Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars

Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars

An optimized focused ion beam process is used to fabricate micrometer-long LiNbO3 nanopillars with diameters varying between 150 and 325 nm. Polarimetric mappings of second harmonic generation from a wavelength of 850 nm demonstrate the ability to modify the polarization features of the nonlinear re...

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Main Authors: Mohammad Amin Baghban, Katia Gallo
Format: Article
Language:English
Published: AIP Publishing LLC 2016-09-01
Series:APL Photonics
Online Access:http://dx.doi.org/10.1063/1.4953670
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spelling doaj-63845c8de0524dc19f8ea5334801eef12020-11-24T21:56:15ZengAIP Publishing LLCAPL Photonics2378-09672016-09-0116061302061302-510.1063/1.4953670007603APPImpact of longitudinal fields on second harmonic generation in lithium niobate nanopillarsMohammad Amin Baghban0Katia Gallo1Department of Applied Physics, School of Engineering Sciences, KTH–Royal Institute of Technology, Stockholm SE-106 91, SwedenDepartment of Applied Physics, School of Engineering Sciences, KTH–Royal Institute of Technology, Stockholm SE-106 91, SwedenAn optimized focused ion beam process is used to fabricate micrometer-long LiNbO3 nanopillars with diameters varying between 150 and 325 nm. Polarimetric mappings of second harmonic generation from a wavelength of 850 nm demonstrate the ability to modify the polarization features of the nonlinear response through a fine adjustment of the pillar size. The effect is ascribed to the non-negligible contribution of the longitudinal fields associated with sub-wavelength light confinement in the LiNbO3 nanopillars. The results also highlight the importance of a fine control over the nanopillar size in order to effectively engineer their nonlinear response.http://dx.doi.org/10.1063/1.4953670
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad Amin Baghban
Katia Gallo
spellingShingle Mohammad Amin Baghban
Katia Gallo
Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
APL Photonics
author_facet Mohammad Amin Baghban
Katia Gallo
author_sort Mohammad Amin Baghban
title Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
title_short Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
title_full Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
title_fullStr Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
title_full_unstemmed Impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
title_sort impact of longitudinal fields on second harmonic generation in lithium niobate nanopillars
publisher AIP Publishing LLC
series APL Photonics
issn 2378-0967
publishDate 2016-09-01
description An optimized focused ion beam process is used to fabricate micrometer-long LiNbO3 nanopillars with diameters varying between 150 and 325 nm. Polarimetric mappings of second harmonic generation from a wavelength of 850 nm demonstrate the ability to modify the polarization features of the nonlinear response through a fine adjustment of the pillar size. The effect is ascribed to the non-negligible contribution of the longitudinal fields associated with sub-wavelength light confinement in the LiNbO3 nanopillars. The results also highlight the importance of a fine control over the nanopillar size in order to effectively engineer their nonlinear response.
url http://dx.doi.org/10.1063/1.4953670
work_keys_str_mv AT mohammadaminbaghban impactoflongitudinalfieldsonsecondharmonicgenerationinlithiumniobatenanopillars
AT katiagallo impactoflongitudinalfieldsonsecondharmonicgenerationinlithiumniobatenanopillars
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