High Resolution Infrared Spectroscopy Of Transient Molecules Development Of Broadband Optical Parametric Oscillators
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High resolution Infrared Spectroscopy of Transient Molecules Development of Broadband Optical Parametric Oscillators
Author | : Jürgen Krieg |
Publsiher | : Unknown |
Total Pages | : 129 |
Release | : 2012 |
Genre | : Electronic Book |
ISBN | : 3954040123 |
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Influence of Internal States on Ion Molecule Reactions in a Temperature Variable 22 Pole Ion Trap
Author | : Sabrina Gärtner |
Publsiher | : Cuvillier Verlag |
Total Pages | : 202 |
Release | : 2014-04-24 |
Genre | : Science |
ISBN | : 9783736946897 |
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Chemical reactions between ions and neutral gas are very important in the interstellar medium, since they usually have much lower barriers than neutral-neutral reactions. Thus, they are more likely to take place at low temperatures. In this work, the endothermic reactions of CH2D+, H2D+, and N+ with H2 have been investigated in a temperature variable 22-pole ion trap. Under the chosen conditions inside the trap the chemical processes are comparable to those in typical astrophysical environments. At low temperatures, the reactions mentioned above depend very sensitively on the translational and internal energies of the reaction partners. This dependence can be utilized to gain information on the energy levels or the population of the internal states. Based on this sensitivity, two different types of investigations were performed in this work. High resolution spectra of CH2D+ were obtained, resulting in improved predictions for pure rotational transitions. First steps were made towards a detailed understanding of the processes in laser induced reactions, often leading to non-Gaussian line profiles. In addition, the influence of internal states on ion-molecule reactions allowed to determine the purity of para hydrogen samples and yielded insight into the reaction kinetics of the system N+ + H2.
State of the art Laser Gas Sensing Technologies
Author | : Yufei Ma,Aurore Vicet,Karol Krzempek |
Publsiher | : MDPI |
Total Pages | : 278 |
Release | : 2020-03-05 |
Genre | : Technology & Engineering |
ISBN | : 9783039283989 |
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Trace gas sensing technologies are widely used in many applications, such as environmental monitoring, life science, medical diagnostics, and planetary exploration. On the one hand, laser sources have developed greatly due to the rapid development of laser media and laser techniques in recent years. Some novel lasers such as solid-state, diode, and quantum cascade lasers have experienced significant progress. At present, laser wavelengths can cover the range from ultraviolet to terahertz, which could promote the development of laser gas sensing technologies significantly. On the other hand, some new gas sensing methods have appeared, such as photothermal spectroscopy and photoacoustic spectroscopy. Laser spectroscopy-based gas sensing techniques have the advantages of high sensitivity, non-invasiveness, and allowing in situ, real-time observation. Due to the rapid and recent developments in laser source as well as the great merits of laser spectroscopy-based gas sensing techniques, this book aims to provide an updated overview of the state-of-the-art laser gas sensing technologies.
Molecular and Laser Spectroscopy
Author | : V.P. Gupta |
Publsiher | : Elsevier |
Total Pages | : 362 |
Release | : 2017-09-18 |
Genre | : Science |
ISBN | : 9780128498828 |
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Molecular and Laser Spectroscopy: Advances and Applications provides students and researchers with an up-to-date understanding of the fast-developing area of molecular and laser spectroscopy. Editor V.P. Gupta has brought together the eminent scientists on a selection of topics to develop a systematic approach, first covering basic principles needed to understand each cutting-edge technique and application. This book acts as a standard reference for advanced students of molecular and laser spectroscopy and as a graduate text for new entrants in the field. The book covers a wide range of applications of molecular and laser spectroscopy in diverse areas ranging from materials to medicine and defence, biomedical research, environmental monitoring, forensic investigations, food and agriculture, and chemical, pharmaceutical and petrochemical processes. Researchers and scientific personnel in these fields will learn the latest techniques in order to put them to practical use in their work. Covers several areas of spectroscopy research in a single volume, saving researchers time Includes exhaustive lists of research articles, reviews and books at the end of each chapter to point readers in the right direction for further learning Features illustrative examples of the varied applications Serves as a practical guide to those interested in using molecular and laser spectroscopy tools in their research and field applications
Scientific and Technical Aerospace Reports
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 836 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : UIUC:30112067190055 |
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Journal of the Optical Society of America
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 135 |
Release | : 1985-05 |
Genre | : Atomic spectroscopy |
ISBN | : UCSD:31822009167503 |
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Optics Letters
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 640 |
Release | : 2007 |
Genre | : Optics |
ISBN | : UOM:39015072607800 |
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Handbook of Vibrational Spectroscopy 5 Volume Set
Author | : John M. Chalmers,Peter R. Griffiths |
Publsiher | : Wiley-Blackwell |
Total Pages | : 962 |
Release | : 2002-02-15 |
Genre | : Science |
ISBN | : UVA:X004591579 |
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THE DEFINITIVE RESOURCE The first truly comprehensive work on vibrational spectroscopy, providing a one-stop reference for infrared, near-infrared and Raman spectroscopy. AUTHORITATIVE, ... With contributions from acknowledged leaders in the field, the calibre of the editors and authors speaks for itself. Volume 1: Theory and Instrumentation Volume 2: Sampling Techniques Volume 3: Sample Characterization and Spectral Data Processing Volume 4: Applications in Industry, Materials and the Physical Sciences Volume 5: Applications in Life, Pharmaceutical and Natural Sciences COMPREHENSIVE, ... Covering all aspects of infrared, near-infrared and Raman spectroscopy the five volumes also include coverage of associated techniques, such as inelastic neutron scattering, electron energy loss and cavity ringdown spectroscopy. AND ON YOUR WAVELENGTH. Each of the extensively referenced articles comprises a brief introduction as well as in-depth coverage of the subject. The result... a resource that will be useful for both the beginner to the field as well as the expert.