Topological properties of reflection zeros of optical differentiators based on layered metal-dielectric-metal structures
We investigate the topological properties of reflection zeros of three-layer structures consisting of a dielectric layer sandwiched between two metal layers, which can be used as optical differentiators. We show that the reflection zeros possess non-zero topological charges, which makes them topolog...
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| creator | Kashapov, Artem I Bezus, Evgeni A Bykov, Dmitry A Mingazov, Albert A Doskolovich, Leonid L |
| description | We investigate the topological properties of reflection zeros of three-layer
structures consisting of a dielectric layer sandwiched between two metal
layers, which can be used as optical differentiators. We show that the
reflection zeros possess non-zero topological charges, which makes them
topologically protected. With a small perturbation of the parameters of the
structure (e.g., a change in one of the layer thicknesses), the reflection zero
does not disappear, but shifts in the parameter space, i.e., appears at
different wavelength and angle of incidence. We demonstrate that with a further
parameter change, two zeros with opposite topological charges (+1 and -1)
approach each other, merge, and then disappear. We believe that the obtained
results give useful insight regarding the operation of layered
metal-dielectric-metal structures possessing reflection zeros. |
| doi_str_mv | 10.48550/arxiv.2407.20001 |
| format | Article |
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structures consisting of a dielectric layer sandwiched between two metal
layers, which can be used as optical differentiators. We show that the
reflection zeros possess non-zero topological charges, which makes them
topologically protected. With a small perturbation of the parameters of the
structure (e.g., a change in one of the layer thicknesses), the reflection zero
does not disappear, but shifts in the parameter space, i.e., appears at
different wavelength and angle of incidence. We demonstrate that with a further
parameter change, two zeros with opposite topological charges (+1 and -1)
approach each other, merge, and then disappear. We believe that the obtained
results give useful insight regarding the operation of layered
metal-dielectric-metal structures possessing reflection zeros.</description><identifier>DOI: 10.48550/arxiv.2407.20001</identifier><language>eng</language><subject>Physics - Optics</subject><creationdate>2024-07</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,781,886</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2407.20001$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2407.20001$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Kashapov, Artem I</creatorcontrib><creatorcontrib>Bezus, Evgeni A</creatorcontrib><creatorcontrib>Bykov, Dmitry A</creatorcontrib><creatorcontrib>Mingazov, Albert A</creatorcontrib><creatorcontrib>Doskolovich, Leonid L</creatorcontrib><title>Topological properties of reflection zeros of optical differentiators based on layered metal-dielectric-metal structures</title><description>We investigate the topological properties of reflection zeros of three-layer
structures consisting of a dielectric layer sandwiched between two metal
layers, which can be used as optical differentiators. We show that the
reflection zeros possess non-zero topological charges, which makes them
topologically protected. With a small perturbation of the parameters of the
structure (e.g., a change in one of the layer thicknesses), the reflection zero
does not disappear, but shifts in the parameter space, i.e., appears at
different wavelength and angle of incidence. We demonstrate that with a further
parameter change, two zeros with opposite topological charges (+1 and -1)
approach each other, merge, and then disappear. We believe that the obtained
results give useful insight regarding the operation of layered
metal-dielectric-metal structures possessing reflection zeros.</description><subject>Physics - Optics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFjkEOgjAQRbtxYdQDuLIXAAtCdG80HoA9qTA1kxSmmRYDnl5o3Lv6ycvLzxNin6m0uJSlOmoe8Z3mhTqnuVIqW4uxIkeWXthoKx2TAw4IXpKRDMZCE5B6-QGmyMiFaLZoDDD0AXUg9vKpPbRyNq2eZt7KDoK2SYuwXDA2SQTSBx6aMDD4rVgZbT3sfrsRh_utuj6S2Fg7xk7zVC-tdWw9_Te-ug9NIQ</recordid><startdate>20240729</startdate><enddate>20240729</enddate><creator>Kashapov, Artem I</creator><creator>Bezus, Evgeni A</creator><creator>Bykov, Dmitry A</creator><creator>Mingazov, Albert A</creator><creator>Doskolovich, Leonid L</creator><scope>GOX</scope></search><sort><creationdate>20240729</creationdate><title>Topological properties of reflection zeros of optical differentiators based on layered metal-dielectric-metal structures</title><author>Kashapov, Artem I ; Bezus, Evgeni A ; Bykov, Dmitry A ; Mingazov, Albert A ; Doskolovich, Leonid L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2407_200013</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - Optics</topic><toplevel>online_resources</toplevel><creatorcontrib>Kashapov, Artem I</creatorcontrib><creatorcontrib>Bezus, Evgeni A</creatorcontrib><creatorcontrib>Bykov, Dmitry A</creatorcontrib><creatorcontrib>Mingazov, Albert A</creatorcontrib><creatorcontrib>Doskolovich, Leonid L</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Kashapov, Artem I</au><au>Bezus, Evgeni A</au><au>Bykov, Dmitry A</au><au>Mingazov, Albert A</au><au>Doskolovich, Leonid L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Topological properties of reflection zeros of optical differentiators based on layered metal-dielectric-metal structures</atitle><date>2024-07-29</date><risdate>2024</risdate><abstract>We investigate the topological properties of reflection zeros of three-layer
structures consisting of a dielectric layer sandwiched between two metal
layers, which can be used as optical differentiators. We show that the
reflection zeros possess non-zero topological charges, which makes them
topologically protected. With a small perturbation of the parameters of the
structure (e.g., a change in one of the layer thicknesses), the reflection zero
does not disappear, but shifts in the parameter space, i.e., appears at
different wavelength and angle of incidence. We demonstrate that with a further
parameter change, two zeros with opposite topological charges (+1 and -1)
approach each other, merge, and then disappear. We believe that the obtained
results give useful insight regarding the operation of layered
metal-dielectric-metal structures possessing reflection zeros.</abstract><doi>10.48550/arxiv.2407.20001</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Optics |
| title | Topological properties of reflection zeros of optical differentiators based on layered metal-dielectric-metal structures |
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