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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3989–3992

Bessel-like photonic nanojets from core-shell sub-wavelength spheres

David Grojo, Nicolas Sandeau, Luca Boarino, Catalin Constantinescu, Natascia De Leo, Michele Laus, and Katia Sparnacci  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3989-3992 (2014)
http://dx.doi.org/10.1364/OL.39.003989


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Abstract

It is accepted so far that the formation of photonic nanojets requires the use of large dielectric spheres (several wavelengths in diameter). Here we show both numerically and experimentally that similar effects can be obtained with properly engineered sub-wavelength core-shell colloids. The design of the spheres is strongly inspired by a far-field approach for the generation of Bessel beams.

© 2014 Optical Society of America

OCIS Codes
(230.4000) Optical devices : Microstructure fabrication
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Scattering

History
Original Manuscript: May 1, 2014
Revised Manuscript: June 3, 2014
Manuscript Accepted: June 3, 2014
Published: June 30, 2014

Citation
David Grojo, Nicolas Sandeau, Luca Boarino, Catalin Constantinescu, Natascia De Leo, Michele Laus, and Katia Sparnacci, "Bessel-like photonic nanojets from core-shell sub-wavelength spheres," Opt. Lett. 39, 3989-3992 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3989

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