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|Title:||Giant Goos–Hänchen shift in scattering : the role of interfering localized plasmon modes||Authors:||Ghosh, N.
Dutta Gupta, S.
DRNTU::Science::Physics::Optics and light
|Issue Date:||2014||Source:||Soni, J., Mansha, S., Dutta Gupta, S., Banerjee, A., & Ghosh, N. (2014). Giant Goos–Hänchen shift in scattering: the role of interfering localized plasmon modes. Optics Letters, 39(14), 4100-4103.||Series/Report no.:||Optics letters||Abstract:||The longitudinal and transverse beam shifts, namely, the Goos–Hänchen (GH) and the Spin-Hall (SH) shifts are usually observed at planar interfaces. It has recently been shown that the transverse SH shift may also arise due to scattering of plane waves. Here, we show that analogous in-plane (longitudinal) shifts also exist in the scattering of plane waves from micro/nano systems. We study both the GH and the SH shifts in plasmonic metal nanoparticles/nanostructures and dielectric micro-particles employing a unified framework that utilizes the transverse components of the Poynting vector of the scattered wave. The results demonstrate that the interference of neighboring resonance modes in plasmonic nanostructures (e.g., electric dipolar and quadrupolar modes in metal spheres) leads to great enhancement of the GH shift in scattering from such systems. We also unravel interesting correlations between these shifts with the polarimetry parameters, diattenuation and retardance.||URI:||https://hdl.handle.net/10356/104871
|DOI:||10.1364/OL.39.004100||Schools:||School of Physical and Mathematical Sciences||Rights:||© 2014 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OL.39.004100]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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