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arXiv 0807.1537physics.opticsphysics.class-ph
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纳米金属薄膜诱导的类共振Goss-Haenchen位移

Resonance-like Goss-Haenchen Shift induced by nano-metal films

R. Gruschinski, G. Nimtz, A. A. Stahlhofen

摘要:

研究了纳米金属薄膜对古斯-汉兴位移(GHS)的影响。沉积在有机玻璃棱镜/空气的全反射表面处的膜具有在Z = 25和3000欧姆之间变化的薄层电阻。当薄层电阻接近真空阻抗值时,发现TE极化波的位移和吸收的共振增强。对于TM波,金属薄膜对GHS的影响相对较弱。实验是用微波进行的。关键词:古斯-汉臣位移;纳米金属薄膜;微波PACS:42.25.Bs,42.25.Gy,42.50.- p,73.40.Gk

英文摘要:

The influence of nano-metal films on the Goos-Haenchen shift (GHS) is investigated. The films deposited at the total reflecting surface of a perspex prism/air have a sheet resistance varying between Z = 25 and 3 000 Ohm. A resonance-like enhancement of the shift and of the absorption is found for TE polarized waves, when the sheet resistance approaches the value of the vacuum impedance. For TM waves the influence of the metal films on the GHS is comparatively weak. The experiments are carried out with microwaves. Keywords: Goos-Haenchen shift; nano-metallic films, microwaves PACS: 42.25.Bs, 42.25.Gy, 42.50.-p, 73.40.Gk

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