Spectral phase
Third-order spectral phase compensation in parabolic pulse compression
... order spectral phase terms on the quality of the recompressed pulse has, to our knowledge, not been investigated in ...remaining spectral phase degrades the temporal profile of the ...
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Spectral-phase interferometry for direct electric-field reconstruction applied to seeded extreme-ultraviolet free-electron lasers
... of spectral phase distortion during amplification [5], pure spectral diagnostics does not allow for inferring the temporal pulse ...the spectral phase, which is a crucial piece of ...
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Génération et traitement du signal optique basés sur le filtrage linéaire de phase-seule dans les domaines temporel et spectral.
... However, despite this less hopeful outlook for optics in signal processing, some researchers have remained optimistic. They argue that many advantages of optics in signal processing cannot be overlooked and instead of ...
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Spatio-spectral metrology at focus of ultrashort lasers: a phase-retrieval approach
... spatially-resolved spectral intensity is ...spatio-spectral phase properties of the unknown beam are then deduced from these interferometric ...this phase information is directly contained in ...
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Amplitude and phase measurements of femtosecond pulses shaped using spectral hole burning in free-base naphthalocyanine-doped films.
... the spectral phase that we want to engrave in the sample, we simply change the time ordering between the two pulses, thus achieving time ...and phase of the diffracted pulse are shown on the ...
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Spectral and temporal phase measurement by Optical Frequency-Domain Reflectometry
... 6. Spectral phase measurements (left) and corresponding reflectograms (right) for nominal sweep rates of 10 and 20 ...average phase variation over the optical frequency range of the measurement is ...
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A New Spatio-Spectral Morphological Segmentation For Multi-Spectral Remote-Sensing Images
... In order to analyse the structures in an image, Pesaresi and Benediktsson (2001) developed the morphological profile, based on granulometry principle (Serra 1982). The Morphological Profile is composed of a series of ...
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A Spectral Identiy Card
... of spectral analysis presented in this paper leads to an automatic process for detecting, characterizing and classifying sinusoidal waves and narrow band signals of an unknown stationary ...different ...
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Spectral Detection on Sparse Hypergraphs
... Spectral Detection on Sparse Hypergraphs Maria Chiara Angelini 1 , Francesco Caltagirone 2 , Florent Krzakala 2,3 and Lenka Zdeborov´a 4 Abstract— We consider the problem of the assignment of nodes into ...
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Spectral Determinants on Mandelstam Diagrams
... the spectral parameter so that the only missing ingredient is a precise description of the resolvent of the operator ∆ at the bottom of its continuous spectrum (see Theorem 2 ...
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Attosecond spectral shearing interferometry
... If the x-ray field consists of two identical pulses, centered at t t0 and t t0 , and short compared to the laser period, the laser field induces a well-defined energy shift W Wt0 [r] ...
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Towards spectral mathematical morphology
... of spectral difference function choice in the performance of CRA-SMF in suppressing salt-and-pepper ...other spectral difference functions, since both of them manage to almost completely remove the ...
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l1-spectral clustering algorithm: a robust spectral clustering using Lasso regularization
... recently, spectral clustering algorithms, popularized over years by Shi and Malik (2000); Ng et ...suggest, spectral clustering algorithms mainly use the spectral properties of the graph by (i) ...
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Spectral Processing of Self-Mixing Interferometric Signal Phase for Improved Vibration Sensing Under Weak- and Moderate-Feedback Regime
... paper, spectral processing of laser Self-Mixing (SM) interferometric signal phase has been carried out allowing better measurement accuracy for harmonic and arbitrarily shaped vibrations for an optical ...
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Understanding Big Data Spectral Clustering
... Fig. 3. Leading four eigenvectors of L (red) versus ˆ L (black) and theoretical class-wise means (blue); MNIST data. mechanism of kernel spectral clustering. Our first theoretical findings allow one to already ...
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Trou spectral d’un processus d’exclusion
... Conclusion et perpectives Généralement, le calcul du spectral gap est di¢ cile, des fois impossible à calculer. Les auteurs qui travaillent sur ce sujet procèdent par des estimations précises à l’aide de ...
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Examples of spectral minimal partitions
... [6] L. A. Cafferelli and F.-H. Lin. An optimal partition problem for eigenvalues. J. Sci. Comput., 31(1-2):5–18, 2007. [7] M. Conti, S. Terracini, and G. Verzini. On a class of optimal partition problems related to the ...
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Calculation of beta spectral shapes
... Our determination of the screening e ffect is more accurate than the usual one, because we take into account the spatial extension of the electron wave functions. For the first time, we took into account the atomic ...
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Regularity of optimal spectral domains
... A first general result, stated in dimension 2, asserts that for a wide class of shape functionals, the optimal sets, under convexity constraint, happens to be polygons.. It implies that,[r] ...
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Spectral properties of chaotic processes
... transforms of (ξ t ). We will apply our results to several parametric Lasota-Yorke maps [18] which are piecewise expanding maps of the interval [0, 1]. It is well known [6, 8, 17, 19, 20] that such maps admit a unique ...
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