Enhancing Guided Second-Harmonic Light in Lithium Niobate Nanowires

Sergeyev, A; Geiss, R; Solntsev, AS; Sukhorukov, AA; Schrempel, F; Pertsch, T; Grange, R

Enhancing Guided Second-Harmonic Light in Lithium Niobate Nanowires

Sergeyev, A Geiss, R Solntsev, AS Sukhorukov, AA Schrempel, F Pertsch, T Grange, R

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: ACS Photonics, 2015, 2, (6), pp. 687-691
Issue Date:: 2015-06-17

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Field	Value	Language
dc.contributor.author	Sergeyev, A
dc.contributor.author	Geiss, R
dc.contributor.author	Solntsev, AS
dc.contributor.author	Sukhorukov, AA
dc.contributor.author	Schrempel, F
dc.contributor.author	Pertsch, T
dc.contributor.author	Grange, R
dc.date.accessioned	2021-04-08T12:13:52Z
dc.date.available	2021-04-08T12:13:52Z
dc.date.issued	2015-06-17
dc.identifier.citation	ACS Photonics, 2015, 2, (6), pp. 687-691
dc.identifier.issn	2330-4022
dc.identifier.issn	2330-4022
dc.identifier.uri	http://hdl.handle.net/10453/147905
dc.description.abstract	We experimentally demonstrate practical approaches to enhance second-harmonic (SH) generation in individual lithium niobate nanowires (NWs) with a sub-micrometer cross-section and length up to tens of micrometers. We establish that parametric interactions of guided modes propagating along the NW determine the SH output power, which can be therefore controlled by the NW length. We show that the SH power is increased by about 84 times at wavelengths corresponding to modal phase-matching. Importantly, at non-phase-matched wavelengths the SH power can be improved by a factor of up to 9.3 by adjusting the NW length with a focused ion beam. We also characterize SH emission directionality, which can be further tailored for applications in integrated optical circuits and nonlinear microscopy.
dc.language	English
dc.publisher	AMER CHEMICAL SOC
dc.relation.ispartof	ACS Photonics
dc.relation.isbasedon	10.1021/acsphotonics.5b00126
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0205 Optical Physics, 0206 Quantum Physics, 0906 Electrical and Electronic Engineering
dc.title	Enhancing Guided Second-Harmonic Light in Lithium Niobate Nanowires
dc.type	Journal Article
utslib.citation.volume	2
utslib.for	0205 Optical Physics
utslib.for	0206 Quantum Physics
utslib.for	0906 Electrical and Electronic Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2021-04-08T12:13:51Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	2
utslib.citation.issue	6

Abstract:

We experimentally demonstrate practical approaches to enhance second-harmonic (SH) generation in individual lithium niobate nanowires (NWs) with a sub-micrometer cross-section and length up to tens of micrometers. We establish that parametric interactions of guided modes propagating along the NW determine the SH output power, which can be therefore controlled by the NW length. We show that the SH power is increased by about 84 times at wavelengths corresponding to modal phase-matching. Importantly, at non-phase-matched wavelengths the SH power can be improved by a factor of up to 9.3 by adjusting the NW length with a focused ion beam. We also characterize SH emission directionality, which can be further tailored for applications in integrated optical circuits and nonlinear microscopy.

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http://hdl.handle.net/10453/147905