激光烧蚀材料的远程分子组成分析

IF 5.4 2区 化学 Q1 INSTRUMENTS & INSTRUMENTATION
P. Lubin, M. Pelizzo, Jacob Erlikhman, A. Cohen, J. Madajian, P. Meinhold, G. Hughes, Nic Rupert, P. Srinivasan
{"title":"激光烧蚀材料的远程分子组成分析","authors":"P. Lubin, M. Pelizzo, Jacob Erlikhman, A. Cohen, J. Madajian, P. Meinhold, G. Hughes, Nic Rupert, P. Srinivasan","doi":"10.1080/05704928.2021.1966634","DOIUrl":null,"url":null,"abstract":"Abstract A novel method is described for remotely interrogating bulk molecular composition of rocky materials. Laser energy heats a local area on the substrate; flux is optimized to melt and evaporate target constituents with low rates of molecular dissociation. Substrate temperature rises until an equilibrium is established between incident flux and latent phase-change energies, reaching ˜2500 K in vacuum. A blackbody signal is emitted by the heated spot, traveling outward through the evaporated material; reflective optics direct the signal into a spectrometer. Ro-vibrational absorption in the plume provides a diagnostic for identifying bulk molecular composition of the substrate. Absorption spectra are modeled for compounds with available a priori molecular cross-sections, based on laser and receiver characteristics, and target material properties. Mass ejection flux drives the plume density profile. Qualitative, species-specific spectral profiles are derived by integrating molecular cross section along a path through the plume. Simulations indicate robust absorption profiles.","PeriodicalId":8100,"journal":{"name":"Applied Spectroscopy Reviews","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Remote molecular composition analysis of laser-ablated material\",\"authors\":\"P. Lubin, M. Pelizzo, Jacob Erlikhman, A. Cohen, J. Madajian, P. Meinhold, G. Hughes, Nic Rupert, P. Srinivasan\",\"doi\":\"10.1080/05704928.2021.1966634\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract A novel method is described for remotely interrogating bulk molecular composition of rocky materials. Laser energy heats a local area on the substrate; flux is optimized to melt and evaporate target constituents with low rates of molecular dissociation. Substrate temperature rises until an equilibrium is established between incident flux and latent phase-change energies, reaching ˜2500 K in vacuum. A blackbody signal is emitted by the heated spot, traveling outward through the evaporated material; reflective optics direct the signal into a spectrometer. Ro-vibrational absorption in the plume provides a diagnostic for identifying bulk molecular composition of the substrate. Absorption spectra are modeled for compounds with available a priori molecular cross-sections, based on laser and receiver characteristics, and target material properties. Mass ejection flux drives the plume density profile. Qualitative, species-specific spectral profiles are derived by integrating molecular cross section along a path through the plume. Simulations indicate robust absorption profiles.\",\"PeriodicalId\":8100,\"journal\":{\"name\":\"Applied Spectroscopy Reviews\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2021-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Spectroscopy Reviews\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1080/05704928.2021.1966634\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Spectroscopy Reviews","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1080/05704928.2021.1966634","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0

摘要

摘要:提出了一种远程检测岩石材料体分子组成的新方法。激光能量加热衬底上的局部区域;优化了熔剂以低分子解离率熔化和蒸发目标成分。衬底温度上升,直到在入射通量和潜在相变能之间建立平衡,在真空中达到~ 2500 K。黑体信号由受热点发出,通过蒸发的物质向外传播;反射光学元件将信号送入分光仪。羽流中的反振动吸收为鉴定底物的大块分子组成提供了诊断方法。基于激光和接收器特性以及靶材料特性,对具有可用先验分子截面的化合物进行吸收光谱建模。物质抛射通量驱动羽流密度剖面。定性的、物种特异性的光谱剖面是通过沿羽流路径积分分子截面得到的。模拟结果表明,吸收曲线很稳定。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Remote molecular composition analysis of laser-ablated material
Abstract A novel method is described for remotely interrogating bulk molecular composition of rocky materials. Laser energy heats a local area on the substrate; flux is optimized to melt and evaporate target constituents with low rates of molecular dissociation. Substrate temperature rises until an equilibrium is established between incident flux and latent phase-change energies, reaching ˜2500 K in vacuum. A blackbody signal is emitted by the heated spot, traveling outward through the evaporated material; reflective optics direct the signal into a spectrometer. Ro-vibrational absorption in the plume provides a diagnostic for identifying bulk molecular composition of the substrate. Absorption spectra are modeled for compounds with available a priori molecular cross-sections, based on laser and receiver characteristics, and target material properties. Mass ejection flux drives the plume density profile. Qualitative, species-specific spectral profiles are derived by integrating molecular cross section along a path through the plume. Simulations indicate robust absorption profiles.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Applied Spectroscopy Reviews
Applied Spectroscopy Reviews 工程技术-光谱学
CiteScore
13.80
自引率
1.60%
发文量
23
审稿时长
1 months
期刊介绍: Applied Spectroscopy Reviews provides the latest information on the principles, methods, and applications of all the diverse branches of spectroscopy, from X-ray, infrared, Raman, atomic absorption, and ESR to microwave, mass, NQR, NMR, and ICP. This international, single-source journal presents discussions that relate physical concepts to chemical applications for chemists, physicists, and other scientists using spectroscopic techniques.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信