (DOF) which is the length of the Bessel beam non-diffracting area, also increases as the diameter of the SAA expands. |
| doi_str_mv | 10.1364/oe.17.002707 |
| format | Article |
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We propose tuning the focal length and depth of focus (DOF) by changing the diameter of the SAA. We used finite-difference time domain (FDTD) simulations to verify our experimental data. We found that the position of the Bessel Beam focus spot (i.e. focal length) will be farther away from the SAA plane as the diameter of the SAA increases. 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In addition, the depth of focus (DOF) which is the length of the Bessel beam non-diffracting area, also increases as the diameter of the SAA expands.</description><subject>Computer-Aided Design</subject><subject>Equipment Design</subject><subject>Equipment Failure Analysis</subject><subject>Lenses</subject><subject>Light</subject><subject>Nanostructures - chemistry</subject><subject>Nanostructures - ultrastructure</subject><subject>Nanotechnology - instrumentation</subject><subject>Refractometry - instrumentation</subject><subject>Reproducibility of Results</subject><subject>Scattering, Radiation</subject><subject>Sensitivity and Specificity</subject><subject>Surface Plasmon Resonance - instrumentation</subject><subject>Surface Plasmon Resonance - methods</subject><issn>1094-4087</issn><issn>1094-4087</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNkD1PwzAQQC0EolDYmJEnJlLs2InjEaryIVXqArPlOOc0KLGL7YD49wS1Ekx30r17w0PoipIFZSW_87CgYkFILog4QmeUSJ5xUonjf_sMncf4TgjlQopTNKMyp5KK4gxtV9aCSdhbHMf6S39CD65NW6ydG3sdsN5BSGMA3HR6gAQBe4fTFrDzrumsDdqkzrU4QNtNl8nTgoOgEzT4AWKEHtegh3iBTqzuI1we5hy9Pa5el8_ZevP0srxfZ4ZJljLOBK8KmYuqYYYwXlWmaiwptQWSGwPaFMaKktZVYWpOmaFENAZsDtMLlZrN0c3euwv-Y4SY1NBFA32vHfgxqrKUjBS5nMDbPWiCjzGAVbvQDTp8K0rUb1m1WSkq1L7shF8fvGM9QPMHH1KyHww0dWE</recordid><startdate>20090216</startdate><enddate>20090216</enddate><creator>Yu, Yuh-Yan</creator><creator>Lin, Ding-Zheng</creator><creator>Huang, Long-Sun</creator><creator>Lee, Chih-Kung</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20090216</creationdate><title>Effect of subwavelength annular aperture diameter on the nondiffracting region of generated Bessel beams</title><author>Yu, Yuh-Yan ; Lin, Ding-Zheng ; Huang, Long-Sun ; Lee, Chih-Kung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-4374859278d3c03488c8df06afe02cceac5cf761b85cb413c107dcef2e27819a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Computer-Aided Design</topic><topic>Equipment Design</topic><topic>Equipment Failure Analysis</topic><topic>Lenses</topic><topic>Light</topic><topic>Nanostructures - chemistry</topic><topic>Nanostructures - ultrastructure</topic><topic>Nanotechnology - instrumentation</topic><topic>Refractometry - instrumentation</topic><topic>Reproducibility of Results</topic><topic>Scattering, Radiation</topic><topic>Sensitivity and Specificity</topic><topic>Surface Plasmon Resonance - instrumentation</topic><topic>Surface Plasmon Resonance - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Yuh-Yan</creatorcontrib><creatorcontrib>Lin, Ding-Zheng</creatorcontrib><creatorcontrib>Huang, Long-Sun</creatorcontrib><creatorcontrib>Lee, Chih-Kung</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Optics express</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Yuh-Yan</au><au>Lin, Ding-Zheng</au><au>Huang, Long-Sun</au><au>Lee, Chih-Kung</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of subwavelength annular aperture diameter on the nondiffracting region of generated Bessel beams</atitle><jtitle>Optics express</jtitle><addtitle>Opt Express</addtitle><date>2009-02-16</date><risdate>2009</risdate><volume>17</volume><issue>4</issue><spage>2707</spage><epage>2713</epage><pages>2707-2713</pages><issn>1094-4087</issn><eissn>1094-4087</eissn><abstract>A subwavelength annular aperture (SAA) made on metallic film and deposited on a glass substrate was fabricated by electron-beam lithography (EBL) and which was followed by a metal lift-off process to generate a long propagation range Bessel beam. 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| fulltext | fulltext |
| identifier | ISSN: 1094-4087 |
| ispartof | Optics express, 2009-02, Vol.17 (4), p.2707-2713 |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Computer-Aided Design Equipment Design Equipment Failure Analysis Lenses Light Nanostructures - chemistry Nanostructures - ultrastructure Nanotechnology - instrumentation Refractometry - instrumentation Reproducibility of Results Scattering, Radiation Sensitivity and Specificity Surface Plasmon Resonance - instrumentation Surface Plasmon Resonance - methods |
| title | Effect of subwavelength annular aperture diameter on the nondiffracting region of generated Bessel beams |
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