Time-domain numerical scheme based on low-order partial-fraction models for the broadband study of frequency-dispersive liquid crystals
A novel finite-difference time-domain formulation for the modeling of electromagnetic wave propagation in frequency-dispersive liquid crystals with random orientation is presented. The dispersion of the complex ordinary and extraordinary permittivities of nematic liquid crystals is described by a ge...
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| Veröffentlicht in: | Journal of the Optical Society of America. B, Optical physics Optical physics, 2016-04, Vol.33 (4), p.622-629 |
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| container_end_page | 629 |
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| container_issue | 4 |
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| container_title | Journal of the Optical Society of America. B, Optical physics |
| container_volume | 33 |
| creator | Prokopidis, Konstantinos P. Zografopoulos, Dimitrios C. |
| description | A novel finite-difference time-domain formulation for the modeling of electromagnetic wave propagation in frequency-dispersive liquid crystals with random orientation is presented. The dispersion of the complex ordinary and extraordinary permittivities of nematic liquid crystals is described by a generalized model based on the sum of partial fractions. The proposed dispersive model encompasses traditional approaches, such as Drude, Drude-Lorentz, and modified-Lorentz functions; it can also capture arbitrary dispersion properties of experimentally characterized nematic mixtures via the vector fitting technique. The accuracy of the formulation is demonstrated in a series of benchmark examples in optical and terahertz frequencies. |
| doi_str_mv | 10.1364/JOSAB.33.000622 |
| format | Article |
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B, Optical physics</title><description>A novel finite-difference time-domain formulation for the modeling of electromagnetic wave propagation in frequency-dispersive liquid crystals with random orientation is presented. The dispersion of the complex ordinary and extraordinary permittivities of nematic liquid crystals is described by a generalized model based on the sum of partial fractions. The proposed dispersive model encompasses traditional approaches, such as Drude, Drude-Lorentz, and modified-Lorentz functions; it can also capture arbitrary dispersion properties of experimentally characterized nematic mixtures via the vector fitting technique. The accuracy of the formulation is demonstrated in a series of benchmark examples in optical and terahertz frequencies.</description><subject>Broadband</subject><subject>Dispersion (wave)</subject><subject>Liquid crystals</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Terahertz frequencies</subject><subject>Time domain</subject><subject>Wave propagation</subject><issn>0740-3224</issn><issn>1520-8540</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNotkLtOAzEQRS0EEiFQ07qkceLHvlwGxFORUhDqlR9jxWh3ndi7oP0CfpsNoZlbzLmj0UHoltEFE0W2fNu8r-4XQiwopQXnZ2jGck5JlWf0HM1omVEiOM8u0VVKnxOTUc5n6GfrWyA2tMp3uBtaiN6oBiezgxawVgksDh1uwjcJ0ULEexV7rxriojK9n1ZtsNAk7ELE_W6qxKCsVp3FqR_siIPDLsJhgM6MxPq0h5j8F-DGHwZvsYlj6lWTrtGFmwJu_nOOPp4etw8vZL15fn1YrYnhNOsJB2MklA5UVWa2zKV0OneOSWVLXlUuF3mhC2kLKCVzBeislMdhtZZGKy3m6O50dx_D9FTq69YnA02jOghDqlnFCsq4pGxClyfUxJBSBFfvo29VHGtG66Py-k95LUR9Ui5-AWdOeJY</recordid><startdate>20160401</startdate><enddate>20160401</enddate><creator>Prokopidis, Konstantinos P.</creator><creator>Zografopoulos, Dimitrios C.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20160401</creationdate><title>Time-domain numerical scheme based on low-order partial-fraction models for the broadband study of frequency-dispersive liquid crystals</title><author>Prokopidis, Konstantinos P. ; Zografopoulos, Dimitrios C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c204t-2ecc9e7fea874d7599fb5ff19ad7288f5356b69d6e791f6eb479eb47dbb9cbab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Broadband</topic><topic>Dispersion (wave)</topic><topic>Liquid crystals</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Terahertz frequencies</topic><topic>Time domain</topic><topic>Wave propagation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Prokopidis, Konstantinos P.</creatorcontrib><creatorcontrib>Zografopoulos, Dimitrios C.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the Optical Society of America. B, Optical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Prokopidis, Konstantinos P.</au><au>Zografopoulos, Dimitrios C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Time-domain numerical scheme based on low-order partial-fraction models for the broadband study of frequency-dispersive liquid crystals</atitle><jtitle>Journal of the Optical Society of America. B, Optical physics</jtitle><date>2016-04-01</date><risdate>2016</risdate><volume>33</volume><issue>4</issue><spage>622</spage><epage>629</epage><pages>622-629</pages><issn>0740-3224</issn><eissn>1520-8540</eissn><abstract>A novel finite-difference time-domain formulation for the modeling of electromagnetic wave propagation in frequency-dispersive liquid crystals with random orientation is presented. The dispersion of the complex ordinary and extraordinary permittivities of nematic liquid crystals is described by a generalized model based on the sum of partial fractions. The proposed dispersive model encompasses traditional approaches, such as Drude, Drude-Lorentz, and modified-Lorentz functions; it can also capture arbitrary dispersion properties of experimentally characterized nematic mixtures via the vector fitting technique. The accuracy of the formulation is demonstrated in a series of benchmark examples in optical and terahertz frequencies.</abstract><doi>10.1364/JOSAB.33.000622</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of the Optical Society of America. B, Optical physics, 2016-04, Vol.33 (4), p.622-629 |
| issn | 0740-3224 1520-8540 |
| language | eng |
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| source | Optica Publishing Group Journals |
| subjects | Broadband Dispersion (wave) Liquid crystals Mathematical analysis Mathematical models Terahertz frequencies Time domain Wave propagation |
| title | Time-domain numerical scheme based on low-order partial-fraction models for the broadband study of frequency-dispersive liquid crystals |
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