Resonance Frequencies of Electrically Charged Nanoparticles
We develop a procedure to analyze charged nanoparticle (NP) surface modes. Using the resonance condition derived by Rosenkrantz and Arnon, we obtain frequencies at which the electromagnetic (EM) radiation stimulates resonance over a wide range of modes. Our results confirm that the relation between...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IEEE
2011-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/5685244/ |
| _version_ | 1828968126747770880 |
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| author | Etai Rosenkrantz Shlomi Arnon |
| author_facet | Etai Rosenkrantz Shlomi Arnon |
| author_sort | Etai Rosenkrantz |
| collection | DOAJ |
| description | We develop a procedure to analyze charged nanoparticle (NP) surface modes. Using the resonance condition derived by Rosenkrantz and Arnon, we obtain frequencies at which the electromagnetic (EM) radiation stimulates resonance over a wide range of modes. Our results confirm that the relation between the resonance frequencies and the excess surface charge can be described by a monotonically increasing function. Taking the derivative of this function, it is evident that the lower surface potentials have a greater influence on the resonance frequency. This effect decreases as the surface potential increases. Surface modes contribute to the surface energy of charged NPs, and for this reason, they can modify charged NP optical properties. We found that there is a strong dependence of the resonance frequencies on the electrically charged NP refractive index and surface potential. This dependence can play an important role in nonmetallic nanotechnological devices, such as attenuators and modulators in optical communication and optical detectors in biomedical sensors. |
| first_indexed | 2024-12-14T12:04:37Z |
| format | Article |
| id | doaj.art-8f168d88ca8c4e699c04235fcf4a3f2b |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T12:04:37Z |
| publishDate | 2011-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-8f168d88ca8c4e699c04235fcf4a3f2b2022-12-21T23:01:54ZengIEEEIEEE Photonics Journal1943-06552011-01-0131828810.1109/JPHOT.2011.21052585685244Resonance Frequencies of Electrically Charged NanoparticlesEtai Rosenkrantz0Shlomi Arnon1<formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula>Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev , Beer Sheva, Israel<formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula>Electrical and Computer Engineering Department, Satellite and Wireless Communication Laboratory, Ben-Gurion University of the Negev, Beer Sheva, IsraelWe develop a procedure to analyze charged nanoparticle (NP) surface modes. Using the resonance condition derived by Rosenkrantz and Arnon, we obtain frequencies at which the electromagnetic (EM) radiation stimulates resonance over a wide range of modes. Our results confirm that the relation between the resonance frequencies and the excess surface charge can be described by a monotonically increasing function. Taking the derivative of this function, it is evident that the lower surface potentials have a greater influence on the resonance frequency. This effect decreases as the surface potential increases. Surface modes contribute to the surface energy of charged NPs, and for this reason, they can modify charged NP optical properties. We found that there is a strong dependence of the resonance frequencies on the electrically charged NP refractive index and surface potential. This dependence can play an important role in nonmetallic nanotechnological devices, such as attenuators and modulators in optical communication and optical detectors in biomedical sensors.https://ieeexplore.ieee.org/document/5685244/NanostructureMie theorypolaritonsurface |
| spellingShingle | Etai Rosenkrantz Shlomi Arnon Resonance Frequencies of Electrically Charged Nanoparticles IEEE Photonics Journal Nanostructure Mie theory polariton surface |
| title | Resonance Frequencies of Electrically Charged Nanoparticles |
| title_full | Resonance Frequencies of Electrically Charged Nanoparticles |
| title_fullStr | Resonance Frequencies of Electrically Charged Nanoparticles |
| title_full_unstemmed | Resonance Frequencies of Electrically Charged Nanoparticles |
| title_short | Resonance Frequencies of Electrically Charged Nanoparticles |
| title_sort | resonance frequencies of electrically charged nanoparticles |
| topic | Nanostructure Mie theory polariton surface |
| url | https://ieeexplore.ieee.org/document/5685244/ |
| work_keys_str_mv | AT etairosenkrantz resonancefrequenciesofelectricallychargednanoparticles AT shlomiarnon resonancefrequenciesofelectricallychargednanoparticles |