搜索结果: 1-15 共查到“物理学 laser pulses”相关记录21条 . 查询时间(0.131 秒)
Cornell engineers used precisely timed laser pulses to control changeable properties in a quantum material, pioneering a method that may have wide applications across a class of materials with immense...
Waveform-Controlled Terahertz Radiation from the Air Filament Produced by Few-Cycle Laser Pulses
Waveform-Controlled Terahertz Radiation the Air Filament Few-Cycle Laser Pulses Optics
2012/4/20
Waveform-controlled Terahertz (THz) radiation is of great importance due to its potential application in THz sensing and coherent control of quantum systems. We demonstrated a novel scheme to generate...
Prospects of coherent control in turbid media: Bounds on focusing broadband laser pulses
Prospects coherent control turbid media broadband laser pulses
2011/8/11
Abstract: We study the prospects of controlling transmission of broadband and bi-chromatic laser pulses through turbid samples. The ability to focus transmitted broadband light is limited via both the...
Theory for absorption of ultrashort laser pulses by spheroidal metallic nanoparticles
absorption ultrashort laser pulses spheroidal metallic
2011/8/18
Abstract: The theory for the electric and magnetic fields energy absorption by small metallic particles subjected to the irradiation by ultrashort laser pulses of different duration in the region of s...
Dopant induced ignition of helium nanodroplets in intense few-cycle laser pulses
Dopant helium nanodroplets intense few-cycle laser pulses rare-gas
2011/8/11
Abstract: We demonstrate ultrafast resonant energy absorption of rare-gas doped He nanodroplets from intense few-cycle (~10 fs) laser pulses. We find that less than 10 dopant atoms "ignite" the drople...
Ultra-strong laser pulses: streak-camera for gamma-rays via pair production and quantum radiative reaction
gamma-rays zeptosecond pulses strong laser field electron-positron pair production radiation reaction
2011/8/5
Abstract: We show that a strong laser pulse combined with a strong x-ray pulse can be employed in a detection scheme for characterizing high-energy $\gamma$-ray pulses down to the zeptosecond timescal...
Numerical simulation of copper ablation by ultrashort laser pulses
Numerical simulation copper ablation ultrashort laser pulses
2011/8/5
Abstract: Using a modified self-consistent one-dimensional hydrodynamic lagrangian fluid code, laser ablation of solid copper by ultrashort laser pulses in vacuum was simulated to study fundamental me...
Modifying molecule-surface scattering by ultrashort laser pulses
Modifying molecule-surface ultrashort laser pulses Quantum Physics
2011/8/2
Abstract: In recent years it became possible to align molecules in free space using ultrashort laser pulses. Here we explore two schemes for controlling molecule-surface scattering process, which are ...
Thermal processes generated in quark-gluon plasma by yoctosecond laser pulses
QGP thermal waves yoctosecond pulses
2011/8/2
Abstract: In this paper the thermal processes generated by yoctosecond (10-24 s) laser pulses in QGP are investigated. Considering that the relaxation time in QGP is of the order of 1 ys it is shown t...
On the interaction of the ultrashort laser pulses with human brain matter
Modified Schr鰀inger Equation, Planck particles, neurons
2011/9/7
In this paper the modified Schrodinger equation for attosecond laser pulses interaction with 揳toms?of human brain . i.e. neurons is developed and solved. Considering that the mass of the human ...
Determination of Carrier-Envelope Phase of Relativistic Few-Cycle Laser Pulses by Thomson Backscattering Spectroscopy
Carrier-Envelope Phase ew-Cycle Laser Pulses Thomson Backscattering Spectroscopy
2011/9/2
A novel method is proposed to determine the carrier-envelope phase (CEP) of a relativistic few-cycle laser pulse via the central frequency of the isolated light generated from Thomson backscattering (...
Quasimonoenergetic and low emittance ion bunch generation from ultrathin targets by counterpropagating laser pulses of ultrarelativistic intensities
Quasimonoenergetic counterpropagating low emittance ion bunch
2011/9/1
A new method for generation of quasimonoenergetic and low emittance fast ion/nuclei bunches of solid densities from nanotargets by two counterpropagating laser pulses of ultrarelativistic intensities ...
Strong field effects in laser pulses: the Wigner formalism
Strong field effects laser pulses
2010/12/24
We investigate strong field vacuum effects using a phase space approach based on the Wigner formalism. We calculate the Wigner function in a strong null-field background exactly, using lightfront fiel...
Nuclear coherent population transfer with x-ray laser pulses
Nuclear coherent population transfer x-ray laser pulses
2010/12/27
Coherent population transfer in a nuclear three-level system via stimulated Raman adiabatic passage is studied. To compensate for the lack of $\gamma$-ray laser sources, we envisage accelerated nucle...
Temperature-dependent chirped coherent phonon dynamics in Bi$_{2}$Te$_{3}$ using high intensity femtosecond laser pulses
Temperature-dependent chirped coherent phonon dynamics femtosecond laser pulses
2010/11/18
Degenerate pump-probe reflectivity experiments have been performed on a single crystal of
bismuth telluride (Bi2Te3) as a function of sample temperature (3K to 296K) and pump intensity
using ∼...