منابع مشابه
Transient Coherent Raman Scattering in the Time and Frequency Domain
A new type of Raman spectroscopy is presented: After transient excitation of molecular modes coherently scattered Raman spectra are investigated in" a delayed probing experiment. The spectral position of the Raman mode is observed after long delay times. The dephasing time is obtained from the time dependence of the scattered amplitudes. Frequency disturbing non-resonant susceptibilities are el...
متن کاملCapabilities and Limitations of Coherent Optical Frequency–domain Reflectometry
Optical time-domain reflectometry (OTDR), originally developed by Barnoski and Jensen in 1976 [1], is now a well-established tool for non-destructive characterization of optical networks and components. In general an ideal reflectometry system would have a spatial resolution high enough to locate closely separated sites of reflection within the network under test. In addition the sensitivity wo...
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The dependence of various types of linear signals on the phase profile of broadband optical pulses is examined using fundamental time translation invariance symmetry of multipoint correlation functions. The frequency-domain wave-mixing analysis presented here unifies several arguments made earlier with respect to the conditions whereby coherent control schemes may be used.
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EKG synchronized ensemble averaging of the impedance cardiogram tends to blur or suppress signal events due to signal jitter or event latency variability. Although ensemble averaging provides some improvement in the stability of the signal and signal to noise ratio under conditions of nonperiodic influences of respiration and motion, coherent averaging techniques were developed to determine whe...
متن کاملDeriving Lifetime Maps in the Time/Frequency Domain of Coherent Structures in the Turbulent Boundary Layer
The lifetimes of coherent structures are derived from data correlated over a 3 sensor array sampling streamwise sidewall pressure at high Reynolds number (> 108). The data were acquired at subsonic, transonic and supersonic speeds aboard a Tupolev Tu-144. The lifetimes are computed from a variant of the correlation length termed the lifelength. Characteristic lifelengths are estimated by fittin...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2012
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.4723682