Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm.
We present a novel numerical scheme for the simulation of the field enhancement by metal nano-particles in the time domain. The algorithm is based on a combination of the finite-difference time-domain method and the pseudo-spectral time-domain method for dispersive materials. The hybrid solver leads...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2007
|
| _version_ | 1826268520474738688 |
|---|---|
| author | Pernice, W Payne, F Gallagher, D |
| author_facet | Pernice, W Payne, F Gallagher, D |
| author_sort | Pernice, W |
| collection | OXFORD |
| description | We present a novel numerical scheme for the simulation of the field enhancement by metal nano-particles in the time domain. The algorithm is based on a combination of the finite-difference time-domain method and the pseudo-spectral time-domain method for dispersive materials. The hybrid solver leads to an efficient subgridding algorithm that does not suffer from spurious field spikes as do FDTD schemes. Simulation of the field enhancement by gold particles shows the expected exponential field profile. The enhancement factors are computed for single particles and particle arrays. Due to the geometry conforming mesh the algorithm is stable for long integration times and thus suitable for the simulation of resonance phenomena in coupled nano-particle structures. |
| first_indexed | 2024-03-06T21:10:57Z |
| format | Journal article |
| id | oxford-uuid:3e228b4e-698a-4816-b072-149c65a005e6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:10:57Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:3e228b4e-698a-4816-b072-149c65a005e62022-03-26T14:23:44ZNumerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3e228b4e-698a-4816-b072-149c65a005e6EnglishSymplectic Elements at Oxford2007Pernice, WPayne, FGallagher, DWe present a novel numerical scheme for the simulation of the field enhancement by metal nano-particles in the time domain. The algorithm is based on a combination of the finite-difference time-domain method and the pseudo-spectral time-domain method for dispersive materials. The hybrid solver leads to an efficient subgridding algorithm that does not suffer from spurious field spikes as do FDTD schemes. Simulation of the field enhancement by gold particles shows the expected exponential field profile. The enhancement factors are computed for single particles and particle arrays. Due to the geometry conforming mesh the algorithm is stable for long integration times and thus suitable for the simulation of resonance phenomena in coupled nano-particle structures. |
| spellingShingle | Pernice, W Payne, F Gallagher, D Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title | Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title_full | Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title_fullStr | Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title_full_unstemmed | Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title_short | Numerical investigation of field enhancement by metal nano-particles using a hybrid FDTD-PSTD algorithm. |
| title_sort | numerical investigation of field enhancement by metal nano particles using a hybrid fdtd pstd algorithm |
| work_keys_str_mv | AT pernicew numericalinvestigationoffieldenhancementbymetalnanoparticlesusingahybridfdtdpstdalgorithm AT paynef numericalinvestigationoffieldenhancementbymetalnanoparticlesusingahybridfdtdpstdalgorithm AT gallagherd numericalinvestigationoffieldenhancementbymetalnanoparticlesusingahybridfdtdpstdalgorithm |