EA: Upgrade of the Laser Heating System in the High-Pressure Diamond-Anvil Cell Laboratory at Arizona State University

这个仪器和设施奖由亚利桑那州立大学(ASU)的PiShim领导，将升级用于钻石砧座电池实验的激光加热系统。这些类型的实验对于了解地球内部深处是至关重要的。拟议的增强包括将地球材料加热到非常高的温度、提高高精度样品定位和高分辨率成像的能力。这些升级解决了目前的限制，从而使更先进的研究能够理解极端条件，如在地球深处发现的极端条件。这次升级意义重大，因为它将使研究人员能够探索早期地球的过程和化学演化，有助于我们更广泛地了解行星的形成和演化。多年来，Shim的实验室已经成为培养有抱负的早期职业科学家的场所，特别是那些来自历史上被STEM排除在外的群体的科学家，许多学生进入了学术机构、国家实验室和工业，从而为地球科学和材料工程等领域做出了重大贡献。此次升级将进一步扩大这些教育机会，通过增进对科学的理解并继续为未来的科学家创造一个包容的环境，强化亚利桑那州立大学在科学研究和教育方面对多样性和卓越的承诺。该奖项将升级亚利桑那州立大学的Shim实验室的激光加热系统，以提高钻石顶锤实验的加热质量，实现更高的温度加热，独立控制样品两侧的激光功率，用于氢介质实验的脉冲光束，精确的样品定位和高分辨率成像。这一升级至关重要，因为目前的系统依赖单一的100 W光纤激光器进行双面加热，将加热能力限制在3000 K以上，并且缺乏脉冲加热组件，而脉冲加热对于研究地球深处的氢至关重要。实施这些改进将使学生和博士后研究人员能够进行重要的实验，扩大对早期地球过程和化学演化的理解。此外，对该系统的改进与对包容性研究的承诺相一致，这一承诺通过涉及本科生，特别是来自代表性不足的背景的本科生的指导和出版物来体现。此次升级将扩大亚利桑那州立大学的本科生研究机会，进一步促进STEM的多样性，特别是有利于其作为标题III和标题V项目下的西班牙裔服务机构的地位。Shim实验室的校友在STEM领域攻读了更高的学位并担任了重要职位。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This Instrumentation and Facilities award, led by PI Shim at Arizona State University(ASU), will upgrade the laser-heating system used in diamond-anvil cell experiments. These types of experiments are crucial for understanding the Earth's deep interior. The proposed enhancements include the abilities to heat Earth materials to very high temperatures, and increase high-precision sample positioning, and high-resolution imaging. These upgrades address current limitations, thereby enabling more advanced research into understanding extreme conditions, like those found in the Earth's deep interior. This upgrade is significant as it will enable researchers to explore the processes and chemical evolution of early Earth, contributing to our broader understanding of planetary formation and evolution. Over the years, Shim's lab has become a nurturing ground for aspiring early career scientists, particularly those from groups historically excluded from STEM, with numerous students advancing to academic institutions, national laboratories, and industry, thereby contributing significantly to fields encompassing not only Earth science but also materials engineering. The upgrade will further expand these educational opportunities, reinforcing ASU's commitment to diversity and excellence in scientific research and education by both advancing scientific understanding and continuing to foster an inclusive environment for future scientists.This award will upgrade the Shim lab's laser-heating system at ASU to enhance heating quality in diamond-anvil cell experiments, enabling higher temperature heating, independent control of laser power on both sides of the sample, pulsed beams for hydrogen-media experiments, precise sample positioning, and high-resolution imaging. This upgrade is crucial as the current system, relying on a single 100 W fiber optic laser for double-sided heating, limits heating capabilities beyond 3000 K and lacks components for pulsed heating, which is pivotal in studying hydrogen in Earth's deep interior. Implementing these improvement will allow students and postdoctoral researchers to conduct important experiments, to expand understanding of early Earth processes and chemical evolution.Furthermore, the enhancement to the system aligns with the commitment to inclusive research, demonstrated through mentoring and publications involving undergraduate students, particularly those from underrepresented backgrounds. The upgrade will expand undergraduate research opportunities at ASU, furthering diversity in STEM, and particularly benefiting its status as a Hispanic Serving Institution under Title III and Title V programs. Alumni of Shim's lab have pursued advanced degrees and hold notable positions in STEM fields.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.