Nonlinear Optical Response in Single Alkaline Niobate Nanowires

Dutto, Fabrizia; Raillon, Camille; Schenk, Kurt J.; Radenović, Aleksandra

doi:10.1021/nl201085b

Cited by 145 publications

(118 citation statements)

References 26 publications

(39 reference statements)

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“…Moreover the averaged SHG signals have been scaled over the wire volume. By comparing the obtained values appears that, as summarized in Table 1, LiNbO 3 displays the highest nonlinear response while NaNbO 3 the smallest [5] . Shown data are normalized over the LiNbO 3 SHG average value.…”

Section: Methodsmentioning

confidence: 92%

“…The fabrication of alkaline niobates in form of nanowires have been achieved through either hydrothermal synthesis process, for NaNbO 3 and KNbO 3 nanowires [2][3][4][5][6] , or molten salt synthesis one, for LiNbO 3 nanowires [7] . The overall performance of the three types of wires is compared: by combining the obtained objects with our optical trap, nanowires can be trapped, manipulated, rotated and their emission of a SHG signal can detected.…”

Section: Introductionmentioning

confidence: 99%

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Alkaline niobate nanowires as opto-mechanical probes

Dutto

Radenović

2012

SPIE Proceedings

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Perovskite alkaline niobate (XNbO 3 ) nanowires are attracting lots of attention having a variety of interesting properties such as significant nonlinear optical response, pronounced birefringence, considerable piezoelectric, pyroelectric, photorefractive, and photocatalytic response, as well as superior mechanical and chemical stability. Their ability to efficiently generate second harmonic signals (SHG) and their birefringence allow the use of these nanostructures as local mechano-optical probes for single molecule detection.To assess which type of nanowires is suitable for specific application, we performed a comparative study on the nonlinear optical response of the different types of chemically synthesized alkaline niobate nanowires: sodium niobate (NaNbO 3 ), potassium niobate (KNbO 3 ) and lithium niobate (LiNbO 3 ) nanowires. An optical trap setup has been used to demonstrate the possibility to steadily trap the nanowires, their ability to generate high second harmonic signals, to waveguide this signal and to be rotated under a highly focused laser beam with changing polarization. Different applications are suggested for the three materials, such as LiNbO 3 nanowires as imaging markers, while KNbO 3 and NaNbO 3 nanowires for trapping and torque experiments and NaNbO 3 nanowires to waveguide SHG light. Functionalization of the XNbO 3 nanowires has been studied and successfully implemented. This is a first crucial step toward their use in biomedical imaging and single molecule applications.

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Section: Methodsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Alkaline niobate nanowires as opto-mechanical probes

Dutto

Radenović

2012

SPIE Proceedings

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“…On the other hand, the smallest waveguides presented in this work are intended to demonstrate that the fabrication of nanoscale high-aspect ratio structures with the widths down to 50 nm and micrometer lengths is feasible. The optical functionality of these small structures, including waveguiding and nonlinear optical properties, can be expected to be comparable to similar and smaller LiNbO 3 structures that are produced by chemical synthesis [32]. Detrimental effects originating from the IBEE patterning and potentially affecting the crystal structure and the optical properties of the small waveguides were fully removed in the final thermal annealing step [47].…”

Section: Optical Testing Of the Nanowaveguidesmentioning

confidence: 99%

Fabrication of free-standing lithium niobate nanowaveguides down to 50 nm in width

Geiß¹,

Sergeyev²,

Hartung³

et al. 2015

Nanotechnology

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Nonlinear optical nanoscale waveguides are a compact and powerful platform for efficient wavelength conversion. The free-standing waveguide geometry opens a range of applications in microscopy for local delivery of light, where in situ wavelength conversion helps to overcome various wavelength-dependent issues, such as biological tissue damage. In this paper, we present an original patterning method for high-precision fabrication of free-standing nanoscale waveguides based on lithium niobate, a material with a strong second-order nonlinearity and a broad transparency window covering the visible and mid-infrared wavelength ranges. The fabrication process combines electron-beam lithography with ion-beam enhanced etching and produces nanowaveguides with lengths from 5 to 50 μm, widths from 50 to 1000 nm and heights from 50 to 500 nm, each with a precision of few nanometers. The fabricated nanowaveguides are tested in an optical characterization experiment showing efficient second-harmonic generation.

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“…Lithium niobate (LiNbO 3 ) is one of the most versatile nonlinear-optic materials with an unusually high SHG coefficient [19]. Although many groups [20][21][22][23][24] report the synthesis and characterization of different types of LiNbO 3 , rarely report demonstrates effective shape control in the production of single-crystalline nanoparticles and addresses the applications in biological markers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of cubic LiNbO3 nanoparticles and their application in vitro bioimaging

et al. 2014

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Stoichiometric LiNbO 3 nanoparticles with regular rhombohedral morphology and high crystallinity were synthesized through a molten salt approach. The assynthesized cubic LiNbO 3 nanoparticles as nanoprobes for long-term imaging in vitro were investigated. The as-synthesized nanoprobes exhibit unique properties of long-term observation without photobleaching, flexibility in excitation wavelength, and excellent photostability. The biocompatibility of LiNbO 3 nanoprobes was determined by in vitro assay of cytotoxicity. All the tested samples presented no obvious toxicity.

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Nonlinear Optical Response in Single Alkaline Niobate Nanowires

Cited by 145 publications

References 26 publications

Alkaline niobate nanowires as opto-mechanical probes

Alkaline niobate nanowires as opto-mechanical probes

Fabrication of free-standing lithium niobate nanowaveguides down to 50 nm in width

Synthesis of cubic LiNbO3 nanoparticles and their application in vitro bioimaging

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