SBIR Phase I: Development of New Time and Spatially-Resolved, Near-Infrared Photoluminescence Techniques Detecting Trapped Charge in Inorganic Sediments for Geochronology Dating

SBIR 第一阶段：开发新的时间和空间分辨近红外光致发光技术，检测无机沉积物中的俘获电荷以进行地质年代测定

• 批准号: 2126530
• 负责人: Amy Scott
• 金额: $ 25.6万
• 依托单位: BETA ANALYTIC, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2126530&HistoricalAwards=false
• 关键词: SBIR; Phase; Development; New; Time

This Small Business Innovation Research Phase I project will develop a rapid, Pulsed Near-Infrared Photoluminescence (P-NIR-PL) and Stimulated Luminescence (SL) technique with micron spatial resolution, as a state-of-the art photoluminescence dating method for inorganic sediments, with substantially improved precision, accuracy, and turn-around time for sample processing. Picosecond-NIR-PL is a next-generation analytical platform for inorganic sediments. The team seeks to capture geochronological data from ~1 to 200,000 years prior. The approach addresses challenges with sample processing through the rapid detection of overlapping PL signals that will be deconvoluted and correlated to age. If successful, this project will provide new capabilities to geologists and archaeologists working on new geochronological methods for dating volcanic soils, charred materials, and sand/rock materials from future extraterrestrial sites. A sizable niche market and strong commercialization opportunity exists if optical dating measurements can be performed rapidly and non-destructively, repeatedly with differentiation on the sub single-grain level, and reliably with minimal sample pre-treatment. The intellectual merit of this project focuses on instrument development to address the immediate demand for an accurate tool for differentiation of quartz and feldspar detection in sediments using an advanced spatial and time-resolved microscopy method with an attached dosing/dating capability for geochronological dating. Separation of PL and SL decays that are previously unexplained will establish a novel geochronological method achieved by expanding the detection into the near-infrared. A picosecond pulsed laser source with picosecond-to-second resolution in kinetic decay will be combined with high spatial resolution to cover a wide range of excitation/emission profiles that uniquely shorten the time required for a single measurement, from 13 hours to 20 minutes. Specifically, the combined time-resolved and spatially-resolved components create a powerful technique to distinguish molecular and crystalline environments as well as to distinguishing emissions from similar spectra and unique elemental microstructures. The proposed activities may advance engineering and science innovation in pulsed optical/NIR dating methods with a focus on high performance, commercial instrument development for rapid sample screening. Establishment of both the state-of-the-art instrumentation and analytical testing service for optical dating will be performed by a new diversified customer segment with implementation of an online geochronological library.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.

这个小型企业创新研究阶段I项目将开发出一种快速，脉动的近红外光致发光（P-NIR-PL）和刺激的发光（SL）技术，并具有微小空间分辨率，作为一种无机沉积物的最先进的光发光测定方法，具有实质上改进的精确性，准确性，准确，准确，准确性，适用于样品处理。 Picsecond-Nir-PL是无机沉积物的下一代分析平台。 该团队试图在〜1到200，000年前捕获地质学数据。 该方法通过快速检测重叠的PL信号来解决样本处理，这些挑战将被解卷积并与年龄相关。如果成功的话，该项目将为地质学家和考古学家提供新的能力，从事新的土壤学方法，以与未来外星地点的火山土壤，烧焦材料以及沙/岩石材料约会。 如果可以迅速和无损地进行光学约会测量，则存在相当大的利基市场和强大的商业化机会，并且在亚单一颗粒水平上反复进行差异，并且可靠地进行了差异，并且样本预处理最少。该项目的智力优点侧重于仪器开发，以解决对使用高级空间和时间分辨的显微镜方法在沉积物中分化石英和长石的准确工具的直接需求。以前无法解释的PL和SL衰变的分离将通过将检测扩展到近红外来建立一种新的地质学方法。 动力学衰变中具有皮秒到第二个分辨率的皮秒脉冲激光源将与高空间分辨率结合使用，以覆盖各种激发/发射轮廓，这些激发/发射轮廓从13小时到20分钟唯一缩短单个测量所需的时间。 具体而言，组合的时间分辨和空间分辨的组件创造了一种强大的技术，可以区分分子和结晶环境，并区分排放与相似的光谱和独特的元素微观结构。 提出的活动可能会推进脉冲光学/NIR约会方法的工程和科学创新，重点是高性能，商业仪器开发以快速样品筛选。建立最先进的仪器和光学约会的分析测试服务将由一个新的多元化客户领域实施，并实施在线地质学库。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响审查标准来通过评估来通过评估来支持的。