Domain growth in LiNbO3 with surface layer modified by soft proton exchange

被引：1

作者：

Savelyev, E. D. ^{[1
,2
]}

Akhmatkhanov, A. R. ^{[1
]}

Greshnyakov, E. D. ^{[1
]}

Abramov, A. S. ^{[1
]}

Tronche, H. ^{[2
]}

Doutre, F. ^{[2
]}

Lunghi, T. ^{[2
]}

Baldi, P. ^{[2
]}

Neradovskiy, M. M. ^{[2
]}

Shur, V. Ya ^{[1
]}

机构：

[1] Ural Fed Univ, Sch Nat Sci & Math, Ekaterinburg, Russia

[2] Univ Cote dAzur, Inst Phys Nice, CNRS, Nice, France

来源：

FERROELECTRICS | 2022年 / 592卷 / 01期

关键词：

Lithium niobate; proton exchange; polarization reversal; domain shape; correlated nucleation; LITHIUM-NIOBATE; TANTALATE; NANOTECHNOLOGY; CRYSTALS;

D O I：

10.1080/00150193.2022.2052247

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the study of domain growth in congruent LiNbO3 crystals with planar soft proton exchanged waveguides (CLN SPE). The spatial distribution of H ions was measured by confocal Raman microscopy. The growth of elongated irregular shape domains followed by slow domain widening was obtained. Domain approaching led to a change in the growth directions. Domain widening represented formation of submicron domains with depth of tens microns in front of the domain walls. Low threshold field is attributed to the surface composition gradient. The suppression of hexagonal domain growth is related to existence of the surface dielectric layer.

引用

页码：64 / 71

页数：8

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