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Design for a Fully Multiplexed Imaging Fourier Transform Spectrometer 全多路成像傅立叶变换光谱仪的设计
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fmc.1
D. Davis
{"title":"Design for a Fully Multiplexed Imaging Fourier Transform Spectrometer","authors":"D. Davis","doi":"10.1364/fts.1997.fmc.1","DOIUrl":"https://doi.org/10.1364/fts.1997.fmc.1","url":null,"abstract":"As described in recent publications1,2, the development of a new approach to multiplexed imaging is underway at the Naval Postgraduate School. The technique is expected to find a niche in sensitive astronomical and remote-sensing applications at long wavelengths (far infrared to submillimeter), particularly from high altitude aircraft and space-based platforms. At such wavelengths, various physical and technological constraints limit the development of focal plane array detectors, but single element, discrete detectors are available. The new multiplexed imaging method is called Kronecker product imaging (KPI), and it shares several attributes that are closely allied to the techniques of Fourier transform spectroscopy (FTS). Furthermore, it has been intended from the outset that KPI and FTS instrumentation can be easily combined into a hybrid, completely multiplexed imaging spectrometer, capable of both high spectral resolving power and fine spatial image resolution simultaneously.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121275183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurements of the Schumann-Runge Bands of O2 with VUV-FT Spectrometer and Synchrotron Radiation Source VUV-FT光谱仪和同步辐射源测量O2的舒曼-朗格谱带
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.ftua.3
K. Yoshino, Esmond, W. Parkinson, A. Thorne, L. E. Murray, G. Cox, R. Learner, K. Ito, T. Imajo, T. Mastsui, A. Cheung, K. Leung
{"title":"Measurements of the Schumann-Runge Bands of O2 with VUV-FT Spectrometer and Synchrotron Radiation Source","authors":"K. Yoshino, Esmond, W. Parkinson, A. Thorne, L. E. Murray, G. Cox, R. Learner, K. Ito, T. Imajo, T. Mastsui, A. Cheung, K. Leung","doi":"10.1364/fts.1997.ftua.3","DOIUrl":"https://doi.org/10.1364/fts.1997.ftua.3","url":null,"abstract":"Current research on the Earth’s upper atmosphere requires molecular parameters of unprecedented detail and accuracy. State-of-the-art models of the vacuum-ultraviolet (VUV) absorbing properties of the atmosphere call for absorption cross sections with details on the scale of the Doppler linewidths (i.e., 0.1 to 0.15 cm−1 at 295 K). As a consequence, spectroscopic data at resolving powers of the order of 106 are needed. Current particular needs are for ultrahigh resolution absorption cross section data for some bands of NO and O2 in the UV to VUV region. To meet some of these requirements, we have used a UV Fourier transform (FT) spectrometer at Imperial College (IC) to measure the Herzberg I bands of O2 [1,2] and the δ (0,0) band of NO [3]","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117094376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress in FTIR Applications for Gas Analysis FTIR在气体分析中的应用进展
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fmc.2
Timo Stuffier, H. Bittner, T. Eisenmann, H. Mosebach
{"title":"Progress in FTIR Applications for Gas Analysis","authors":"Timo Stuffier, H. Bittner, T. Eisenmann, H. Mosebach","doi":"10.1364/fts.1997.fmc.2","DOIUrl":"https://doi.org/10.1364/fts.1997.fmc.2","url":null,"abstract":"New applications for remote sensing and laboratory measurements for gas analysis using FTIR systems from Kayser-Threde and another manufacturer are presented in this paper. It represents a summary of the latest progress in FTIR technology induced as feedback from different customer applications, currently running research projects, and hardware optimizations.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129721894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precision Wavelength Calibration for UV-visible FTS 紫外可见FTS的精密波长校准
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.ftua.2
M. Salit, C. Sansonetti, J. Travis, D. Veẑa
{"title":"Precision Wavelength Calibration for UV-visible FTS","authors":"M. Salit, C. Sansonetti, J. Travis, D. Veẑa","doi":"10.1364/fts.1997.ftua.2","DOIUrl":"https://doi.org/10.1364/fts.1997.ftua.2","url":null,"abstract":"At the 1995 FTS topical meeting, our group presented a description of issues surrounding calibration of the wavenumber scale of our Chelsea Instruments UV/visible FTS.1 Inconsistencies observed when using wavelength standards from Ar II2 and 198Hg3 formed a large part of that discussion. We have continued to work on this problem, with the intent of resolving these discrepancies and probing the limits of precision of the wavenumber scale in FTS.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123720083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multipassing a Cryogenic Sample: Use of a White-Type Cell with 8 Passes for Studying Solid Hydrogen 多次传代低温样品:使用白色型细胞8次传代研究固体氢
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fwa.3
M. Mengel, B. Winnewisser, M. Winnewisser
{"title":"Multipassing a Cryogenic Sample: Use of a White-Type Cell with 8 Passes for Studying Solid Hydrogen","authors":"M. Mengel, B. Winnewisser, M. Winnewisser","doi":"10.1364/fts.1997.fwa.3","DOIUrl":"https://doi.org/10.1364/fts.1997.fwa.3","url":null,"abstract":"The use of a White-type multipass arrangement external to the optical head of a cryostat for Fourier transform spectroscopy of solid H2 was explored in previous work from our laboratory [1, 2]. The present measurements were made by extending from 4 to 8 passes through the cell within the liquid-He vaporization cryostat (Janis Research Inc., Model 10 DT) [3]. This multireflection system was mounted inside the sample chamber of the Bruker IFS 120 HR interferometer as shown in Fig. 1. Water absorptions were minimized by evacuating the whole spectrometer. All six windows of the cryostat and of the sample cell were equipped with an antireflection coating which was optimized for the spectral range 7500 - 9000 cm-1.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127977773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiometry by FTS in the visible and UV regions 可见光和紫外区的辐射测量
