Measuring lifetime and magnitude of the optical Kerr-effect in tailored bandgap materials

测量定制带隙材料中光学克尔效应的寿命和强度

• 批准号: 211196355
• 负责人: Professor Dr. Uwe Morgner
• 金额: --
• 依托单位: Institut für Quantenoptik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/211196355?language=en
• 关键词: Measuring; lifetime; magnitude; optical; Kerr

During the first period of the project we had been able to get the first experimental evidence for a non-instantaneous response of the third-order polarization in dielectrics. We investigated the third harmonic generation using 6-fs pulses from an infrared oscillator. For systematic evaluation of the response time, we used ternary mixture oxides as nonlinear media with tunable bandgaps.For the follow-up period a new type of experiment is proposed, where the non-instantaneous lifetime of the optical Kerr effect is revealed via spectral interferometry. For that purpose, a new few-cycle source in the UV is used to induce the Kerr effect in thick ternary oxide layers with laser wavelengths in the vicinity of the materials bandgap. The measurements are backed up with solutions of the delayed nonlinear propagation equation.

在该项目的第一阶段，我们首次获得了介质中三阶极化的非瞬时响应的实验证据。我们研究了利用红外振荡器产生的6-fs脉冲产生的三次谐波。为了系统地评估响应时间，我们使用三元混合氧化物作为带隙可调的非线性介质，在后续的实验中，提出了一种新的实验类型，其中通过光谱干涉测量揭示了光学克尔效应的非瞬时寿命。为此，在材料禁带附近用一种新的几个周期的紫外光光源在激光波长附近的三元氧化物厚层中诱导克尔效应。延迟的非线性传播方程的解支持了测量结果。

项目成果

Very thick mixture oxide ion beam sputtering films for investigation of nonlinear material properties

用于研究非线性材料特性的非常厚的混合氧化物离子束溅射薄膜

• DOI: 10.1051/epjap/2017170239
• 发表时间: 2017
• 期刊: European Physical Journal-applied Physics
• 影响因子: 1
• 作者: M. Steinecke;K. Kiedrowski;M. Jupé;D. Ristau
• 通讯作者: D. Ristau

Study of Third Harmonic Generation From Thin Gradient HfxAlyOz Layers

薄梯度HfxAlyOz层三次谐波产生的研究

• DOI: 10.1109/cleo/europe-eqec52157.2021.9542234
• 发表时间: 2021
• 期刊: 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
• 作者: David Zuber;Sven Kleinert;Ayhan Tajalli;Morten Steinecke;Marco Jupé;Lars Jensen;Detlev Ristau;Uwe Morgner
• 通讯作者: Uwe Morgner

Measurement of the nonlinear refractive index in optical thin films

光学薄膜非线性折射率的测量

• DOI: 10.1117/12.2281127
• 发表时间: 2017
• 作者: M. Steinecke;K. Kiedrowski;M. Jupé;D. Ristau
• 通讯作者: D. Ristau

Measurement setup for the determination of the nonlinear refractive index of thin films with high nonlinearity

用于测定高非线性薄膜非线性折射率的测量装置

• DOI: 10.1117/12.2500341
• 发表时间: 2018
• 作者: M. Steinecke;T. Kellermann;M. Jupé;D. Ristau;L. Jensen
• 通讯作者: L. Jensen

Third harmonic generation from thin gradient ternary mixture layers

从薄梯度三元混合物层产生三次谐波

• DOI: 10.1364/cleo_at.2021.jth3a.70
• 发表时间: 2021
• 期刊: 2021 Conference on Lasers and Electro-Optics (CLEO)
• 作者: D. Zuber;S. Kleinert;A. Tajalli;M. Steinecke;M. Jupé;L. Jensen;D. Ristau;U. Morgner
• 通讯作者: U. Morgner