相关实验视频
Updated: Jun 20, 2026
10:52
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
10.1K
高耗尽第二和生成使用领域工程薄膜尼酸盐波导
Chenyu Wang1, Mengwen Chen1, Xiao-Hui Tian1
1National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
Nanophotonics (Berlin, Germany)
|December 22, 2025
概括
研究人员开发了高质量的薄膜酸 (TFLN) 波导,用于有效的芯片上的非线性频率转换. 这一突破实现了高能量转换,为先进的光学应用铺平了道路.
科学领域:
- 集成的非线性光学.
- 光子学是指光子学的使用方法.
- 材料科学是一种材料科学.
背景情况:
- 薄膜酸 (TFLN) 为集成光学提供了强大的非线性特性.
- 在TFLN中的域工程对于非线性过程中的相匹配至关重要.
- 之前的设备实现了高长度规范化的效率,但由于制造限制,缺乏绝对的能量转换.
研究的目的:
- 为了在TFLN设备中实现有效的芯片上的非线性能量转换.
- 克服制造限制,阻碍绝对能量转换的制造限制.
- 开发具有较低损失,高质量的域工程TFLN波导,具有较长的交互长度.
主要方法:
- 利用离子束修剪 (IBT) 进行精确的制造.
- 实现了一个蚀刻-预抛光工作流程.
- 制造的低损耗,域工程 TFLN 波导具有延长的交互长度.
主要成果:
- 证明了总体第二和生成 (SHG) 效率为2,590%/W.
- 在连续波运行下实现了85.7%的高耗.
- 通过实验性表征证实了强大的非线性能量转换.
结论:
- 开发的TFLN波导使得芯片上能实现高效的非线性能量转换.
- 这些进步解决了在实际应用中绝对能量转换的需求.
- 这些结果有可能在经典和量子频率转换以及量子光产生方面取得突破.
相关概念视频
01:14Clamper Circuit
A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...
01:23Voltage Doubler Circuit
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.