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The First Rotational Analysis of the Infrared Spectrum of Dimethylacetylene 二甲基乙炔红外光谱的首次旋转分析
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.tua6
P. Bunker, C. Lauro, J. Johns, A. Mckellar
{"title":"The First Rotational Analysis of the Infrared Spectrum of Dimethylacetylene","authors":"P. Bunker, C. Lauro, J. Johns, A. Mckellar","doi":"10.1364/hrs.1993.tua6","DOIUrl":"https://doi.org/10.1364/hrs.1993.tua6","url":null,"abstract":"The perpendicular fundamental bands of dimethylacetylene have long been of interest to spectroscopists. This is because it is in these bands that two interesting effects manifest themselves. The first of these effects is the splitting of certain rotational lines caused by the small barrier to internal rotation. And the second effect is the shift of intensity within the band due to the coupling (through the acetylene bond) of the perpendicular methyl vibrations from one end of the molecule to the other.","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"178 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":"116541088","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
Spectroscopic Studies of Weakly Bound Molecular Complexes 弱结合分子复合物的光谱研究
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.tua1
W. Klemperer
{"title":"Spectroscopic Studies of Weakly Bound Molecular Complexes","authors":"W. Klemperer","doi":"10.1364/hrs.1993.tua1","DOIUrl":"https://doi.org/10.1364/hrs.1993.tua1","url":null,"abstract":"We present recent results of the studies on the following systems. Arl2 (With M.L. Burke), ArHCN(with S. Drucker and A.L. Cooksy) and ArHF and (HF)2 (with H. Chang).","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"36 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":"127090444","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
Applications of High Resolution Coherent Raman Spectroscopy 高分辨率相干拉曼光谱的应用
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.wa2
J. Nibler
{"title":"Applications of High Resolution Coherent Raman Spectroscopy","authors":"J. Nibler","doi":"10.1364/hrs.1993.wa2","DOIUrl":"https://doi.org/10.1364/hrs.1993.wa2","url":null,"abstract":"In recent years, the development of improved laser sources of high power and narrow linewidth has led to significant advances in high resolution Coherent Raman spectroscopies such as CARS (Coherent Anti-Stokes Raman Spectroscopy) and SRS (Stimulated Raman Gain/Loss Spectroscopy). The apparatus at Oregon State University is representative of current capabilities and consists of a cw ring dye laser whose output is increased in a three-stage dye amplifier pumped by the 532 nm output of a seeded, single frequency Nd:YAG pulsed laser. The resolution is thus limited by the Fourier transform of the amplifying pulse which is 5-10 ns for most commercial Nd:YAG lasers. Very recently, we have extended this using a custom long-pulse Nd:YAG laser of 30-50 ns 532 nm pulse duration.1","PeriodicalId":109383,"journal":{"name":"High Resolution 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":"128820784","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
Time-resolved optical double resonance spectroscopy in acetylene : exploring rovibrational energy transfer at various levels of excitation 乙炔的时间分辨光学双共振光谱:探索不同激发水平下的旋转振动能量传递
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.ma5
A. P. Milce, H. Barth, B. Chadwick, B. Orr
{"title":"Time-resolved optical double resonance spectroscopy in acetylene : exploring rovibrational energy transfer at various levels of excitation","authors":"A. P. Milce, H. Barth, B. Chadwick, B. Orr","doi":"10.1364/hrs.1993.ma5","DOIUrl":"https://doi.org/10.1364/hrs.1993.ma5","url":null,"abstract":"Time-resolved optical double resonance (DR) techniques are useful not only for high-resolution spectroscopy, but also for studies of the mechanisms by which molecules transfer energy from one distinct rovibrational quantum state to another, thereby elucidating aspects of chemical reactivity and energetics. The DR approach employs tunable laser excitation to prepare a molecule in a specific state and a second laser absorption step either to characterise that excitation or to probe resulting state-to-state molecular energy transfer. Typically, we use either infrared (IR) absorption or coherent Raman excitation for state preparation and ultraviolet (UV) laser-induced fluorescence (LIF) for detection. The emphasis in this work is on high state-specificity and sensitivity, to enable detailed modeling of the resulting spectroscopic and kinetic data and to provide insight into the intermolecular and intramolecular energy transfer processes involved. Figure 1 depicts the LIF-detected Raman-UVDR and IRUVDR excitation schemes.","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"27 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":"127860249","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
