dorsal/arxiv
View SchemaPolarization state of the optical near-field
| Authors | G. Leveque, G. Colas des Francs, C. Girard, J. -C. Weeber, C. Meier, C. Robilliard, R. Mathevet, J. Weiner |
|---|---|
| Categories | |
| ArXiv ID | physics/0111177 |
| URL | https://arxiv.org/abs/physics/0111177 |
| DOI | 10.1103/PhysRevE.65.036701 |
Abstract
The polarization state of the optical electromagnetic field lying several nanometers above complex dielectric structures reveals the intricate light-matter interaction that occurs in this near-field zone. This information can only be extracted from an analysis of the polarization state of the detected light in the near-field. These polarization states can be calculated by different numerical methods well-suited to near--field optics. In this paper, we apply two different techniques (Localized Green Function Method and Differential Theory of Gratings) to separate each polarisation component associated with both electric and magnetic optical near-fields produced by nanometer sized objects. The analysis is carried out in two stages: in the first stage, we use a simple dipolar model to achieve insight into the physical origin of the near-field polarization state. In the second stage, we calculate accurate numerical field maps, simulating experimental near-field light detection, to supplement the data produced by analytical models. We conclude this study by demonstrating the role played by the near-field polarization in the formation of the local density of states.
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"abstract": "The polarization state of the optical electromagnetic field lying several\nnanometers above complex dielectric structures reveals the intricate\nlight-matter interaction that occurs in this near-field zone. This information\ncan only be extracted from an analysis of the polarization state of the\ndetected light in the near-field. These polarization states can be calculated\nby different numerical methods well-suited to near--field optics. In this\npaper, we apply two different techniques (Localized Green Function Method and\nDifferential Theory of Gratings) to separate each polarisation component\nassociated with both electric and magnetic optical near-fields produced by\nnanometer sized objects. The analysis is carried out in two stages: in the\nfirst stage, we use a simple dipolar model to achieve insight into the physical\norigin of the near-field polarization state. In the second stage, we calculate\naccurate numerical field maps, simulating experimental near-field light\ndetection, to supplement the data produced by analytical models. We conclude\nthis study by demonstrating the role played by the near-field polarization in\nthe formation of the local density of states.",
"arxiv_id": "physics/0111177",
"authors": [
"G. Leveque",
"G. Colas des Francs",
"C. Girard",
"J. -C. Weeber",
"C. Meier",
"C. Robilliard",
"R. Mathevet",
"J. Weiner"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevE.65.036701",
"title": "Polarization state of the optical near-field",
"url": "https://arxiv.org/abs/physics/0111177"
},
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