Optical rotatory power of nonlinear potassium titanyl arsenate crystals measured using improved dual-wavelength polarimetry

IF 2.8 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Applied Crystallography Pub Date : 2025-07-15 DOI:10.1107/S1600576725004893

Mykola Shopa, Yaroslav Shopa

引用次数: 0

Abstract

An improved dual-wavelength high-accuracy polarimetric method was used to investigate the optical rotatory power (ORP) of potassium titanyl arsenate (KTiOAsO₄, KTA) crystals. Two He–Ne lasers with identical beam properties, operating at closely spaced wavelengths of 594 and 633 nm, were used for the measurement. The magnitude of the gyration tensor component is g₁₂ = 4.40(21) × 10⁻⁵, which corresponds to an ORP of ρ = 6.40 (31)° mm⁻¹, more than three times lower than the previously reported value. Calculations of the systematic error parameters from polarimetric studies for two directions of light propagation show that these KTA crystals exhibit high optical quality.

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改进双波长偏振法测量非线性砷酸钛钾晶体的旋光功率

采用改进的双波长高精度偏振法研究了砷酸钛钾（KTiOAsO4， KTA）晶体的旋光能力。两个具有相同光束特性的He-Ne激光器，在594和633 nm的紧密间隔波长下工作，用于测量。旋转张量分量的大小为g12 = 4.40（21） × 10−5，对应于ρ = 6.40（31）°mm−1的ORP，比先前报道的值低3倍以上。通过对两个方向光传播的偏振学研究计算出的系统误差参数表明，这些KTA晶体具有较高的光学质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Crystallography CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

7.80

自引率

3.30%

发文量

178

期刊介绍： Many research topics in condensed matter research, materials science and the life sciences make use of crystallographic methods to study crystalline and non-crystalline matter with neutrons, X-rays and electrons. Articles published in the Journal of Applied Crystallography focus on these methods and their use in identifying structural and diffusion-controlled phase transformations, structure-property relationships, structural changes of defects, interfaces and surfaces, etc. Developments of instrumentation and crystallographic apparatus, theory and interpretation, numerical analysis and other related subjects are also covered. The journal is the primary place where crystallographic computer program information is published.