在连续波和室温下从稀土元素中采用四和五光子上转换激光.
Bo Jiang1, Yuchan Hu1, Linhao Ren1
1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
研究人员使用化的微球同时实现了四和五光子上转换激光器. 这一突破证明了在室温下由低能光子有效地产生短波激光.
科学领域:
- 光子学 是一个光子学.
- 材料科学 材料科学 材料科学
- 量子光学是一种量子光学.
背景情况:
- 稀土元素提供了长寿命的中间能量水平,适合多光子上升转换.
- 多光子向上转换使反斯托克斯激光实现,而无需严格相位匹配或高功率.
研究的目的:
- 为了展示同时使用的四和五光子上转换激光器.
- 为了使用低能光子实现高效的短波长激光生成.
- 为了制造一个高质量的因子微球激光器.
主要方法:
- 制造具有高内在质量因子 (1.2 × 10 ^ 8) 的氧化微球.
- 在1535 nm的连续波 (CW) 激发.
- 观察和描述四和五光子向上转换激光.
主要成果:
- 在室温下实现了同时使用四和五光子上转换激光器.
- 超低激光值为176μW (四光子) 和600μW (五光子) 记录下来.
- 微激光器显示出稳定的激光强度.
结论:
- 这项工作代表了在室温下CW送下从稀土元素中采用四和五光子上转换激光的首次单独演示.
- 这些发现为开发高性能短波长激光器提供了有希望的途径.
- 从低能光子激发来进行高效的升级转换激光是可行的.
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