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【资源】最新nature上的表面等离子激子: 波粒两相性
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Nature Physics Published online: 17 May 2009 | doi:10.1038/nphys1278 Wave–particle duality of single surface plasmon polaritons When light interacts with metal surfaces, it excites electrons, which can form propagating excitation waves called surface plasmon polaritons. These collective electronic excitations can produce strong electric fields localized to subwavelength distance scales1, which makes surface plasmon polaritons interesting for several applications. Many of these potential uses, and in particular those related to quantum networks2, require a deep understanding of the fundamental quantum properties of surface plasmon polaritons. Remarkably, these collective electron states preserve many key quantum mechanical properties of the photons used to excite them, including entanglement3, 4 and sub-Poissonian statistics5. Here, we show that a single-photon source coupled to a silver nanowire excites single surface plasmon polaritons that exhibit both wave and particle properties, similar to those of single photons. Furthermore, the detailed analysis of the spectral interference pattern provides a new method to characterize the dimensions of metallic waveguides with nanometre accuracy. http://www.nature.com/nphys/jour ... /abs/nphys1278.html |
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fdtdpc
木虫 (著名写手)
- 应助: 8 (幼儿园)
- 金币: 7254.2
- 散金: 78
- 红花: 3
- 帖子: 1983
- 在线: 2407.9小时
- 虫号: 298125
- 注册: 2006-11-19
- 专业: 金属非晶态、准晶和纳米晶
3楼2009-05-22 14:28:17
fdtdpc
木虫 (著名写手)
- 应助: 8 (幼儿园)
- 金币: 7254.2
- 散金: 78
- 红花: 3
- 帖子: 1983
- 在线: 2407.9小时
- 虫号: 298125
- 注册: 2006-11-19
- 专业: 金属非晶态、准晶和纳米晶
2楼2009-05-22 08:59:02
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