Spontaneous and electric field induced quadratic optical nonlinearity in ferroelectric crystals AgNa(NO2)2

被引：10

作者：

Kityk, A. V. ^{[1
]}

Czaplicki, R. ^{[2
]}

Kloepperpieper, A. ^{[3
]}

Andrushchak, A. S. ^{[4
]}

Sahraoui, B. ^{[2
]}

机构：

[1] Czestochowa Tech Univ, Fac Elect Engn, PL-42200 Czestochowa, Poland

[2] Univ Angers, CNRS, FRE 2988, Lab POMA, F-49045 Angers, France

[3] Univ Saarland, D-66041 Saarbrucken, Germany

[4] Lviv Polytech Natl Univ, UA-79013 Lvov, Ukraine

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 06期

关键词：

ferroelectric Curie temperature; ferroelectric materials; ferroelectric transitions; gold compounds; nonlinear optical susceptibility; optical harmonic generation; optical materials; optical phase matching; sodium compounds; PHASE-TRANSITION; POLARIZATION;

D O I：

10.1063/1.3315941

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the second harmonic generation (SHG) in ferroelectric AgNa(NO2)(2) crystals resulting from the spontaneous and electric field induced polarizations. Relatively high effective nonlinear optic (NLO) susceptibility is combined in this crystals with the existing several phase matching geometries of NLO interaction. Anomalously large response of SHG with respect to an applied electric field has been found in the vicinity of the paraelectric-to-ferroelectric phase transition. The behavior of NLO properties in the ferroelectric phase and especially in the region of the Curie point is discussed within the phenomenological theory.

引用

页数：3

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