Laser Induced Fluorescence Probing of Highly Vibrationally Excited Acetylene: Vibrational State Mixing in the Ground and Electronically Excited States 高振动激发乙炔的激光诱导荧光探测:基态和电子激发态的振动态混合
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.ma1
F. Crim
{"title":"Laser Induced Fluorescence Probing of Highly Vibrationally Excited Acetylene: Vibrational State Mixing in the Ground and Electronically Excited States","authors":"F. Crim","doi":"10.1364/hrs.1993.ma1","DOIUrl":"https://doi.org/10.1364/hrs.1993.ma1","url":null,"abstract":"Vibrational overtone excitation and laser induced fluorescence detection identify the mixing of vibrations in the ground electronic state and determine the vibrational structure in the excited state, including the frequencies on all the ungerade vibrations.","PeriodicalId":109383,"journal":{"name":"High Resolution 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":"121059818","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
Color change and highly refractory surfaces of polycrystalline silicon of arsenic atoms of high dose implanted at low acceleration voltage, as the interesting object of the Raman spectroscopy 高剂量砷原子在低加速电压下注入多晶硅后的颜色变化和高度难熔表面，是拉曼光谱研究的有趣对象
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.pd11
Yasuyuki Saito
{"title":"Color change and highly refractory surfaces of polycrystalline silicon of arsenic atoms of high dose implanted at low acceleration voltage, as the interesting object of the Raman spectroscopy","authors":"Yasuyuki Saito","doi":"10.1364/hrs.1993.pd11","DOIUrl":"https://doi.org/10.1364/hrs.1993.pd11","url":null,"abstract":"Polycrystalline silicon surface of arsenic atoms of ≃1015 cm−2 implanted at 40keV showed color change from gold to light–red under a fluorescent light and highly refractory obstacle against exposure etching of radical fluorine excited with microwave. The refractory surface mechanism may be related to the fastening of vibration of lattice Si atoms of polycrystalline silicon. This is an interesting object for analysis of the Raman spectroscopy.","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"2 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":"122484859","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
New Spectroscopic Techniques on the Basis of Elliptically Polarized Pumping 基于椭圆偏振泵浦的新光谱技术
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.wb6
I. I. Gancheryonok, Y. Kanematsu, T. Kushida
{"title":"New Spectroscopic Techniques on the Basis of Elliptically Polarized Pumping","authors":"I. I. Gancheryonok, Y. Kanematsu, T. Kushida","doi":"10.1364/hrs.1993.wb6","DOIUrl":"https://doi.org/10.1364/hrs.1993.wb6","url":null,"abstract":"When rather high-power polarized radiation (pump) propagates in an isotropic medium, an induced anisotropy may arise due to the nonlinear character of the interaction. This anisotropy can significantly affect the polarization of the probe field as well as its intensity. The cited effect lies in the basis of nonlinear polarization spectroscopy(NPS) and optically heterodyned polarization spectroscopy(OHPS). Usually the pump beam has linear or circular polarization and the probe one is linearly polarized. More general case occurs when pumping has elliptical polarization. In this paper we show how additional \"degree of freedom\"(pump ellipticity) of such a type of excitation can be advantageously applied to the investigation of initially isotropic substances.","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"15 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":"122507955","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
Inverse Raman Spectroscopy Measurements of Line-Shift Coefficients in Hydrogen Perturbed by Argon 氩扰动氢中线移系数的反拉曼光谱测量
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.mb2
J. W. Forsman, R. Farrow, L. Rahn
