Results 41 to 50 of about 140,378 (296)

High-order harmonic generation from diatomic molecules with large internuclear distance: The effect of two-center interference

, 2008
In the present paper, we investigate the high-order harmonic generation (HHG) from diatomic molecules with large internuclear distance using a strong field approximation (SFA) model.
Chen, Y. J., Liu, J.
core   +1 more source

Transition to sub-Planck structures through the superposition of q-oscillator stationary states [PDF]

, 2010
We investigate the superposition of four different quantum states based on the q-oscillator. These quantum states are expressed by means of Rogers-Szego polynomials.
Jafarov, EI, Van der Jeugt, Joris
core   +3 more sources

Quantum path interference in the wavelength dependence of high-harmonic generation

2008 Conference on Lasers and Electro-Optics, 2007
We investigate the dependence of the intensity of radiation due to high-harmonic generation (HHG) as a function of the wavelength of the fundamental driver field. Superimposed on a smooth power-law dependence observed previously we find surprisingly strong and rapid fluctuations on a fine wavelength scale.
Schiessl, K., Ishikawa, K. L., Persson, E., Burgdörfer, J.   +3 more
openaire   +3 more sources

High Harmonic Generation Via Continuum Wave-Packet Interference [PDF]

Physical Review Letters, 2010
High-order harmonic generation (HHG) is investigated theoretically in the over-the-barrier ionization (OBI) regime revealing the strong signature of interference between two separately ionized and separately propagating free wave packets of a single electron.
Kohler, Markus C., Ott, Christian, Raith, Philipp, Heck, Robert, Schlegel, Iris, Keitel, Christoph H., Pfeifer, Thomas   +6 more
openaire   +5 more sources

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Reducing power line interference with the continuous automatic cab signalling channel

Вестник Научно-исследовательского института железнодорожного транспорта
Introduction. Interference in the continuous automatic cab signalling channel distorts transmitted signals and causes signalling malfunctions. Reduction of interference in the channel involved a previously proposed receiver with quadrature channels and ...
R. R. Yusupov, A. S. Khokhrin
doaj   +1 more source

Controlling high-harmonic generation and above-threshold ionization with an attosecond-pulse train [PDF]

, 2006
We perform a detailed analysis of how high-order harmonic generation (HHG) and above-threshold ionization (ATI) can be controlled by a time-delayed attosecond-pulse train superposed to a strong, near-infrared laser field.
C. Figueira de Morisson Faria, J. Biegert, K. C. Kulander, M. Lewenstein, P. Salières, P. Villain   +5 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Studying the influence of correction codes on coherent reception of M-PSK signals in the presence of noise and harmonic interference

Российский технологический журнал
Objectives. Signals with multiple phase shift keying (M-PSK) exhibiting good spectral and energy characteristics are successfully used in many information transmission systems.
V. D. Nguyen
doaj   +1 more source

DC-electric-field-induced and low-frequency electromodulation second-harmonic generation spectroscopy of Si(001)-SiO$_2$ interfaces [PDF]

, 1998
The mechanism of DC-Electric-Field-Induced Second-Harmonic (EFISH) generation at weakly nonlinear buried Si(001)-SiO$_2$ interfaces is studied experimentally in planar Si(001)-SiO$_2$-Cr MOS structures by optical second-harmonic generation (SHG ...
A. A. Fedyanin, A. N. Rubtsov, A. Nahata, A. V. Melnikov, A. W. Stephens, B. S. Mendoza, B. S. Mendoza, C. G. B. Garrett, C. H. Bjorkman, C. H. Lee, C. K. Chen, C. Kittel, C. Meyer, C. Ohlhoff, C. W. van Hasselt, C. W. van Hasselt, D. E. Aspnes, E. D. Mishina, G. L. Richmond, J. Bloch, J. E. Sipe, J. E. Sipe, J. F. McGilp, J. I. Dadap, J. I. Dadap, J. I. Dadap, J. I. Dadap, J. I. Dadap, J. I. Dadap, J. L. Daschbach, J. M. Lantz, J. Miragliotta, J. Qi, J. Qi, J. R. Power, K. Pedersen, M. C. Downer, M. Cardona, M. H. Anderson, M. ter Beek, N. Bloembergen, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, O. A. Aktsipetrov, P. Bratu, P. Godefroy, P. Guyot-Sionnest, P. R. Fischer, P. T. Wilson, P. T. Wilson, P. Thiansathaporn, R. H. Kingston, R. M. Corn, R. W. Kempf, T. Ando, T. F. Heinz, W. Daum, X. F. Hu, Y. R. Shen, Z. Xu   +71 more
core   +2 more sources