Results 251 to 260 of about 140,378 (296)
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Interference Effects Between Different Optical Harmonics.
Physical Review Letters, 1982It is shown that destructive interference between two coherent excitation pathways from different optical harmonics, a fundamental and a third harmonic, inhibits resonance-enhanced multiphoton ionization. Once the role of the third harmonic is realized, the interference follows naturally from simple considerations of Fermi's "golden rule" and Maxwell's
D. J. Jackson, J. J. Wynne
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The Interference of Subjective Harmonics
The Journal of the Acoustical Society of America, 1933The purpose of the work reviewed in this paper was to devise a techique for producing interference of subjective harmonics under controlled conditions and to investigate the nature of some of the effects of such interference.
Ernest K. Chapin, F. A. Firestone
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Estimation of the Harmonic Signal Parameters in the Complex Interferences
2020 Signal Processing Workshop (SPW), 2020Methods for estimation of the harmonic signal parameters with non-Gaussian interference are presented. The modeling of the work of this processing method is carried out. Proposed methods of the signal parameters estimation allows to increase the technical characteristics of radio engineering systems on the base of signal processing.
Igor Prokopenko +3 more
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Destructive interference of high harmonics generated in mixed gases
2007 Quantum Electronics and Laser Science Conference, 2007We demonstrate destructive interference of high harmonics generated in a He-Ne mixed gas, which offers novel methods for observing the underlying attosecond electron dynamics as well as shaping harmonic pulses and measuring harmonic phases.
Tsuneto Kanai +3 more
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Excision of a discontinuous-frequency interference signal with harmonic structure
2015 49th Asilomar Conference on Signals, Systems and Computers, 2015We consider the problem of excising a sinusoidal signal which is piecewise constant in frequency with random transition times, and which is duplicated at fixed frequency offsets. This signal interferes with a signal of interest. To remove this interfering signal, the most likely interfering frequencies at each point in time are estimated using a pair ...
McKay E. Bonham +3 more
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Harmonic Interference of HVDC in Transmission Systems
IFAC Proceedings Volumes, 1992Abstract The HVDC-link in Durnrohr (Austria) has now nine years of operational experience as the first interconnection between the western and eastern transmission systems in Europe. At the moment two further HVDC-links are under erection, one in South-East Austria and the other in Germany.
G. Brauner, G. Moraw
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Improving AFM Images with Harmonic Interference by Spectral Analysis
Microscopy and Microanalysis, 2012AbstractAtomic force microscopy (AFM) is one of the most sensitive tools for nanoscale imaging. As such, it is very sensitive to external noise sources that can affect the quality of collected data. The intensity of the disturbance depends on the noise source and the mode of operation.
Marek, Kiwilszo +3 more
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Hydrodynamic Interference Of Two Cylinders In Harmonic Flow
Offshore Technology Conference, 1980ABSTRACT The lift, drag, and inertia coefficients have been determined experimentally for two cylinders at various positions subjected to harmonically oscillating flow. The cylinders were placed at 0, 30°, 60°, and 90° to the flow direction in separate series of tests.
Turgut Sarpkaya, Mehmet Cinar
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Quantum-Interference Controlled High Harmonics in Semiconductors
Conference on Lasers and Electro-Optics, 2017Theory — experiment comparison reveals how an electronic quantum interference introduces several macroscopic signatures to the high-harmonic emission in semiconductors, making it possible to shape temporal, spectral, and polarization-direction features of sources on a subcycle level.
M. Kira +5 more
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Measurement of Harmonic Phase Differences by Interference of Attosecond Light Pulses
Physical Review Letters, 2005By using a self-referencing technique, we have experimentally measured the influence of the carrier-envelope phase of femtosecond light pulses on the phase of the electric field of the radiation produced by high-order harmonic generation. We show that, in particular experimental conditions, the temporal evolution of the electric field of the attosecond
Sansone G +9 more
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