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IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-03-17 DOI:10.1016/j.optlastec.2025.112807

Lukas Ramalis , Simas Melnikas , Deividas Buinovskis , Tomas Tolenis

引用次数: 0

摘要

全内反射率取决于界面两侧的折射率之比。由于增益材料的折射率较低，在 YAG 激光系统中提高其角度范围具有挑战性。因此，我们提出了通过闪烁角沉积技术形成的多层二氧化硅材料纳米工程堆栈。与 YAG 相比，每层二氧化硅都是折射率较低的材料，因此可以达到低至 46 度角的全内反射率。这种涂层设计还采用了致密多层涂层，可将其连接到冷却系统，并在不同角度获得良好的光谱性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Enhancement of total internal reflection in Nd:YAG crystals by multilayer nanostructured coatings

Total internal reflectance depends on the ratio of refractive indexes on each side of the interface. Enhancement of its angular range is challenging in YAG laser systems due to the low index of gain material. Therefore, we propose the nanoengineered multilayer stack of silica material formed by glancing angle deposition technique. Each layer of silica has lower refractive index material compared with YAG and it allows to reach total internal reflectance at the angles down to 46 degrees. Such coating design is also over-coated with dense multilayer which allows to connect it to the cooling system and gain favorable spectral performance at different angles.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems