Compact Isotopic Raman Multigas Trace Detection System
紧凑型同位素拉曼多气体痕量检测系统
基本信息
- 批准号:2116275
- 负责人:
- 金额:$ 29.08万
- 依托单位:
- 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:2021-09-15 至 2024-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Spontaneous Raman scattering is a simple and well-studied process that is ideally suited for chemical analysis. However, while routinely implemented in commercial systems to identify molecular species in solids and liquids, few solutions exist for the measurement of gases, due in part to the need for a powerful and spectrally pure laser source. Yet, a compact and inexpensive portable chemical gas analyzer would find a plethora of applications in industrial process control, medical diagnostics and hazards detection. The present project is exploring solutions to bring gaseous spontaneous Raman scattering to a level of maturity that could allow it to be used in consumer-level devices. Implemented with an ordinary laser diode in conjunction with an engineered multi-pass beam geometry that simultaneously defines the laser’s spectral purity via feedback, the technique investigated can detect trace chemicals including isotopologues, i.e., molecules that differ only by their isotopic composition. These efforts are focusing on practically relevant measurements such as atmospheric and breath detection that could pave the way for the realization of versatile and widely deployable “artificial noses”. The project entails training graduate and undergraduate students in an interdisciplinary environment of photonics and quantum physics research. Due to its inherent simplicity and versatility, spontaneous Raman scattering is ideally suited for chemical gas analysis. However, with a small scattering cross-section, the process typically requires an enhancement method, of which the most famous example is probably surface enhanced Raman scattering. Recent years have seen a resurgence of approaches such as cavity, capillary, hollow core fiber, and Purcell-enhanced Raman scattering, some of which have demonstrated gas sensing capabilities in the parts-per-million concentration range. The primary goal of the proposed work is to develop a novel method expected to offer dramatic improvements, in particular, detection limits in the parts-per-billion range, while employing a low-cost compact design with all components operating at room temperature. The novel approach is based on a multi-pass cavity integrated as part of an external cavity diode laser that is multimode and efficient. The project explores methods of producing an engineered electromagnetic environment that optimizes the degree to which Raman scattered photons are collected. It aims at understanding how an optical cavity can be utilized most effectively to enhance the rate of spontaneous Raman scattering for the benefit of trace detection. The project has implications for cavity quantum electrodynamics research and general metrology science as well as a diverse range of applications in isotopologue trace gas sensing.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.
自发拉曼散射是一种简单且经过充分研究的过程,非常适合化学分析。然而,虽然在商业系统中常规实施以识别固体和液体中的分子种类,但用于测量气体的解决方案很少,部分原因是需要强大的光谱纯激光源。然而,紧凑且廉价的便携式化学气体分析仪将在工业过程控制、医疗诊断和危险检测中得到广泛应用。目前的项目正在探索解决方案,使气态自发拉曼散射达到成熟水平,使其可用于消费级设备。该技术采用普通激光二极管与工程多通光束几何结构结合实施,通过反馈同时定义激光的光谱纯度,所研究的技术可以检测痕量化学物质,包括同位素体,即仅同位素成分不同的分子。这些努力的重点是实际相关的测量,例如大气和呼吸检测,这可以为实现多功能且可广泛部署的“人造鼻子”铺平道路。该项目需要在光子学和量子物理研究的跨学科环境中培训研究生和本科生。由于其固有的简单性和多功能性,自发拉曼散射非常适合化学气体分析。然而,由于散射截面较小,该过程通常需要增强方法,其中最著名的例子可能是表面增强拉曼散射。近年来,空腔、毛细管、空心光纤和珀塞尔增强拉曼散射等方法重新兴起,其中一些方法已证明具有百万分之一浓度范围的气体传感能力。拟议工作的主要目标是开发一种新颖的方法,有望提供显着的改进,特别是十亿分之一范围内的检测限制,同时采用所有组件在室温下运行的低成本紧凑设计。这种新颖的方法基于多通道腔,该多通道腔集成为多模且高效的外腔二极管激光器的一部分。该项目探索了产生工程电磁环境的方法,以优化拉曼散射光子的收集程度。它旨在了解如何最有效地利用光学腔来提高自发拉曼散射的速率,从而有利于痕量检测。该项目对腔量子电动力学研究和一般计量科学以及同位素痕量气体传感的多种应用具有影响。该奖项反映了 NSF 的法定使命,并通过使用基金会的智力价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Isotopologue trace gas detection using multipass cavity Raman scattering
使用多通道腔拉曼散射进行同位素痕量气体检测
- DOI:10.1364/cleo_at.2022.am2m.3
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:Singh, Jaspreet;Muller, Andreas
- 通讯作者:Muller, Andreas
Narrow-Linewidth Pr:YLF Laser for High-Resolution Raman Trace Gas Spectroscopy
- DOI:10.3390/spectroscj1020008
- 发表时间:2023-08
- 期刊:
- 影响因子:0
- 作者:Charuka Muktha Arachchige;A. Muller
- 通讯作者:Charuka Muktha Arachchige;A. Muller
Precision hydrogen trace gas detection by ultralow-loss multipass cavity Raman scattering
通过超低损耗多通腔拉曼散射进行精密氢气痕量气体检测
- DOI:10.1364/cleo_at.2023.ath3k.4
- 发表时间:2023
- 期刊:
- 影响因子:0
- 作者:Singh, Jaspreet;Muller, Andreas
- 通讯作者:Muller, Andreas
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Andreas Muller其他文献
Raman scattering applied to human breath analysis
拉曼散射在人体呼气分析中的应用
- DOI:
10.1016/j.trac.2024.117791 - 发表时间:
2024-08-01 - 期刊:
- 影响因子:12.000
- 作者:
Charuka Muktha Arachchige;Andreas Muller - 通讯作者:
Andreas Muller
Atrial Fibrillation Ablation: A Single Center Comparison Between Remote Magnetic Navigation, Cryoballoon and Conventional Manual Pulmonary Vein Isolation
心房颤动消融:远程磁导航、冷冻球囊和传统手动肺静脉隔离之间的单中心比较
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
A. Sorgente;G. Chierchia;L. Capulzini;Y. Yazaki;Andreas Muller;F. Bayrak;A. Sarkozy;C. de Asmundis;G. Paparella;Brugada Brugada - 通讯作者:
Brugada Brugada
On the Gaussian Approximation to Bayesian Posterior Distributions
关于贝叶斯后验分布的高斯逼近
- DOI:
10.13189/ms.2021.090413 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Christopher J. Fuhrmann;H. Harney;Klaus Harney;Andreas Muller - 通讯作者:
Andreas Muller
Capital Embodied Structural Change ∗
资本体现的结构变化*
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
†. JulietaCaunedo;Elisa Keller;Margarida Duarte;Berthold Herrendorf;Manuel Garćıa;M. Mestieri;Andreas Muller;Diego Restuccia;Fabrizio Zilibotti - 通讯作者:
Fabrizio Zilibotti
Andreas Muller的其他文献
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{{ truncateString('Andreas Muller', 18)}}的其他基金
CAREER: Interfacing Remote Quantum Dot Nanostructures by Resonant Light Scattering
职业:通过共振光散射连接远程量子点纳米结构
- 批准号:
1254324 - 财政年份:2013
- 资助金额:
$ 29.08万 - 项目类别:
Continuing Grant
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