在无机矿微腔中高Q因子单模激光,具有微聚焦场封闭的无机矿微腔
Shuangshuang Tian1, Qi Wang1, Shuang Liang2
1Key Laboratory of Micro & Nano Photonic Structures, Shanghai Engineering Research Centre of Ultra Precision Optical Manufacturing, Department of Optical Science and Engineering, School of Information Science and Technology, Fudan University, 200433 Shanghai, China.
Nano letters
|January 16, 2024
概括
研究人员开发了一个带有微镜头的矿微腔,用于增强单模式激光. 这种微聚焦配置实现了高Q因子和Purcell因子,推进了芯片上的光源.
科学领域:
- 光子学是指光子学的使用方法.
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 高质量的 (高Q) 单模激光对于微尺度集成光源至关重要.
- 一个关键的挑战是平衡Q因子增强与光场定位以提高激光发射率.
研究的目的:
- 为了制造一个矿微腔,与微镜头集成,用于三维光场定制.
- 用这种微聚焦配置来展示高性能单模激光.
主要方法:
- 制造一个零维的矿微腔.
- 与无损的压缩微镜头集成,以限制光场.
- 线性和非线性 (双光子) 激光的演示.
主要成果:
- 达到16700的高Q系数,高极化 (99.6%),以及11.40.的普尔塞尔系数.
- 在高重复脉冲接下展示了单模式激光.
- 减少模式体积到~3.66μm3,并通过3D光束限制抑制损失.
结论:
- 微透镜微腔显著提高了激光的性能,超过了大多数报道的矿微腔.
- 这种方法为开发电动驱动的芯片微激光器提供了有前途的途径.
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