Demonstration of longitudinally polarized optical needles

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Demonstration of longitudinally polarized optical needles. / Turquet, Léo; Zang, Xiaorun; Kakko, Joona Pekko; Lipsanen, Harri; Bautista, Godofredo; Kauranen, Martti.

In: Optics Express, Vol. 26, No. 21, 15.10.2018, p. 27572-27584.

Research output: Contribution to journalArticle

Harvard

Turquet, L, Zang, X, Kakko, JP, Lipsanen, H, Bautista, G & Kauranen, M 2018, 'Demonstration of longitudinally polarized optical needles', Optics Express, vol. 26, no. 21, pp. 27572-27584. https://doi.org/10.1364/OE.26.027572

APA

Turquet, L., Zang, X., Kakko, J. P., Lipsanen, H., Bautista, G., & Kauranen, M. (2018). Demonstration of longitudinally polarized optical needles. Optics Express, 26(21), 27572-27584. https://doi.org/10.1364/OE.26.027572

Vancouver

Turquet L, Zang X, Kakko JP, Lipsanen H, Bautista G, Kauranen M. Demonstration of longitudinally polarized optical needles. Optics Express. 2018 Oct 15;26(21):27572-27584. https://doi.org/10.1364/OE.26.027572

Author

Turquet, Léo ; Zang, Xiaorun ; Kakko, Joona Pekko ; Lipsanen, Harri ; Bautista, Godofredo ; Kauranen, Martti. / Demonstration of longitudinally polarized optical needles. In: Optics Express. 2018 ; Vol. 26, No. 21. pp. 27572-27584.

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@article{42ec00d7188049df99f85a34b91607ee,
title = "Demonstration of longitudinally polarized optical needles",
abstract = "Longitudinally polarized optical needles are beams that exhibit ultra-long depth of field, subwavelength transverse confinement, and polarization oriented along the longitudinal direction. Although several techniques have been proposed to generate such needles, their scarce experimental observations have been indirect and incomplete. Here, we demonstrate the creation and full three-dimensional verification of a longitudinally polarized optical needle. This needle is produced by generating a radially polarized Bessel-Gauss beam at the focus of a high numerical aperture microscope objective. Using three-dimensional spatial mapping of second-harmonic generation from a single vertically aligned GaAs nanowire, we directly verify such a longitudinally polarized optical needle's properties, which are formed at the focus. The needle exhibits a dominant polarization, which is oriented along the longitudinal direction, an ultra-long depth of field (30 λ), and high spatial homogeneity. These are in agreement with corresponding focal field calculations that use vector diffraction theory. Our findings open new opportunities for manipulation and utilization of longitudinally polarized optical needles.",
author = "L{\'e}o Turquet and Xiaorun Zang and Kakko, {Joona Pekko} and Harri Lipsanen and Godofredo Bautista and Martti Kauranen",
year = "2018",
month = "10",
day = "15",
doi = "10.1364/OE.26.027572",
language = "English",
volume = "26",
pages = "27572--27584",
journal = "Optics Express",
issn = "1094-4087",
number = "21",

}

RIS - Download

TY - JOUR

T1 - Demonstration of longitudinally polarized optical needles

AU - Turquet, Léo

AU - Zang, Xiaorun

AU - Kakko, Joona Pekko

AU - Lipsanen, Harri

AU - Bautista, Godofredo

AU - Kauranen, Martti

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Longitudinally polarized optical needles are beams that exhibit ultra-long depth of field, subwavelength transverse confinement, and polarization oriented along the longitudinal direction. Although several techniques have been proposed to generate such needles, their scarce experimental observations have been indirect and incomplete. Here, we demonstrate the creation and full three-dimensional verification of a longitudinally polarized optical needle. This needle is produced by generating a radially polarized Bessel-Gauss beam at the focus of a high numerical aperture microscope objective. Using three-dimensional spatial mapping of second-harmonic generation from a single vertically aligned GaAs nanowire, we directly verify such a longitudinally polarized optical needle's properties, which are formed at the focus. The needle exhibits a dominant polarization, which is oriented along the longitudinal direction, an ultra-long depth of field (30 λ), and high spatial homogeneity. These are in agreement with corresponding focal field calculations that use vector diffraction theory. Our findings open new opportunities for manipulation and utilization of longitudinally polarized optical needles.

AB - Longitudinally polarized optical needles are beams that exhibit ultra-long depth of field, subwavelength transverse confinement, and polarization oriented along the longitudinal direction. Although several techniques have been proposed to generate such needles, their scarce experimental observations have been indirect and incomplete. Here, we demonstrate the creation and full three-dimensional verification of a longitudinally polarized optical needle. This needle is produced by generating a radially polarized Bessel-Gauss beam at the focus of a high numerical aperture microscope objective. Using three-dimensional spatial mapping of second-harmonic generation from a single vertically aligned GaAs nanowire, we directly verify such a longitudinally polarized optical needle's properties, which are formed at the focus. The needle exhibits a dominant polarization, which is oriented along the longitudinal direction, an ultra-long depth of field (30 λ), and high spatial homogeneity. These are in agreement with corresponding focal field calculations that use vector diffraction theory. Our findings open new opportunities for manipulation and utilization of longitudinally polarized optical needles.

UR - http://www.scopus.com/inward/record.url?scp=85054966008&partnerID=8YFLogxK

U2 - 10.1364/OE.26.027572

DO - 10.1364/OE.26.027572

M3 - Article

VL - 26

SP - 27572

EP - 27584

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 21

ER -

ID: 29058203