2024-03-29T04:38:08Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/48692016-09-08T12:28:04Zcom_10261_113com_10261_4com_10261_4872col_10261_366col_10261_4873
DIGITAL.CSIC
author
Ioanid, S.
author
Ming, Bai
author
Pons Aglio, Alicia
author
Corredera, Pedro
author
García García, Nicolás
2008-06-08T23:36:08Z
2008-06-08T23:36:08Z
2005-05-23
arXiv:cond-mat/0505538v1 [cond-mat.other]Opt. Lett. 30, 2317-2319 (2005)
0146-9592
http://hdl.handle.net/10261/4869
We present experimental and theoretical work showing that a flat metallic slab can collimate and focus light impinging on the slab from a punctual source. The effect is optimised when the radiation is around the bulk, not at the surface, plasma frequency. And the smaller the imaginary part of the permittivity is, the better the collimation. Experiments for Ag in the visible as well as calculations are presented. We also discuss the interesting case of the Aluminium whose imaginary part of the permittivity is very small at the plasma frequency in UV radiation. Generalization to other materials and radiations are also discussed.
eng
openAccess
Light collimation
Metal Permittivity
Silver
Aluminium
Integrated optics : Guided waves
Optoelectronics : Photonic integrated circuits
Light Collimation and Focusing by a Thin Flat Metallic Slab
preprint
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URL
https://digital.csic.es/bitstream/10261/4869/1/Light_Collimation.pdf
File
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Light_Collimation.pdf
URL
https://digital.csic.es/bitstream/10261/4869/4/Light_Collimation.pdf.txt
File
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Light_Collimation.pdf.txt