MRI: Development of Ultra-Broadband High-Power Frequency Comb Light Source for Advanced Spectroscopy and Imaging

MRI：开发用于先进光谱和成像的超宽带高功率频率梳光源

• 批准号: 2216021
• 负责人: Thomas Allison
• 金额: $ 100万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2027-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2216021&HistoricalAwards=false
• 关键词: MRI; Development; Ultra; Broadband; Power

General Audience Abstract:With support from the Physics Division, three programs in the Chemistry Division (CRIF, CMI, CSDM-A), the Astronomy Division, the Division of Materials Research, and the Office of Integrative Activities, Professors Allison and Liu at Stony Brook University will develop a new laser-based light source spanning a wide swath of the electromagnetic spectrum. The research will advance the state of the art in frequency comb technology and enable a variety of experiments involving 10 principal investigators (PIs) at Stony Brook along with a regional network of PIs from other nearby institutions. A frequency comb is a synthesizer for light waves, with which the user can control the electric field of light waves with the same precision routinely accomplished for radio frequency and microwave fields using the electronic technology that is the backbone of modern life. This control over light waves can enable myriad applications, however many applications of frequency combs have been limited by the available power and spectral coverage from currently available light sources. The new light source to be developed at Stony Brook will address this challenge by using high-power fiber lasers and nonlinear optics to generate frequency combs with unprecedented brightness and spectral coverage. With frequency combs spanning from the far-infrared to the soft x-ray, it is planned to cover more than 17 octaves (or about 2 and a half pianos’ worth) of frequency space. After development, the light source will be applied to experiments in four targeted areas: 1) nanometer resolved characterization of quantum materials and devices, 2) time-resolved imaging of electron motion in molecules and quantum materials, 3) ultrasensitive gas-phase molecular spectroscopy for both fundamental studies and analytical chemistry, and 4) quantum information science using atomic, molecular, and optical physics (AMO) platforms. It is also expected that the research will have a much broader impact than these activities at Stony Brook via the dissemination of detailed construction plans for the light source to the broader community, the training of students and postdocs in advanced optical methods, the development of new pedagogical experiments for undergraduate education, and potential future integration of the developed frequency comb technology into the NSF NeXUS, NSF’s new flagship laser-based user facility for ultrafast science.Technical Audience Abstract:PIs Allison and Liu will develop a new frequency comb light source at Stony Brook University with output spanning a wide swath of the electromagnetic spectrum, from the THz region (E 0.001 eV) all the way to the soft x-ray (E 200 eV). Built with a robust and reliable fiber-laser backbone, this light source will provide phase-coherent femtosecond-duration light pulses at MHz repetition rates that will be used in a variety of experiments. The light source development work proposed here will quantitatively advance the state of the art in frequency combs, and ultrafast optics in general, in a number of important ways. For one example, the PIs will produce the brightest source of broadband coherent THz and far-infrared radiation, orders of magnitude brighter than dedicated infrared/THz beamlines at synchrotron light sources. Similar to previous advances in light source technology, these developments will have a large qualitative impact on a wide range of science, with many applications both foreseen and unforeseen. At Stony Brook, the light source will specifically impact four activities, undertaken by 13 additional major users in collaboration with the PIs: 1) scanning near-field optical microscopy (SNOM) of quantum materials, 2) time- and angle-resolved photoemission (tr-ARPES) of quantum materials and molecular systems, 3) high-resolution and ultrafast spectroscopy of gas-phase molecules, and 4) laser stabilization in atomic, molecular, and optical (AMO) physics labs. Technology transfer to the broader community will be accomplished via detailed “how-to” papers, with complete parts lists, that enable others to build their own combs, and also via collaboration with the NSF NeXUS facility, NSF’s new flagship user facility for ultrafast spectroscopy. At Stony Brook, the new frequency comb system will also enable new experiments in the Laser Teaching Center, a unique facility at Stony Brook with full-time staff dedicated to education, outreach, and training.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

普通观众摘要：在物理部门的支持下，化学部的三个计划（CRIF，CMI，CSDM-A），天文学部，材料研究部以及综合活动办公室，Stony Brook University教授Allison和Liu将开发一个新的基于激光的光源，该光源范围广泛。这项研究将推进频率梳理技术的最新技术，并使各种实验涉及Stony Brook的10名主要研究人员（PIS），以及来自其他近乎机构的区域PI网络。频率梳子是光波的合成器，用户可以使用与现代生活的骨干的电子技术相同的精确度来控制光波的电场。对光波的控制可以实现无数的应用，但是频率梳子的许多应用都受到当前可用光源的可用功率和光谱覆盖的限制。 Stony Brook要开发的新光源将通过使用高功率光纤激光器和非线性光学元件来解决这一挑战，从而生成具有前所未有的亮度和光谱覆盖的频率梳子。随着频率梳子从远红外到软X射线，它计划覆盖频率空间的17多个八度音（或大约2个半钢琴的价值）。开发后，光源将应用于四个目标区域的实验：1）纳米量子材料和设备的表征，2）分子和量子材料中电子运动的时间分辨成像，3）超敏感性的气相分子分子谱图在基础研究和分析化学中，以及使用量子量的分析，以及使用量子的分析，以及使用量子分析的分析，以及分析的分析，分子分子。 It is also expected that the research will have a much broader impact than these activities at Stony Brook via the dissemination of detailed construction plans for the light source to the broader community, the training of students and postdocs in advanced optical methods, the development of new pedagogical experiments for undergraduate education, and potential future integration of the developed frequency comb technology into the NSF NeXUS, NSF’s new flagship laser-based user facility for ultrafast Science.Technical受众摘要：PIS Allison和Liu将在Stony Brook University开发新的频率梳子光源，其产出跨越了从THZ地区（E 0.001 eV）到软X射线（E 200 EV）的广泛电子频谱。该光源以坚固且可靠的纤维激光主链构建，将以MHz的重复速率提供相相关的飞秒持续光脉冲，这些脉冲将用于各种实验。此处提出的光源开发工作将以频率梳子进行定量提高最新技术，并以多种重要方式进行超快光学元件。例如，PI将产生最亮的宽带相干THZ和远红外辐射，比同步子光源处的专用红外/THZ Beablines更明亮的数量级。与以前的光源技术进步相似，这些发展将对广泛的科学产生重大的定性影响，许多应用程序都可以预见和不可预见。 At Stony Brook, the light source will specifically impact four activities, undertaken by 13 additional major users in collaboration with the PIs: 1) scanning near-field optical microscopy (SNOM) of quantum materials, 2) time- and angle-resolved photoemission (tr-ARPES) of quantum materials and molecular systems, 3) high-resolution and ultrafast spectroscopy of gas-phase molecules, and 4) laser stabilization in原子，分子和光学（AMO）物理实验室。技术转移到更广泛的社区将通过详细的“操作方法”论文以及完整的零件列表来完成，这使其他人能够构建自己的梳子，并通过与NSF NEXUS设施的合作，NSF NSF NSF NEXUS设施，NSF的超快光谱型新型旗舰用户设施。在Stony Brook，新的频率梳状系统还将在激光教学中心进行新的实验，这是Stony Brook的独特设施，拥有专门从事教育，外展和培训的全职员工。该奖项反映了NSF的法定任务，并被认为是通过使用基金会的知识和更广泛影响的评估来审查Criteria的评估来通过评估来获得的支持。