MRI: Development of a Broadband Time-Resolved Magneto-Optical and Second Harmonic Generation Magnetometer for Research and Education in Undergraduate Institution

MRI：开发用于本科机构研究和教育的宽带时间分辨磁光和二次谐波发生磁力计

• 批准号: 0619919
• 负责人: Zbigniew Celinski
• 金额: --
• 依托单位: University of Colorado at Colorado Springs
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0619919&HistoricalAwards=false
• 关键词: MRI; Development; Broadband; Time; Resolved

Technical AbstractThe University of Colorado at Colorado Springs (UCCS) will develop a time-resolved magneto-optical and second harmonic generation (SHG) magnetometer using a 15-fs pulse laser system. The main advantages of the instrument are: availability to identify the excited spin waves due to the different surface sensitivity of both techniques (surface versus bulk spin waves); flexibility to access a wide frequency range using the same setup (from "quasistatic" to terahertz); time precision limited by the width of the femtosecond pulses; and ability to obtain vector resolved magnetization response. The system will be used to investigate spin dynamics with applications in nanotechnology, particularly spin wave propagation and damping. The specific research projects will be: spin waves focusing, propagation of thermally excited spin waves, influence of the local behavior on the overall magnetization damping, and SHG response from liquid crystals. Educational outreach will include the participation of undergraduate students in the development of the instrument, where they will receive training in experimental techniques with cutting edge technology (high-frequency applications, ultrafast laser techniques, etc.). The instrument will also be used as a part of the Optical and Solid State Labs. UCCS will offer a modified class using this instrument to science and engineering majors, providing them with the training necessary for their future careers in the local nanotechnology and biomedical industries. The instrument will also support interdisciplinary undergraduate research (physics, materials research, biology, and chemistry). Lay AbstractThe development of new and improved electronic devices for such applications as communication and computers requires an understanding of fundamental material processes that often occur in ultra-short (femtosecond) time frames (in order to visualize one femtosecond, light travels from the Earth to the Moon in about 1.3 seconds; in one femtosecond, light travels a distance less than the thickness of a human hair). The magnetic behavior of materials is especially important in all of these applications. The University of Colorado at Colorado Springs (UCCS) will develop an instrument to measure magnetic properties that will provide a unique set of techniques to greatly enhance our research in the field of ultrafast phenomena with applications in nanotechnology. This development project will also include educational outreach. Undergraduate students will participate in the development of the instrument and receive training in experimental techniques with cutting edge technology (high-frequency applications, ultrafast laser techniques, etc.). The instrument will be used as a part of the advanced laboratory classes offered to physics majors. UCCS will also offer a modified class using this instrument for science and engineering majors, providing them with the training necessary for their future careers in the local nanotechnology and biomedical industries. The research activities using this instrument will include programs leading to, for example: development of faster and smaller nano-electronic devices used in communications, development of better materials for computer memories, and investigation of liquid crystals for displays (LCD's).

技术摘要科罗拉多斯普林斯大学（UCCS）将使用15-FS脉冲激光器系统开发时间分辨的磁光和第二谐波生成（SHG）磁力计。该仪器的主要优点是：由于两种技术的表面敏感性不同（表面与散装旋转波），因此可以识别激发自旋波的可用性；使用相同的设置（从“ Quasistatic”到Terahertz）的灵活性访问频率范围；时间精度受到飞秒脉冲宽度的限制；并能够获得载体解析的磁化响应。该系统将用于研究纳米技术中应用的自旋动力学，尤其是自旋波传播和阻尼。特定的研究项目将是：聚焦自旋波，热激发自旋波的传播，局部行为对整体磁化阻尼的影响以及液晶的SHG响应。教育宣传将包括本科生参与该乐器的开发，在那里他们将接受具有尖端技术（高频应用，超快激光技术等）的实验技术培训。该仪器还将用作光学和固态实验室的一部分。 UCCS将使用该工具为科学和工程专业的专业提供改良课，为他们提供当地纳米技术和生物医学行业未来职业所必需的培训。该工具还将支持跨学科的本科研究（物理，材料研究，生物学和化学）。摘要在诸如沟通和计算机之类的应用中开发新的和改进的电子设备需要了解通常发生在超短暂的（飞秒）时间范围的基本材料过程（为了可视化一个飞秒，从地球到月球从地球到月球的距离，在1.3秒内从1.3秒中传播到月球；在一个远距离的距离中，距人的距离比人类较少。在所有这些应用中，材料的磁性行为尤为重要。科罗拉多斯普林斯大学（UCCS）将开发一种仪器来测量磁性特性，该工具将提供一套独特的技术，以极大地增强我们在超快现象领域的研究，并在纳米技术中应用。该开发项目还将包括教育外展。本科生将参与仪器的开发，并通过尖端技术（高频应用，超快激光技术等）接受实验技术的培训。该仪器将被用作提供给物理专业的高级实验室课程的一部分。 UCCS还将使用此工具为科学和工程专业的专业提供改进的课程，为他们提供当地纳米技术和生物医学行业未来职业所必需的培训。使用该工具的研究活动将包括导致的程序，例如：用于通信中的更快和较小的纳米电子设备的开发，开发更好的计算机记忆材料以及对显示器的液晶进行调查（LCD）。