| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 1, 2006
|
|
|---|---|---|
| Article Number | 06023 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.2971/jeos.2006.06023 | |
| Published online | 14 November 2006 | |
Regular papers
Wide-band optical field concentrator for low-index core propagation
1
Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy
2
Dipartimento di Ingegneria dell’Ambiente e per lo Sviluppo Sostenibile, Politecnico di Bari - II Facoltà di Ingegneria, Viale del Turismo 8, 74100 Taranto, Italy
3
Charles M. Bowden Research Center, AMSRD-AMR-WS-ST, Redstone Arsenal, AL 35898-5000, USA
Received:
10
October
2006
We propose a novel chirped structure consisting of a low index polymer core bounded by modulated multilayer claddings, to realize an optical field concentrator with virtually zero propagation losses in a wide spectral range, independent of wave polarization. In spite of the absence of the total internal reflection mechanism, properly designed multilayer claddings ensure the achievement of unitary transmittance in a wide spectral range, including the widely used wavelengths for optical communications. Several cladding geometries obtained by varying the thicknesses of the cladding layers are reported and discussed.
Key words: Photonic crystal / polymer / Bragg reflection waveguide
© The Author(s) 2006. All rights reserved.
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