A full vectorial mapping of nanophotonic light fields

B. le Feber; J. E. Sipe; M. Wulf; L. Kuipers; N. Rotenberg

doi:10.1038/s41377-019-0124-3

A full vectorial mapping of nanophotonic light fields

B. le Feber^*, J. E. Sipe, M. Wulf, L. Kuipers, N. Rotenberg

^*Corresponding author for this work

Quantop

5 Citations (Scopus)

8 Downloads (Pure)

Abstract

Light is a union of electric and magnetic fields, and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures. There, complicated electric and magnetic fields varying over subwavelength scales are generally present, which results in photonic phenomena such as extraordinary optical momentum, superchiral fields, and a complex spatial evolution of optical singularities. An understanding of such phenomena requires nanoscale measurements of the complete optical field vector. Although the sensitivity of near-field scanning optical microscopy to the complete electromagnetic field was recently demonstrated, a separation of different components required a priori knowledge of the sample. Here, we introduce a robust algorithm that can disentangle all six electric and magnetic field components from a single near-field measurement without any numerical modeling of the structure. As examples, we unravel the fields of two prototypical nanophotonic structures: a photonic crystal waveguide and a plasmonic nanowire. These results pave the way for new studies of complex photonic phenomena at the nanoscale and for the design of structures that optimize their optical behavior.

Original language	English
Article number	28
Journal	Light: Science and Applications
Volume	8
Issue number	1
Number of pages	7
ISSN	2095-5545
DOIs	https://doi.org/10.1038/s41377-019-0124-3
Publication status	Published - 1 Dec 2019

Access to Document

10.1038/s41377-019-0124-3

s41377-019-0124-3Final published version, 1.03 MBLicence: CC BY

Cite this

@article{572d3cd9768b4f7daa89621b73056d64,

title = "A full vectorial mapping of nanophotonic light fields",

abstract = "Light is a union of electric and magnetic fields, and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures. There, complicated electric and magnetic fields varying over subwavelength scales are generally present, which results in photonic phenomena such as extraordinary optical momentum, superchiral fields, and a complex spatial evolution of optical singularities. An understanding of such phenomena requires nanoscale measurements of the complete optical field vector. Although the sensitivity of near-field scanning optical microscopy to the complete electromagnetic field was recently demonstrated, a separation of different components required a priori knowledge of the sample. Here, we introduce a robust algorithm that can disentangle all six electric and magnetic field components from a single near-field measurement without any numerical modeling of the structure. As examples, we unravel the fields of two prototypical nanophotonic structures: a photonic crystal waveguide and a plasmonic nanowire. These results pave the way for new studies of complex photonic phenomena at the nanoscale and for the design of structures that optimize their optical behavior.",

author = "{le Feber}, B. and Sipe, {J. E.} and M. Wulf and L. Kuipers and N. Rotenberg",

year = "2019",

month = dec,

day = "1",

doi = "10.1038/s41377-019-0124-3",

language = "English",

volume = "8",

journal = "Light: Science and Applications",

issn = "2095-5545",

publisher = "Nature Publishing Group",

number = "1",

}

TY - JOUR

T1 - A full vectorial mapping of nanophotonic light fields

AU - le Feber, B.

AU - Sipe, J. E.

AU - Wulf, M.

AU - Kuipers, L.

AU - Rotenberg, N.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Light is a union of electric and magnetic fields, and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures. There, complicated electric and magnetic fields varying over subwavelength scales are generally present, which results in photonic phenomena such as extraordinary optical momentum, superchiral fields, and a complex spatial evolution of optical singularities. An understanding of such phenomena requires nanoscale measurements of the complete optical field vector. Although the sensitivity of near-field scanning optical microscopy to the complete electromagnetic field was recently demonstrated, a separation of different components required a priori knowledge of the sample. Here, we introduce a robust algorithm that can disentangle all six electric and magnetic field components from a single near-field measurement without any numerical modeling of the structure. As examples, we unravel the fields of two prototypical nanophotonic structures: a photonic crystal waveguide and a plasmonic nanowire. These results pave the way for new studies of complex photonic phenomena at the nanoscale and for the design of structures that optimize their optical behavior.

AB - Light is a union of electric and magnetic fields, and nowhere is the complex relationship between these fields more evident than in the near fields of nanophotonic structures. There, complicated electric and magnetic fields varying over subwavelength scales are generally present, which results in photonic phenomena such as extraordinary optical momentum, superchiral fields, and a complex spatial evolution of optical singularities. An understanding of such phenomena requires nanoscale measurements of the complete optical field vector. Although the sensitivity of near-field scanning optical microscopy to the complete electromagnetic field was recently demonstrated, a separation of different components required a priori knowledge of the sample. Here, we introduce a robust algorithm that can disentangle all six electric and magnetic field components from a single near-field measurement without any numerical modeling of the structure. As examples, we unravel the fields of two prototypical nanophotonic structures: a photonic crystal waveguide and a plasmonic nanowire. These results pave the way for new studies of complex photonic phenomena at the nanoscale and for the design of structures that optimize their optical behavior.

UR - http://www.scopus.com/inward/record.url?scp=85062612935&partnerID=8YFLogxK

U2 - 10.1038/s41377-019-0124-3

DO - 10.1038/s41377-019-0124-3

M3 - Letter

C2 - 30854200

AN - SCOPUS:85062612935

SN - 2095-5545

VL - 8

JO - Light: Science and Applications

JF - Light: Science and Applications

IS - 1

M1 - 28

ER -

A full vectorial mapping of nanophotonic light fields

Abstract

Access to Document

Other files and links

Fingerprint

Cite this