Vacuum Ultraviolet Spectroscopy

  • Filename: vacuum-ultraviolet-spectroscopy.
  • ISBN: 0080543480
  • Release Date: 2000-12-21
  • Number of pages: 307
  • Author: James A. Samson
  • Publisher: Academic Press

Techniques of Vacuum Ultraviolet Spectroscopy was first published in 1967. In the three decades since, the techniques associated with vacuum ultraviolet spectroscopy have been greatly expanded. Originally published as two volumes in the serial "Experimental Methods in the Physical Sciences," Vacuum Ultraviolet Spectroscopy combines in one paperback volume information on the many advances in vacuum ultraviolet (VUV) research. In addition, the book provides students and researchers with concise reviews of the important aspects of designing experiments in the VUV region. This is the only comprehensive treatise describing the use of synchrotron and other light sources for research, along with the new technologies in optical elements, multilayers, mirror coatings, soft x-ray zone plates, VUV detectors, interferometric spectrometers, and subjects such as spectromicroscopy, lithography, and photon-induced fluorescence. Vacuum Ultraviolet Spectroscopy is an ideal handbook both for the beginner and for the experienced researcher in any field requiring the use of VUV radiation. Key Features * Detailed review of synchrotron radiation sources including undulators and wigglers * Comprehensive outline of monochromator design * Concise review of optics theory for multilayers, spectrometers, and zone plates * Information about other important VUV sources such as laser produced plasmas and Electron Beam Ion Trap (EBIT) sources * Applications such as spectromicroscopy, lithography, and fluorescence

Vacuum Ultraviolet Spectroscopy I

  • Filename: vacuum-ultraviolet-spectroscopy-i.
  • ISBN: 0080860214
  • Release Date: 1998-08-17
  • Number of pages: 420
  • Author:
  • Publisher: Academic Press

This volume is for practitioners, experimentalists, and graduate students in applied physics, particularly in the fields of atomic and molecular physics, who work with vacuum ultraviolet applications and are in need of choosing the best type of modern instrumentation. It provides first-hand knowledge of the state-of-the-art equipment sources and gives technical information on how to use it, along with a broad reference bibliography. Key Features * Aimed at experimentalists who are in need of choosing the best type of modern instrumentation in this applied field * Contains a detailed chapter on laboratory sources * Provides an up-to-date description of state-of-the-art equipment and techniques * Includes a broad reference bibliography

Ultraviolet Spectroscopy And Uv Lasers

  • Filename: ultraviolet-spectroscopy-and-uv-lasers.
  • ISBN: 9780824744069
  • Release Date: 2002-02-25
  • Number of pages: 584
  • Author: Prabhakar Misra
  • Publisher: CRC Press

This volume presents a complete and thorough examination of advances in the instrumentation, evaluation, and implementation of UV technology for reliable and efficient data acquisition and analysis. It provides real-world applications in expanding fields such as chemical physics, plasma science, photolithography, laser spectroscopy, astronomy and atmospheric science.

Chemical Spectroscopy and Photochemistry in the Vacuum Ultraviolet

  • Filename: chemical-spectroscopy-and-photochemistry-in-the-vacuum-ultraviolet.
  • ISBN: 9789401021531
  • Release Date: 2012-12-06
  • Number of pages: 618
  • Author: Camille Sandorfy
  • Publisher: Springer Science & Business Media

It is probably safe to predict that the future of chemistry is linked to the excited states of molecules and to other short lived species, ions and free radicals. Molecules have only one ground state but many excited states. However large the scope of normal, ground state chemistry might be, above and beyond it lies the world of excited states, each one having its own chemis try. The electronic transitions leading to the excited states, either discrete of continuous, are examined in molecular elec tronic spectroscopy. Electronic spectroscopy is the queen of all spectroscopies: for if we have the resolution we have everything. Vnfortunately, the chemist who is interested in the structure and reactions of larger molecules must often renounce all that infor mation. The spectra are complex and often diffuse; resolution does not always help. To understand such spectra he must look at whole families of molecules; to some extent structural analogies help. Let us call this chemical spectroscopy and handle it with care. In order to understand the properties of molecules we also need theory. We know that molecular problems are, in principle, soluble by the methods of quantum mechanics. Present time quan tum chemistry is able to provide a nearly accurate description of not too large molecules in their ground states. It is probablY again safe to predict that the future of quantum chemistry is connected with molecular excited states or, generally spoken, the accurate handling of the open-shell problem.

