TITLE

Cavity ringdown laser absorption spectroscopy and time-of-flight mass spectroscopy of jet-cooled copper silicides

AUTHOR(S)
Scherer, J. J.; Paul, J. B.; Collier, C. P.; Saykally, R. J.
PUB. DATE
April 1995
SOURCE
Journal of Chemical Physics;4/1/1995, Vol. 102 Issue 13, p5190
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The cavity ringdown technique has been implemented for electronic spectroscopy of jet-cooled CuSi produced in a pulsed UV laser vaporization plasma reactor. A time-of-flight mass spectrometer is used to simultaneously monitor species produced in the supersonic expansion and allows correlation studies to be performed. Seven rotationally resolved vibronic bands have been measured near 400 nm, yielding spectroscopic constants for the 2Σ ground and excited states. Vibronic isotope shifts, together with rotational line positions, permit the unambiguous determination of the spectral carrier and vibronic assignment. Since no ab initio studies for the CuSi molecule exist, a comparison to ab initio studies of the related NiSi molecule is presented. Time-of-flight mass spectrometric measurements indicate the facile formation of CuxSiy clusters containing multiple copper atoms, in contrast to earlier mass spectrometric work on transition metal silicides. © 1995 American Institute of Physics.
ACCESSION #
7614604

 

Related Articles

  • On the copper oxide neutral cluster distribution in the gas phase: Detection through 355 nm and 193 nm multiphoton and 118 nm single photon ionization. Matsuda, Y.; Shin, D. N.; Bernstein, E. R. // Journal of Chemical Physics;3/1/2004, Vol. 120 Issue 9, p4165 

    The distribution of neutral copper oxide clusters in the gas phase created by laser ablation is detected and characterized through time-of-flight mass spectroscopy (TOFMS). The neutral copper oxide clusters are ionized by two different approaches: Multiphoton absorption of 355 and 193 nm...

  • Rapid Detection of Conotoxin SO3 in Serum Using Cu-Chelated Magnetic Beads Coupled with Matrix-Assisted Laser Desorption/lonization Time-of-Flight Mass Spectrometry. Junjian Fang; Fangting Dong; Na Wang; Kun He; Bingyu Liu; Shengming Wu; Ailing Li; Xuemin Zhang // Journal of Analytical Toxicology;Jun2009, Vol. 33 Issue 5, p272 

    The article presents a research which discusses the peptide toxins detection in serum using the copper-chelated magnetic bead (Cu-Magbeads) coupled with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Using MALDI-TOF-MS, the effect of methanol...

  • High-order harmonic generation at 4 MHz as a light source for time-of-flight photoemission spectroscopy. Chiang, Cheng-Tien; Blättermann, Alexander; Huth, Michael; Kirschner, Jürgen; Widdra, Wolf // Applied Physics Letters;8/13/2012, Vol. 101 Issue 7, p071116 

    We demonstrate high-order harmonic generation (HHG) at 4 MHz driven by a long-cavity femtosecond laser oscillator. The laser output is used directly in a tight focusing geometry, where the harmonics are generated from a gas jet with high backing pressure. The harmonic light source is applied to...

  • Features of the film-growth conditions by cross-beam pulsed-laser deposition. Tselev, A.; Gorbunov, A.; Pompe, W. // Applied Physics A: Materials Science & Processing;1999, Vol. 69 Issue 3, p353 

    Abstract. Spatial and energetic characteristics of the plasma plume by cross-beam pulsed-laser deposition (CBPLD) were investigated. Effective droplets filtering together with high efficiency of material usage are observed by this approach. Time-of-flight (TOF) technique with electrostatic ion...

  • Interaction of laser ablation plasma plume with grid screens. Anisimov, V.N.; Baranov, V. Yu. // Applied Physics Letters;11/13/1995, Vol. 67 Issue 20, p2922 

    Presents results of ablation plasma interaction with grid screens using emission spectroscopy and time-of-flight technique. Effect of velocity distribution transformation of the ion flow; Interaction of two plasma flows; Observance of three modes of velocity distribution function transformation.

  • Femtosecond laser ablation of gallium arsenide investigated with time-of-flight mass spectroscopy. Cavalleri, A.; Sokolowski-Tinten, K.; Bialkowski, J.; von der Linde, D. // Applied Physics Letters;5/11/1998, Vol. 72 Issue 19 

    We have investigated femtosecond laser-induced ablation of gallium arsenide using time-of-flight mass spectroscopy. At the ablation threshold, we estimated surface temperatures on the order of 3500 K. We observed a clear thresholdlike effect in the number of detected particles and with...

  • High-energy negative ions from expansion of high-temperature femtosecond laser plasma. Chutko, O.V.; Gordienko, V.M.; Lachko, I.M.; Mar'in, B.V.; Savel'ev, A.B.; Volkov, R.V. // Applied Physics B: Lasers & Optics;Dec2003, Vol. 77 Issue 8, p831 

    The atomic, charge and energy distributions of ions in expanding femtosecond laser plasmas have been studied by means of time-of-flight mass–charge spectroscopy. High-energy negative and positive ions with energies of up to 35 keV have been detected during the interaction of 200-fs laser...

  • Time-of-flight analysis of light pulses with a temporal resolution of 100 ps. Nielsen, T.; Bormann, F.; Wolbeck, S.; Spiecker, H.; Burrows, M.D.; Andresen, P. // Review of Scientific Instruments;May96, Vol. 67 Issue 5, p1721 

    Describes a direct way to measure the time evolution of single light pulses in the subnanosecond region using time-of-flight analysis. Principle of operation; Calibration; Construction of the fiber array; Construction of the detector; Application; Simultaneous two-dimensional spatial resolution.

  • Study of ultraviolet-laser ablation products of several polymers using time-of-flight mass spectroscopy. Hansen, S. G. // Journal of Applied Physics;8/1/1989, Vol. 66 Issue 3, p1411 

    Presents information on a study which examined the material ejected into vacuum by pulsed laser ablation using time-of-flight mass spectroscopy (TOFMS). Ionization of permanent organic vapors; Laser ablation products from polymers; Advantages of employing two lasers and TOFMS in experiments.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics