Acquisition of an Ultrafast Laser Spectrometer/Metrology System

9871213 Nurmikko基于最先进技术的最新发展，将在这个由重大研究仪器计划资助的项目期间获得和实施一个特别通用的超快光学光谱激光/光电实验室仪器系统。该研究仪器采用紧凑型全固态钛激光新技术，集成到高性能桌面超快时域椭圆偏振/光度测量实验室工具中。该仪器将多通道光谱分析与强大的实时计算能力结合在一起，可高精度测量在广泛的光激发实验中诱导的时变光学常数，时间分辨率低于30飞秒。该仪器具有集成的数据处理能力，将能够快速实时分析瞬变椭偏测量/光度测量中的复杂数值问题，例如发生在非均匀光学介质中的问题。该光学系统还集成了近场光学显微镜，该显微镜将结合超快时间分辨率和亚微米空间分辨率，用于对小材料结构的飞秒显微镜。该项目的两名主要研究人员将与布朗大学的其他六名教师合作研究人员和几个行业合作伙伴/合作者一起进行密切合作的研究。%新仪器将从国家科学基金会的主要研究仪器计划的资金中获得，将为研究生和博士后提供最先进的现代光学仪器和激光光谱学方面的培训机会。除了拟议项目领域内的基本科学内容外，本培训还涉及应用技术领域，这些领域由拟议研究中的要素连接起来，以期在先进计量学和光谱学的光电仪器开发开发中寻找积极的机会。

9871213NurmikkoAn exceptionally versatile Ultrafast Optical Spectroscopic Laser/Optoelectronic laboratory instrumentation system, based on new developments in the state of the art technology, will be acquired and implemented during this project that is funded by the Major Research Instrumentation program. The research instrumentation utilizes compact all-solid state new laser technology based on titanium, which are integrated into a high performance tabletop ultrafast time-domain ellipsometric/photometric laboratory tool. Incorporating multichannel spectral analysis with significant real-time computational power, the instrumentation is configured for high precision measurements of time varying optical constants that are induced within a broad spectrum of photoexcitation experiments, with time resolution below 30 femtoseconds. The instrumentation features an integrated data processing capability, which will enable a rapid real-time analysis of the complex numerical problems in transient ellipsometry/photometry, such as occurring in heterogeneous optical media. The optical system also integrates a near-field optical microscope that will combine the ultrafast time resolution with submicron spatial resolution for femtosecond microscopy on small material structures. The two principal investigators on this project will be joined in close collaborative research by six other faculty co-investigators at Brown and by several industrial partners/collaborators.%%%The new instrumentation, which will be acquired from funding from the National Science Foundation's Major Research Instrumentation program, will provide an opportunity for postgraduate and postdoctoral training in state-of-the-art modern optical instrumentation and laser spectroscopy. In addition to the basic scientific content within the proposed project areas, this training reaches into areas of applied technology that are bridged by elements within the proposed research that look for active opportunities in the development of optoelectronic instrumentation development for advanced metrology and spectroscopy.***