All-dielectric metasurface for optical focusing

E. Pisano; Fabrizio Silvestri; G. Gerini; V. Lancellotti; V. Galdi

All-dielectric metasurface for optical focusing

E. Pisano
, Fabrizio Silvestri
, G. Gerini
, V. Lancellotti
, V. Galdi

Electromagnetics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

We propose the design of a dielectric flat lens for visible wavelengths, capable of efficiently focus the incident field at a given distance. Our approach relies on the recently proposed exploitation of high-index dielectric resonators with spectrally overlapping electric and magnetic dipole resonances of equal strength. This allows the design of “metasurfaces” characterized by a nearly-full transmission and phase coverage of 360°. Our numerical results confirm that this type of lenses is capable to manipulate and efficiently focus light with low absorption losses. Furthermore it is directly integrable into a nanophotonic system, thanks to its low profile compared to traditional lenses.

Original language	English
Title of host publication	Proceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	1-4
ISBN (Print)	978-88-907018-5-6
Publication status	Published - 2015
Event	9th European Conference on Antennas and Propagation (EuCAP 2015) - Lisbon, Portugal Duration: 13 May 2015 → 17 May 2015 Conference number: 9 http://www.eucap2015.org/

Conference

Conference	9th European Conference on Antennas and Propagation (EuCAP 2015)
Abbreviated title	EuCAP 2015
Country/Territory	Portugal
City	Lisbon
Period	13/05/15 → 17/05/15
Internet address	http://www.eucap2015.org/

Cite this

@inproceedings{d5505c73149d43c99fb07a05e6485499,

title = "All-dielectric metasurface for optical focusing",

abstract = "We propose the design of a dielectric flat lens for visible wavelengths, capable of efficiently focus the incident field at a given distance. Our approach relies on the recently proposed exploitation of high-index dielectric resonators with spectrally overlapping electric and magnetic dipole resonances of equal strength. This allows the design of “metasurfaces” characterized by a nearly-full transmission and phase coverage of 360°. Our numerical results confirm that this type of lenses is capable to manipulate and efficiently focus light with low absorption losses. Furthermore it is directly integrable into a nanophotonic system, thanks to its low profile compared to traditional lenses.",

author = "E. Pisano and Fabrizio Silvestri and G. Gerini and V. Lancellotti and V. Galdi",

year = "2015",

language = "English",

isbn = "978-88-907018-5-6",

pages = "1--4",

booktitle = "Proceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "9th European Conference on Antennas and Propagation (EuCAP 2015), EuCAP 2015 ; Conference date: 13-05-2015 Through 17-05-2015",

url = "http://www.eucap2015.org/",

}

Pisano, E, Silvestri, F, Gerini, G, Lancellotti, V & Galdi, V 2015, All-dielectric metasurface for optical focusing. in Proceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal. Institute of Electrical and Electronics Engineers, Piscataway, pp. 1-4, 9th European Conference on Antennas and Propagation (EuCAP 2015), Lisbon, Portugal, 13/05/15.

All-dielectric metasurface for optical focusing. / Pisano, E.; Silvestri, Fabrizio; Gerini, G. et al.
Proceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal. Piscataway: Institute of Electrical and Electronics Engineers, 2015. p. 1-4.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - All-dielectric metasurface for optical focusing

AU - Pisano, E.

AU - Silvestri, Fabrizio

AU - Gerini, G.

AU - Lancellotti, V.

AU - Galdi, V.

N1 - Conference code: 9

PY - 2015

Y1 - 2015

N2 - We propose the design of a dielectric flat lens for visible wavelengths, capable of efficiently focus the incident field at a given distance. Our approach relies on the recently proposed exploitation of high-index dielectric resonators with spectrally overlapping electric and magnetic dipole resonances of equal strength. This allows the design of “metasurfaces” characterized by a nearly-full transmission and phase coverage of 360°. Our numerical results confirm that this type of lenses is capable to manipulate and efficiently focus light with low absorption losses. Furthermore it is directly integrable into a nanophotonic system, thanks to its low profile compared to traditional lenses.

AB - We propose the design of a dielectric flat lens for visible wavelengths, capable of efficiently focus the incident field at a given distance. Our approach relies on the recently proposed exploitation of high-index dielectric resonators with spectrally overlapping electric and magnetic dipole resonances of equal strength. This allows the design of “metasurfaces” characterized by a nearly-full transmission and phase coverage of 360°. Our numerical results confirm that this type of lenses is capable to manipulate and efficiently focus light with low absorption losses. Furthermore it is directly integrable into a nanophotonic system, thanks to its low profile compared to traditional lenses.

M3 - Conference contribution

SN - 978-88-907018-5-6

SP - 1

EP - 4

BT - Proceedings of the 9th European Conference on Antennas and Propagation (EUCAP 2015), 12-17 April 2015, Lisbon, Portugal

PB - Institute of Electrical and Electronics Engineers

CY - Piscataway

T2 - 9th European Conference on Antennas and Propagation (EuCAP 2015)

Y2 - 13 May 2015 through 17 May 2015

ER -

All-dielectric metasurface for optical focusing

Abstract

Conference

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