Towards high power, high repetition rate, broadband coherent light sources: development and applications

走向高功率、高重复率、宽带相干光源：开发和应用

• 批准号: RGPIN-2018-06039
• 负责人: Major, Arkady
• 金额: $ 2.48万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=714046
• 关键词: Towards; power; repetition; rate; broadband

Ultrashort pulses (10-15 s) of near-infrared laser light have found a large number of scientific, industrial and biomedical applications such as microscopy, spectroscopy, or laser eye surgery. To make the measurements fast and accurately, laser sources with both high average power and high repetition rate are needed. Unfortunately, currently available high power laser amplifiers or oscillators cannot simultaneously offer both of these properties. This is a serious drawback for the development of cost-effective commercial products as well as industrial and clinical applications. This grant application proposes to overcome this major limitation by using two recently demonstrated innovative solutions, an effective method to produce ultrashort pulses with high output power and the use of laser crystals with excellent properties for ultrashort pulse generation. The developed lasers will be able to produce ultrashort pulses of light with both high average output power and high repetition rate. The unique combination of these parameters will also enable generation of intense radiation in spectral windows ranging from the visible to terahertz wavelengths. This radiation will be used to develop unique instruments capable of fast imaging and rapid chemical analysis of various materials. Such capabilities are particularly important to the medical device and diagnostics as well as food and material processing industries. The funding requested in this grant application will support training of 8 graduate students (5 PhD and 3 MSc) and one postdoctoral fellow over the next 5 years who will work on development of the proposed laser technology. The proposed research program will involve collaborative work with other researchers from the University of Manitoba as well as from abroad. The students will receive cutting-edge training in laser, imaging and spectroscopy technologies, optical materials, detector, electronics and high-precision mechanics, data acquisition and analysis. Additional training will be also offered to highly qualified personnel at the undergraduate, graduate and postgraduate levels through supervision of undergraduate thesis, summer projects, and collaborative research activities.

近红外激光的Ultrashort脉冲（10-15 s）发现了大量的科学，工业和生物医学应用，例如显微镜，光谱或激光眼科手术。为了快速，准确地进行测量，需要具有高平均功率和高重复率的激光源。不幸的是，目前可用的高功率激光放大器或振荡器不能同时提供这两个属性。这是开发具有成本效益的商业产品以及工业和临床应用的严重缺点。该赠款应用建议通过使用两种最近证明的创新溶液来克服这一主要限制，这是一种有效的方法，可以产生具有高输出功率的超短脉冲，并使用具有极好特性的激光晶体，以实现超短脉冲的产生。开发的激光器将能够产生具有高平均输出功率和高重复速率的光脉冲。这些参数的独特组合还将使光谱窗口中产生强烈的辐射，从可见到terahertz波长。该辐射将用于开发能够快速成像和对各种材料快速化学分析的独特仪器。这种功能对于医疗设备和诊断以及食品和材料加工行业尤为重要。本赠款申请中要求的资金将支持对8名研究生（5博士学位和3个MSC）和一名博士后研究员的培训，并将在未来5年内研究拟议的激光技术。拟议的研究计划将涉及与曼尼托巴大学以及来自国外的其他研究人员的合作工作。学生将接受激光，成像和光谱技术，光学材料，检测器，电子和高精度力学，数据获取和分析的最先进培训。还将通过对本科论文，夏季项目和协作研究活动的监督，向本科，研究生和研究生级别的高素质人员提供额外的培训。