Advanced techniques for efficient frequency conversion of laser radiation

激光辐射高效频率转换的先进技术

• 批准号: 478949-2015
• 负责人: Major, Arkady
• 金额: $ 12.64万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641894
• 关键词: Advanced; techniques; efficient; frequency; conversion

Laser material processing is widely used in semiconductor, portable electronics and medical device industries that have rapidly growing multi-billion dollar markets. High-precision laser processing typically requires pulsed (picosecond, 10^-12 s) radiation in the ultraviolet or visible wavelength ranges. Today such radiation is produced by frequency conversion of infrared laser radiation using nonlinear crystals with moderate efficiency. The goal of this Strategic project grant is to develop a new revolutionary frequency conversion technology that will overcome this challenge and increase conversion efficiency to >90%. The approach will be based on the fundamental properties of the autoresonance effect in nonlinear crystals which was recently observed by one of the applicants. This technology will make current laser systems several times more efficient. In addition, this technique is very robust and can be implemented using conventional nonlinear crystals in turn paving the way to many industrial laser material processing applications. The results of this project will redefine state-of-the-art in laser frequency conversion, creating a new paradigm and placing Canada in a position of international leadership. The benefits of the proposed approach, along with the simplicity of the design and its implementation, attracted genuine interest and strong support from two leading Canadian companies that manufacture industrial laser systems: Passat Ltd. and Attodyne. Both companies will be actively involved in this project and are well positioned to commercialize the developed technology, which can generate multi-million revenues. Finally, the new knowledge generated from this project and the training of highly qualified personnel (two PhD students, four MSc students, six undergraduate summer students, and two postdoctoral fellows) associated with the different stages of this work will certainly contribute to enhance Canada's global competitiveness, especially in such strategically important high-technology manufacturing sectors as portable electronics, semiconductor and medical devices.

激光材料处理被广泛用于半导体，便携式电子设备和医疗设备行业，这些工业迅速增长了数十亿美元的市场。高精度激光处理通常需要在紫外线或可见波长范围内进行脉冲（Picsecond，10^-12 s）辐射。如今，这种辐射是通过使用中等效率的非线性晶体对红外激光辐射的频率转化产生的。该战略项目赠款的目标是开发一种新的革命性频率转换技术，该技术将克服这一挑战并将转换效率提高到90％。该方法将基于非线性晶体中自动兑换效应的基本特性，这是一位申请人最近观察到的。该技术将使当前的激光系统效率更高。此外，该技术非常强大，可以使用常规的非线性晶体来实施，反过来铺平了许多工业激光材料处理应用。该项目的结果将重新定义激光频率转换中的最先进，创建新的范式，并使加拿大处于国际领导地位。拟议方法的好处，以及设计的简单性及其实施，引起了两家制造工业激光系统的加拿大领先公司的真正兴趣和强有力的支持：Passat Ltd.和Attodyne。两家公司都将积极参与该项目，并且可以很好地将开发的技术商业化，这可以产生数百万收入。最后，与该项目的高素质人员（两名博士生，四名学生，六名本科夏季学生和两个博士后研究员）的培训相关的新知识肯定会增强加拿大的全球竞争力，尤其是在这类战略性重要的高技术制造商中，有助于增强加拿大的全球竞争力，尤其是在诸如Portable Pottable Poweronics，Medical Devices，Semsicondoctors和Medical Device。