Design of Tunable Multi-Band Metamaterial Perfect Absorbers Based on Magnetic Polaritons
A tunable multi-band metamaterial perfect absorber is designed in this paper. The absorber made of a composite array of gold elliptical and circular disks on a thick metallic substrate, separated by a thin dielectric spacer. The absorptivity and the field enhancement of proposed structures are numer...
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| Veröffentlicht in: | Plasmonics (Norwell, Mass.) Mass.), 2019-04, Vol.14 (2), p.389-396 |
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| creator | Mao, Qianjun Feng, Chunzao Yang, Yizhi |
| description | A tunable multi-band metamaterial perfect absorber is designed in this paper. The absorber made of a composite array of gold elliptical and circular disks on a thick metallic substrate, separated by a thin dielectric spacer. The absorptivity and the field enhancement of proposed structures are numerically investigated by the finite difference time domain method. Three absorption peaks (1.15, 1.55, and 2.05 μm) with the maximal absorption of 99.2, 99.7, and 97.3% have been achieved, respectively. By altering the dimensions of associated geometric parameters in the structure, three resonance wavelengths can be tuned individually. Physical mechanism of the multi-band absorption is construed as the resonance of magnetic polaritons. And the absorber exhibits the characteristics that are insensitive to the polarization angle due to its symmetry. The research results can have access to selective control of thermal radiation and the design of multi-band photodetectors. |
| doi_str_mv | 10.1007/s11468-018-0816-1 |
| format | Article |
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The absorber made of a composite array of gold elliptical and circular disks on a thick metallic substrate, separated by a thin dielectric spacer. The absorptivity and the field enhancement of proposed structures are numerically investigated by the finite difference time domain method. Three absorption peaks (1.15, 1.55, and 2.05 μm) with the maximal absorption of 99.2, 99.7, and 97.3% have been achieved, respectively. By altering the dimensions of associated geometric parameters in the structure, three resonance wavelengths can be tuned individually. Physical mechanism of the multi-band absorption is construed as the resonance of magnetic polaritons. And the absorber exhibits the characteristics that are insensitive to the polarization angle due to its symmetry. 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The absorber made of a composite array of gold elliptical and circular disks on a thick metallic substrate, separated by a thin dielectric spacer. The absorptivity and the field enhancement of proposed structures are numerically investigated by the finite difference time domain method. Three absorption peaks (1.15, 1.55, and 2.05 μm) with the maximal absorption of 99.2, 99.7, and 97.3% have been achieved, respectively. By altering the dimensions of associated geometric parameters in the structure, three resonance wavelengths can be tuned individually. Physical mechanism of the multi-band absorption is construed as the resonance of magnetic polaritons. And the absorber exhibits the characteristics that are insensitive to the polarization angle due to its symmetry. The research results can have access to selective control of thermal radiation and the design of multi-band photodetectors.</description><subject>Absorbers</subject><subject>Absorbers (materials)</subject><subject>Absorption</subject><subject>Absorptivity</subject><subject>Access control</subject><subject>Biochemistry</subject><subject>Biological and Medical Physics</subject><subject>Biophysics</subject><subject>Biotechnology</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Disks</subject><subject>Finite difference time domain method</subject><subject>Gold</subject><subject>Magnetic resonance</subject><subject>Metamaterials</subject><subject>Nanotechnology</subject><subject>Polaritons</subject><subject>Substrates</subject><subject>Thermal radiation</subject><subject>Time domain analysis</subject><issn>1557-1955</issn><issn>1557-1963</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kD1PwzAQhi0EEuXjB7BZYg7Yjp06Y1s-pVZ0KBKbZTvnKlVqF9sZ-PekCoKJ4XQ3PO970oPQDSV3lJDpfaKUV7IgdBhJq4KeoAkVYlrQuipPf28hztFFSjtCOOcVn6CPB0jt1uPg8Kb32nSAV32X22KufYNXkPVeZ4it7vAaogOb8cykEA3EhOc6QYODxyu99ZBbi9eh07HNwacrdOZ0l-D6Z1-i96fHzeKlWL49vy5my8KWtMpFraWVwLirJQHpGmGEBeOMtI0spbBlydiUWiMra4DUFXPATU1F7ZwgvJblJbodew8xfPaQstqFPvrhpWKMMEl5XdKBoiNlY0gpglOH2O51_FKUqKNANQpUg0B1FKiOGTZm0sD6LcS_5v9D37-HcyY</recordid><startdate>20190415</startdate><enddate>20190415</enddate><creator>Mao, Qianjun</creator><creator>Feng, Chunzao</creator><creator>Yang, Yizhi</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20190415</creationdate><title>Design of Tunable Multi-Band Metamaterial Perfect Absorbers Based on Magnetic Polaritons</title><author>Mao, Qianjun ; Feng, Chunzao ; Yang, Yizhi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-9a8c8e24f980e8fd5b5cebfb8cd8385c332271cb86cbe0962fe4b9159ff504983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Absorbers</topic><topic>Absorbers (materials)</topic><topic>Absorption</topic><topic>Absorptivity</topic><topic>Access control</topic><topic>Biochemistry</topic><topic>Biological and Medical Physics</topic><topic>Biophysics</topic><topic>Biotechnology</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Disks</topic><topic>Finite difference time domain method</topic><topic>Gold</topic><topic>Magnetic resonance</topic><topic>Metamaterials</topic><topic>Nanotechnology</topic><topic>Polaritons</topic><topic>Substrates</topic><topic>Thermal radiation</topic><topic>Time domain analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mao, Qianjun</creatorcontrib><creatorcontrib>Feng, Chunzao</creatorcontrib><creatorcontrib>Yang, Yizhi</creatorcontrib><collection>CrossRef</collection><jtitle>Plasmonics (Norwell, Mass.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mao, Qianjun</au><au>Feng, Chunzao</au><au>Yang, Yizhi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Design of Tunable Multi-Band Metamaterial Perfect Absorbers Based on Magnetic Polaritons</atitle><jtitle>Plasmonics (Norwell, Mass.)</jtitle><stitle>Plasmonics</stitle><date>2019-04-15</date><risdate>2019</risdate><volume>14</volume><issue>2</issue><spage>389</spage><epage>396</epage><pages>389-396</pages><issn>1557-1955</issn><eissn>1557-1963</eissn><abstract>A tunable multi-band metamaterial perfect absorber is designed in this paper. 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| subjects | Absorbers Absorbers (materials) Absorption Absorptivity Access control Biochemistry Biological and Medical Physics Biophysics Biotechnology Chemistry Chemistry and Materials Science Disks Finite difference time domain method Gold Magnetic resonance Metamaterials Nanotechnology Polaritons Substrates Thermal radiation Time domain analysis |
| title | Design of Tunable Multi-Band Metamaterial Perfect Absorbers Based on Magnetic Polaritons |
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