New Developments in Laser Pulse Induced Field Desorption

1983 ◽  
pp. 211-216 ◽  
Author(s):  
J. H. Block ◽  
W. Drachsel ◽  
N. Ernst ◽  
Th. Jentsch ◽  
S. Nishigaki
Keyword(s):  
Laser Pulse ◽  
Field Desorption ◽  
New Developments ◽  
Induced Field

Science of High Energy, Single-Cycled Lasers

2019 ◽  
Vol 10 (01) ◽  
pp. 227-244
Author(s):  
Jonathan A. Wheeler ◽  
Gérard Mourou ◽  
Toshiki Tajima
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
High Energy ◽  
New Developments ◽  
X Ray ◽  
Ion Accelerator ◽  
Laser Acceleration ◽  
High Field Science ◽  
New Applications ◽  
Wakefield Accelerator

With the advent of the Thin Film Compression, high energy single-cycled laser pulses have become an eminent path to the future of new high-field science. An existing CPA high power laser pulse such as a commercially available PW laser may be readily converted into a single-cycled laser pulse in the 10PW regime without losing much energy through the compression. We examine some of the scientific applications of this, such as laser ion accelerator called single-cycle laser acceleration (SCLA) and bow wake electron acceleration. Further, such a single-cycled laser pulse may be readily converted through relativistic compression into a single-cycled, X-ray laser pulse. We see that this is the quickest and very innovative way to ascend to the EW (exawatt) and zs (zeptosecond) science and technology. We suggest that such X-ray laser pulses have a broad and new horizon of applications. We have begun exploring the X-ray crystal (or nanostructured) wakefield accelerator and its broad and new applications into gamma rays. Here, we make a brief sketch of our survey of this vista of the new developments.

PHOTON INDUCED FIELD DESORPTION OF WATER CLUSTERS

1989 ◽  
Vol 50 (C8) ◽  
pp. C8-153-C8-158 ◽  
Author(s):  
J. DIRKS ◽  
W. DRACHSEL ◽  
J. H. BLOCK
Keyword(s):  
Water Clusters ◽  
Field Desorption ◽  
Induced Field

Photon induced field desorption of hydrogen H+, H2+ H3+ from tungsten

1983 ◽  
Vol 46 ◽  
pp. 297-300 ◽  
Author(s):  
W. Drachsel ◽  
S. Nishigaki ◽  
N. Ernst ◽  
J.H. Block
Keyword(s):  
Field Desorption ◽  
Induced Field

PHOTON INDUCED FIELD DESORPTION OF HYDROGEN AND NOBLE GASES FROM TUNGSTEN

1986 ◽  
Vol 47 (C2) ◽  
pp. C2-145-C2-149 ◽  
Author(s):  
U. WEIGMANN ◽  
St. JAENICKE ◽  
R. PITTS ◽  
W. DRACHSEL ◽  
J. H. BLOCK
Keyword(s):  
Noble Gases ◽  
Field Desorption ◽  
Induced Field

Photon-induced field desorption of NO from Rh

2007 ◽  
Vol 39 (2-3) ◽  
pp. 95-101 ◽  
Author(s):  
W. Drachsel ◽  
Th. Teutsch
Keyword(s):  
Field Desorption ◽  
Induced Field

Quantitative nano-characterization of heterogeneous catalysts

1995 ◽  
Vol 53 ◽  
pp. 398-399
Author(s):  
P.A. Crozier ◽  
M. Pan
Keyword(s):  
Heterogeneous Catalysts ◽  
Low Dose ◽  
Imaging Techniques ◽  
Structural Features ◽  
Catalyst Characterization ◽  
New Developments ◽  
Double Phase ◽  
Phase Systems ◽  
Dose Imaging

Heterogeneous catalysts can be of varying complexity ranging from single or double phase systems to complicated mixtures of metals and oxides with additives to help promote chemical reactions, extend the life of the catalysts, prevent poisoning etc. Although catalysis occurs on the surface of most systems, detailed descriptions of the microstructure and chemistry of catalysts can be helpful for developing an understanding of the mechanism by which a catalyst facilitates a reaction. Recent years have seen continued development and improvement of various TEM, STEM and AEM techniques for yielding information on the structure and chemistry of catalysts on the nanometer scale. Here we review some quantitative approaches to catalyst characterization that have resulted from new developments in instrumentation.HREM has been used to examine structural features of catalysts often by employing profile imaging techniques to study atomic details on the surface. Digital recording techniques employing slow-scan CCD cameras have facilitated the use of low-dose imaging in zeolite structure analysis and electron crystallography. Fig. la shows a low-dose image from SSZ-33 zeolite revealing the presence of a stacking fault.

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