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fmb.2
A. Thorne
{"title":"Radiometry by FTS in the visible and UV regions","authors":"A. Thorne","doi":"10.1364/fts.1997.fmb.2","DOIUrl":"https://doi.org/10.1364/fts.1997.fmb.2","url":null,"abstract":"Much effort over many years has gone into evaluating and improving the wavenumber accuracy of FTS - the x-axis - but relatively little attention has been paid to the accuracy of the intensity measurements - the y-axis. This is particularly true of the UV region, where almost all spectrophotometry is done with grating instruments. We have used our high resolution UV FT spectrometer for making three different types of intensity measurements: branching ratios in emission, absorption cross-sections, and (at low resolution) lamp calibration. In the course of these measurements we have identified a number of sources of potential error, some known in advance and some discovered the hard way, some common to grating and FT spectrometers and some peculiar to FTS, and some that particularly affect the short wavelength region. This paper discusses the principal problems and the lessons we have learned. It also indicates some of the advantages (and the occasional disadvantage) that FTS has over grating spectrometry for radiometry in the UV.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131397500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared Chemical Imaging 红外化学成像
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fwa.1
E. Lewis, L. Kidder, I. W. Levin, V. Kalasinsky, D. Lester
{"title":"Infrared Chemical Imaging","authors":"E. Lewis, L. Kidder, I. W. Levin, V. Kalasinsky, D. Lester","doi":"10.1364/fts.1997.fwa.1","DOIUrl":"https://doi.org/10.1364/fts.1997.fwa.1","url":null,"abstract":"We have developed a new Fourier transform infrared chemical imaging technique1 which, when coupled with powerful multivariate data processing methods, allows the visualization of intrinsic chemical distributions in biological samples and other composite materials. Integrating spectroscopy with sample visualization and digital image processing is a potent combination of what have traditionally been two distinct methods for studying the chemistry and morphology of a sample. This synergy has been referred to as chemical imaging or hyperspectral imaging and has wide ranging implications for material characterization. In the infrared spectral region the technique relies on the use of infrared focal-plane array detectors composed of either indium antimonide (InSB), mercury cadmium telluride (MCT) or arsenic doped silicon (Si:As). These arrays, which were originally developed for defense related applications, constitute an emerging commercial technology. The arrays can be used in conjunction with standard Cassegrainian infrared optics and step-scan Michelson infrared interferometers to construct imaging systems capable of collecting tens of thousands of spatially resolved infrared spectra and images with less than 1 minute of data acquisition time.2 The data sets contain both spatial and spectral information and typically consist of hundreds of images resolved in frequency space (wavenumbers, cm-1), with each image containing many tens of thousands of pixels. Using a microscope, each pixel can sample a region as small as 2 μms2 of a sample surface.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133392385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3% Solutions (To Formerly Intractable Problems) 3%的解决方案(以前棘手的问题)
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.fma.1
L. Brown
{"title":"3% Solutions (To Formerly Intractable Problems)","authors":"L. Brown","doi":"10.1364/fts.1997.fma.1","DOIUrl":"https://doi.org/10.1364/fts.1997.fma.1","url":null,"abstract":"Positions, intensities and widths measured through Fourier transform spectroscopy have often revealed inadequacies in our quantum mechanical models. Analyses of infrared water, hydrogen sulfide, ammonia and methane spectra that have reproduced intensities and widths to within an experimental precision of 3% or better are discussed along with recommendations for future measurements and analyses needed to advance our theoretical understanding of ro-vibrational spectra in the infrared.","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133954323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sounding Retrieval from Upwelling and Downwelling Infrared Interferometer Radiance Measurements 上升流和下升流红外干涉仪辐射测量的测深反演
Fourier Transform Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/fts.1997.ftuc.2
S. Ho, W. Smith, H. Huang
{"title":"Sounding Retrieval from Upwelling and Downwelling Infrared Interferometer Radiance Measurements","authors":"S. Ho, W. Smith, H. Huang","doi":"10.1364/fts.1997.ftuc.2","DOIUrl":"https://doi.org/10.1364/fts.1997.ftuc.2","url":null,"abstract":"During the past thirty years considerable progress has been made in passive infrared remote sensing of vertical temperature and moisture profiles. Unfortunately, passive soundings have not processed the accuracy required for forecast models (Bengtsson, 1979).","PeriodicalId":221045,"journal":{"name":"Fourier Transform Spectroscopy","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128024888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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