Two Studies in Gas Phase Ion Spectroscopy

  • Filename: two-studies-in-gas-phase-ion-spectroscopy.
  • ISBN: 3642231292
  • Release Date: 2011-10-15
  • Number of pages: 162
  • Author: Matthew J. Simpson
  • Publisher: Springer Science & Business Media

In this thesis Matthew Simpson reportstwo areas of work in gas ion spectroscopy, each investigation in itself worthy of a PhD. The first study uses tunable vacuum-ultraviolet radiation from a synchrotron to identify negative ions from twenty four photoexcited polyatomic molecules in the gas phase. From these experiments, Matthew collects a vast amount of data and summarises and reviews ion-pair formation from polyatomic molecules. The second study is on selected ion flow tube mass spectrometry. Matthew investigates the reactions of cations and anions with ethene, monofluoroethene, 1,1-difluoroethene and tetrafluoroethene. In this study Matthew tries to explain why certain products are formed preferentially over other products at a microscopic level of understanding. The data recorded in this thesis form the most comprehensive collection of information about anion formation and are the basis of a review and numerous articles in specialist journals.

Vacuum Ultraviolet Photoionization and Photodissociation of Molecules and Clusters

  • Filename: vacuum-ultraviolet-photoionization-and-photodissociation-of-molecules-and-clusters.
  • ISBN: 9810204302
  • Release Date: 1991
  • Number of pages: 572
  • Author: Cheuk-Yiu Ng
  • Publisher: World Scientific

This monograph reviews the recent progress in vacuum ultraviolet (VUV) photoionization and photodissociation processes. Photoionization, photoelectron, and fluorescence spectroscopic techniques have played an important role in revealing the photoionization and photodissociation dynamics of molecules in the vacuum ultraviolet region and in providing accurate energetic and spectroscopic information of ions as well as neutral molecules. The book represents the first detailed review of major experimental developments in the studies of single vacuum ultraviolet photon ionization and dissociation processes of gaseous molecules and clusters.

Vacuum Ultraviolet Photoelectron Emission Spectroscopy of Water and Aqueous Solutions

  • Filename: vacuum-ultraviolet-photoelectron-emission-spectroscopy-of-water-and-aqueous-solutions.
  • ISBN: OCLC:221008050
  • Release Date: 1980
  • Number of pages: 98
  • Author: Iwao Watanabe
  • Publisher:

Experimental methods are developed for the photoelectron emission spectroscopy of water and aqueous solutions (halides, hydroxyl ion, phosphoric acid and phosphates) up to 10.5 eV. The yield for emission of photoelectrons by the liquid into water vapor is measured as a function of photon energy. Threshold energies are determined by extrapolation from emission spectra. Photoelectron emission by liquid water obeys Urbach's rule and has a threshold energy of 9.3 + or - 0.3 eV. This threshold is compared with the literature value of 8.7 + or - 0.1 eV for the threshold energy for amorphous ice. Threshold energies for halide and hydroxyl ions are obtained by application of the Brodsky-Tsarevsky theory of photoelectron emission by solutions: 8.7, 7.9, 7.2, 8.4 eV, respectively, for Cl-, Br-, I-, OH- ions. The emission spectrum for Br- is deconvoluted for spin-orbit coupling. The threshold energies of these ions are higher by 1.6 to 1.8 eV than the energies at the maxima of the corresponding charge-transfer-to-solvent absorption spectra. The difference of 1.6 to 1.8 eV agrees with a theoretical prediction. Preliminary results are reported on the effect of ionic charge on the emission of phosphoric acid and phosphate ions. (Author).

DMCA - Contact