scholarly journals Enabling time-resolved 2D spatial-coherence measurements using the Fourier-analysis method with an integrated curved-grating beam monitor

2020 ◽  
Vol 45 (19) ◽  
pp. 5591
Author(s):  
Kai Bagschik ◽  
Michael Schneider ◽  
Jochen Wagner ◽  
Ralph Buss ◽  
Matthias Riepp ◽  
...  
Keyword(s):  
Fourier Analysis ◽  
Spatial Coherence ◽  
Analysis Method ◽  
Time Resolved ◽  
Beam Monitor

scholarly journals Direct 2D spatial-coherence determination using the Fourier-analysis method: multi-parameter characterization of the P04 beamline at PETRA III

2020 ◽  
Vol 28 (5) ◽  
pp. 7282 ◽  
Author(s):  
Kai Bagschik ◽  
Jochen Wagner ◽  
Ralph Buß ◽  
Matthias Riepp ◽  
André Philippi-Kobs ◽  
...  
Keyword(s):  
Fourier Analysis ◽  
Spatial Coherence ◽  
Analysis Method

New Data Analysis Method for Time-Resolved Infrared Photoluminescence Spectroscopy

2020 ◽  
pp. 000370282096970
Author(s):  
Kacper Grodecki ◽  
Krzysztof Murawski
Keyword(s):  
Data Analysis ◽  
Photoluminescence Spectrum ◽  
Streak Camera ◽  
Photoluminescence Spectroscopy ◽  
Analysis Method ◽  
Time Resolved ◽  
Time Constants ◽  
Data Treatment ◽  
Typical Time ◽  
Time Resolved Photoluminescence

In this article, a new data treatment based on time-resolved photoluminescence is presented. It works as a streak camera for infrared. A time-resolved photoluminescence spectrum for the HgCd0.33Te0.67 sample at 120 K was performed and analyzed. Typical time-resolved photoluminescence measurements, to compare our results with literature, were conducted. An interpretation of the behavior for three different time constants found in the signal is proposed.

scholarly journals Existence Results for a Fully Fourth-Order Boundary Value Problem

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Yongxiang Li ◽  
Qiuyan Liang
Keyword(s):  
Fixed Point ◽  
Fixed Point Theorem ◽  
Boundary Value Problem ◽  
Fourier Analysis ◽  
Growth Condition ◽  
Fourth Order ◽  
Boundary Value ◽  
Existence Of Solution ◽  
Existence Results ◽  
Analysis Method

We discuss the existence of solution for the fully fourth-order boundary value problemu(4)=f(t,u,u′,u′′,u′′′),0≤t≤1,u(0)=u(1)=u′′(0)=u′′(1)=0. A growth condition onfguaranteeing the existence of solution is presented. The discussion is based on the Fourier analysis method and Leray-Schauder fixed point theorem.

scholarly journals Spatial coherence determination from the Fourier analysis of a resonant soft X-ray magnetic speckle pattern

2016 ◽  
Vol 24 (20) ◽  
pp. 23162 ◽  
Author(s):  
Kai Bagschik ◽  
Robert Frömter ◽  
Leonard Müller ◽  
Wojciech Roseker ◽  
Judith Bach ◽  
...  
Keyword(s):  
Fourier Analysis ◽  
Speckle Pattern ◽  
Spatial Coherence ◽  
X Ray

Motion at an Explosive Source as Deduced From Surface Waves

1960 ◽  
Vol 31 (1-2) ◽  
pp. 5-17
Author(s):  
Carl Kisslinger
Keyword(s):  
Fourier Analysis ◽  
Vertical Acceleration ◽  
Analysis Method ◽  
Phase Velocities ◽  
The Earth ◽  
Analysis Technique ◽  
Explosive Source ◽  
History Of ◽  
Frequency Components ◽  
Fourier Analysis Technique

Abstract The history of events occurring near the source following a small explosion has been deduced from the Rayleigh waves recorded at two distances. The Fourier analysis method developed by Sato, and Lamb’s solution for the displacement on a half-space have been employed in two distinct approaches to this problem. The displacement history from the first approach shows an essentially rectilinear vibration of the earth partiele, following the initial compression. The second technique yields the vertical point force equivalent to the explosion. The vertical acceleration at the source from the first method agrees fairly well in general form with the force found in the second. Information about the phase velocities and the initial phases of the constituent frequency components is a valuable by product of the Fourier analysis technique.

Product Debug: Speed Problem Related to Unexpected RC Delay

2010 ◽  
Author(s):  
J.G. van Hassel ◽  
F. Zachariasse
Keyword(s):  
Failure Analysis ◽  
Failure Mechanisms ◽  
Audio Signal ◽  
New Product ◽  
Analysis Method ◽  
Standard Analysis ◽  
Time Resolved ◽  
Defect Localization ◽  
Rc Delay ◽  
Comprehensive Study

Abstract In new product designs increasing effort is needed to observe and prove failure mechanisms or process marginalities. For advanced failure analysis Soft Defect Localization (SDL) [1] and Time Resolved Emission (TRE) [2,3] have now become a standard analysis method. Both techniques require a close co-operation between designers and analysts. In this paper we will discuss a comprehensive study to find the mechanism behind a speed problem in the digital part of an audio signal processor. The additional delay was related to unwanted routing through poly-silicide in timing critical circuitry.

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