钽酸锂薄膜微磁盘片上紫外线二次谐波的产生

IF 3.3 2区物理与天体物理 Q2 OPTICS Chinese Optics Letters Pub Date : 2023-01-01 DOI:10.3788/col202321.061902

Miao Xue, Xiongshuo Yan, Jiangwei Wu, Rui Ge, Tingge Yuan, Yuping Chen, Xianfeng Chen

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引用次数: 1

摘要

紧凑可靠的紫外光源因其在光学测量系统、高密度光存储和生物医学应用中的潜在应用而引起了人们的极大关注。我们展示了通过模态相位匹配在绝缘体上钽酸锂(LTOI)微盘中通过频率加倍产生紫外线。采用聚焦离子束(FIB)对直径为50 μ m的微圆盘进行磨铣，然后进行化学机械抛光(CMP)，使其表面和边缘光滑，可见波段的q因子达到2.74 × 10 5。实现了波长为384.3 nm的片上紫外相干光，在集成紫外光源平台上应用ltoi具有广阔的前景。

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On-chip ultraviolet second-harmonic generation in lithium-tantalate thin film microdisk

The compact and reliable ultraviolet (UV) source has attracted remarkable attention for its potential use in optical measurement systems, high-density optical storage, and biomedical applications. We demonstrate ultraviolet generation by frequency doubling in a lithium-tantalate-on-insulator (LTOI) microdisk via modal phase matching. The 50-μ m-diameter microdisk was milled by a focused ion beam (FIB) and followed by chemo-mechanical polishing (CMP) to smooth the disk surface and edge, and the Q-factor reaches 2.74 × 10 5 in the visible band. On-chip UV coherent light with a wavelength of 384.3 nm was achieved, which shows great promise for using LTOIs in integrated ultraviolet source platforms.

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来源期刊

Chinese Optics Letters 物理-光学

CiteScore

5.60

自引率

20.00%

发文量

180

审稿时长

2.3 months

期刊介绍： Chinese Optics Letters (COL) is an international journal aimed at the rapid dissemination of latest, important discoveries and inventions in all branches of optical science and technology. It is considered to be one of the most important journals in optics in China. It is collected by The Optical Society (OSA) Publishing Digital Library and also indexed by Science Citation Index (SCI), Engineering Index (EI), etc. COL is distinguished by its short review period (~30 days) and publication period (~100 days). With its debut in January 2003, COL is published monthly by Chinese Laser Press, and distributed by OSA outside of Chinese Mainland.