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

David Grojo; Nicolas Sandeau; Luca Boarino; Catalin Constantinescu; Natascia De Leo; Michele Laus; Katia Sparnacci

doi:10.1364/OL.39.003989

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

David Grojo, Nicolas Sandeau, Luca Boarino, Catalin Constantinescu, Natascia De Leo, Michele Laus, Katia Sparnacci

Dipartimento di Scienze e Innovazione Tecnologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

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.

Lingua originale	Inglese
pagine (da-a)	3989-3992
Numero di pagine	4
Rivista	Optics Letters
Volume	39
Numero di pubblicazione	13
DOI	https://doi.org/10.1364/OL.39.003989
Stato di pubblicazione	Pubblicato - 1 lug 2014

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10.1364/OL.39.003989

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title = "Bessel-like photonic nanojets from core-shell sub-wavelength spheres",

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.",

author = "David Grojo and Nicolas Sandeau and Luca Boarino and Catalin Constantinescu and {De Leo}, Natascia and Michele Laus and Katia Sparnacci",

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AU - Grojo, David

AU - Sandeau, Nicolas

AU - Boarino, Luca

AU - Constantinescu, Catalin

AU - De Leo, Natascia

AU - Laus, Michele

AU - Sparnacci, Katia

PY - 2014/7/1

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N2 - 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.

AB - 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.

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DO - 10.1364/OL.39.003989

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JF - Optics Letters

IS - 13

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

Abstract

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