{"title":"Inverse Raman Spectroscopy Measurements of Line-Shift Coefficients in Hydrogen Perturbed by Argon","authors":"J. W. Forsman, R. Farrow, L. Rahn","doi":"10.1364/hrs.1993.mb2","DOIUrl":"https://doi.org/10.1364/hrs.1993.mb2","url":null,"abstract":"High resolution Raman studies of the Q branch in H2 perturbed by Ar are relevant to combustion diagnostics and for tests of the intermolecular potential. The use of spectroscopic techniques to study combustion requires accurate models for the line shapes, which can range front Lorentzian to Gaussian to more complicated profiles1 depending on the perturber species, perturber concentration, density and temperature. Calculations with these models require estimates of the speed dependence of the line-shift and line-broadening coefficients. Modern theories are now able to predict the shifting and broadening resulting from collisions but are hampered by uncertainties in the interaction potential. One of the most studied potentials is that of H2-Ar, which has the advantage of being theoretically tractable for line shape computations. Furthermore, since the masses of Ar and molecular O2 and N2 are similar, spectral features depending on the perturber’s mass are expected to be similar. We report preliminary measurements of the density shift of the Q branch lines in H2 as a function of rotational state and temperature.","PeriodicalId":109383,"journal":{"name":"High Resolution 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":"129423076","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
Stark quantum-beat spectroscopy: The electric dipole moment of NO (A2Σ+) Stark量子光谱:NO的电偶极矩(A2Σ+)
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.tub3
J. Gray, R. Farrow, J. L. Durant, L. Thorne
{"title":"Stark quantum-beat spectroscopy: The electric dipole moment of NO (A2Σ+)","authors":"J. Gray, R. Farrow, J. L. Durant, L. Thorne","doi":"10.1364/hrs.1993.tub3","DOIUrl":"https://doi.org/10.1364/hrs.1993.tub3","url":null,"abstract":"The γ-system (A2Σ+ X2Π) of nitric oxide (NO) is observed in many environments including combustion and atmospheric applications. Molecular properties of the A2Σ+ state are thus important in collision theories used to predict A-X radiative efficiencies. These theories often involve electric-multipole expansions,1,2 in which the permanent electric dipole moment of A2Σ+ (µA) is the leading term for long-range interactions. Moreover, µA is a basic property of the molecular charge distribution and has often been used to gauge the accuracy of ab initio quantum chemistry calculations.3-6 Here we describe measurements of Stark quantum beats in the fluorescence of NO from which we derive a precise value for µA in v'=0. This is the vibrational level most often excited in laser-based methods for detecting NO. Bergeman and Zare,7 using a radio frequency-optical double-resonance technique, provide the only other measurement of µA in a different vibrational level (v'=3). We thus also determine the change in µA with v', which provides a sensitive test of computed dipole moment functions.","PeriodicalId":109383,"journal":{"name":"High Resolution 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":"116474290","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
Spectroscopic Analysis of the Transition Metal Aluminides: AlNi, AlCu, and AlZn 过渡金属铝化物:AlNi, AlCu和AlZn的光谱分析
High Resolution Spectroscopy Pub Date : 1900-01-01 DOI: 10.1364/hrs.1993.pd3
J. Behm, C. A. Arrington, T. Blume, Jon D. Langenberg, M. Morse
{"title":"Spectroscopic Analysis of the Transition Metal Aluminides: AlNi, AlCu, and AlZn","authors":"J. Behm, C. A. Arrington, T. Blume, Jon D. Langenberg, M. Morse","doi":"10.1364/hrs.1993.pd3","DOIUrl":"https://doi.org/10.1364/hrs.1993.pd3","url":null,"abstract":"A systematic gas-phase spectroscopic investigation of the transition metal aluminides has recently been initiated in this laboratory, with the aim of providing fundamental experimental measurements relevant to the chemical bonding between the p-block and d-block metals. In this study we hope to determine in what cases the aluminum atom bonds to the transition metal through a pσ vs. a pπ approach, and to investigate the possibility of pσ-dσ and pπ-dπ bonds in these mixed main group-transition metal molecules. The fundamental results obtained through the study of the transition metal aluminides may well be relevant to the forces acting between atoms in the bulk alloys of these elements, and this may provide new insights into the metallurgy of aluminum-transition metal alloys.","PeriodicalId":109383,"journal":{"name":"High Resolution Spectroscopy","volume":"140 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":"122408998","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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