Quantum critical electro-optic and piezo-electric nonlinearities

IF 45.8 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2025-10-23 DOI:10.1126/science.adx8657

Christopher P. Anderson, Giovanni Scuri, Aaron Chan, Sungjun Eun, Alexander D. White, Geun Ho Ahn, Christine Jilly, Amir Safavi-Naeini, Kasper Van Gasse, Lu Li, Jelena Vučković

引用次数: 0

Abstract

Although electro-optic (EO) nonlinearities are essential for many quantum and classical photonics applications, a major challenge is inefficient modulation in cryogenic environments. Guided by the connection between phase transitions and nonlinearity, we identify the quantum paraelectric perovskite SrTiO₃ as a strong cryogenic EO [>500 picometers per volt (pm/V)] and piezo-electric material (>90 picocoulombs per newton) at T = 5 K, at frequencies to at least 1 megahertz. Furthermore, by tuning SrTiO₃ toward quantum criticality, we more than double the EO and piezo-electric effects, demonstrating a linear Pockels coefficient above 1000 pm/V. Our results probe the link between quantum phase transitions, dielectric susceptibility, and nonlinearity, unlocking opportunities in cryogenic optical and mechanical systems and providing a framework for discovering new nonlinear materials.

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量子临界电光和压电非线性

虽然电光（EO）非线性对于许多量子和经典光子学应用是必不可少的，但低温环境下的低效调制是一个主要挑战。根据相变和非线性之间的联系，我们确定量子准电钙钛矿srtio3是一种强低温EO [>；500皮米/伏（pm/V）]和压电材料（>；90皮库仑/牛顿），在T = 5 K，频率至少为1兆赫兹。此外，通过将srtio3调谐到量子临界，我们将EO和压电效应提高了一倍以上，并证明了线性波克尔斯系数高于1000 pm/V。我们的研究结果探索了量子相变、介电磁化率和非线性之间的联系，为低温光学和机械系统提供了机会，并为发现新的非线性材料提供了框架。

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

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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