FDTD simulation of the optical properties for gold nanoparticles
The optical properties of gold nanoparticles such as strong extinction and surface plasmon resonance can be adjusted by altering the structure, which was used widely in the surface enhanced Raman scattering (SERS). In this paper, the optical properties of gold nanoparticles were investigated by usin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abd139 |
| _version_ | 1797746843407351808 |
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| author | Lin Cheng Guixian Zhu Gannan Liu Lianqing Zhu |
| author_facet | Lin Cheng Guixian Zhu Gannan Liu Lianqing Zhu |
| author_sort | Lin Cheng |
| collection | DOAJ |
| description | The optical properties of gold nanoparticles such as strong extinction and surface plasmon resonance can be adjusted by altering the structure, which was used widely in the surface enhanced Raman scattering (SERS). In this paper, the optical properties of gold nanoparticles were investigated by using the Finite-Difference Time-Domain (FDTD) method. The influences of AuNP-size and NP-NP-spacing on the local electric field and extinction properties were analyzed in detail. The results showed that the electric field intensity of AuNPs increased rapidly with the increasing size. Meanwhile, the formant appeared blue shift and the peak intensity increased first and then decreased with the increase of NP-NP-spacing. The theoretical calculation results are concordant with experimental results. The FDTD simulation results of this paper have a guiding significance in SERS areas. |
| first_indexed | 2024-03-12T15:43:34Z |
| format | Article |
| id | doaj.art-deb5653685a4454396bf6c807c0e7687 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:43:34Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-deb5653685a4454396bf6c807c0e76872023-08-09T15:53:29ZengIOP PublishingMaterials Research Express2053-15912020-01-0171212500910.1088/2053-1591/abd139FDTD simulation of the optical properties for gold nanoparticlesLin Cheng0Guixian Zhu1https://orcid.org/0000-0002-3205-6688Gannan Liu2Lianqing Zhu3Department of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University , Beijing, People’s Republic of ChinaDepartment of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University , Beijing, People’s Republic of ChinaDepartment of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University , Beijing, People’s Republic of ChinaDepartment of Instrument Science and Optoelectronic Engineering, Beijing Information Science and Technology University , Beijing, People’s Republic of ChinaThe optical properties of gold nanoparticles such as strong extinction and surface plasmon resonance can be adjusted by altering the structure, which was used widely in the surface enhanced Raman scattering (SERS). In this paper, the optical properties of gold nanoparticles were investigated by using the Finite-Difference Time-Domain (FDTD) method. The influences of AuNP-size and NP-NP-spacing on the local electric field and extinction properties were analyzed in detail. The results showed that the electric field intensity of AuNPs increased rapidly with the increasing size. Meanwhile, the formant appeared blue shift and the peak intensity increased first and then decreased with the increase of NP-NP-spacing. The theoretical calculation results are concordant with experimental results. The FDTD simulation results of this paper have a guiding significance in SERS areas.https://doi.org/10.1088/2053-1591/abd139finite-difference time-domain (FDTD)local surface plasmon resonance (LSPR)surface enhanced Raman scattering (SERS)gold nanoparticles |
| spellingShingle | Lin Cheng Guixian Zhu Gannan Liu Lianqing Zhu FDTD simulation of the optical properties for gold nanoparticles Materials Research Express finite-difference time-domain (FDTD) local surface plasmon resonance (LSPR) surface enhanced Raman scattering (SERS) gold nanoparticles |
| title | FDTD simulation of the optical properties for gold nanoparticles |
| title_full | FDTD simulation of the optical properties for gold nanoparticles |
| title_fullStr | FDTD simulation of the optical properties for gold nanoparticles |
| title_full_unstemmed | FDTD simulation of the optical properties for gold nanoparticles |
| title_short | FDTD simulation of the optical properties for gold nanoparticles |
| title_sort | fdtd simulation of the optical properties for gold nanoparticles |
| topic | finite-difference time-domain (FDTD) local surface plasmon resonance (LSPR) surface enhanced Raman scattering (SERS) gold nanoparticles |
| url | https://doi.org/10.1088/2053-1591/abd139 |
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