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Relativistic quantum theory of high harmonic generation on atoms/ions by strong laser fields
atoms/ions strong laser fields high harmonic generation
2011/9/1
High-order harmonic generation (HHG) by hydrogenlike atoms/ions in the uniform periodic electric field, formed by the two linearly polarized counterpropagating laser beams of relativistic intensities,...
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 ...
Harmonics generation and intense terahertz radiation from polar molecules at multiphoton resonant excitation in laser fields
laser fields polar molecules Harmonics generation and intense terahertz radiation
2011/9/1
The coherent radiation spectrum of two-level polar molecules with UV transition is studied at the multiphoton resonant excitation by a moderately strong laser field. The spectrum corresponding to harm...
Orbital Angular Momentum in Noncollinear Second Harmonic Generation by off-axis vortex beams
Harmonic generation and mixing Optical Vortices Orbital Angular Momentum
2011/8/31
We experimentally study the behavior of orbital angular momentum (OAM) of light in a noncollinear second harmonic generation (SHG) process. The experiment is performed by using a type I BBO crystal un...
Second harmonic generation in GaP photonic crystal waveguides
Second harmonic Nonlinear frequency phosphide photonic crystal
2011/8/26
We demonstrate enhanced second harmonic generation in a gallium phosphide photonic crystal waveguide with a measured external conversion eciency of 5107/W. Our results are promising for fr...
Higgs boson mass bounds in the presence of a very heavy fourth quark generation
Higgs boson mass bounds quark generation
2011/1/6
We study the effect of a potential fourth quark generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs...
Higgs boson mass bounds in the presence of a very heavy fourth quark generation
Higgs boson mass bounds quark generation
2011/1/6
We study the effect of a potential fourth quark generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs...
Quantum-Gravity Induced Lorentz Violation and Dynamical Mass Generation
Quantum-Gravity Induced Lorentz Violation Dynamical Mass Generation
2010/12/27
In Ref. [1] (by J. Alexandre) a minimal extension of (3+1)-dimensional Quantum Electrodynamics has been proposed, which includes Lorentz-Violation (LV) in the form of higher-(spatial)-derivative isotr...
Carrier heating and high-order harmonics generation in doped graphene by a strong ac electric field
Carrier heating high-order harmonics generation strong ac electric field
2010/11/25
The nonlinear response of electrons (holes) in doped graphene on ac pumping is concidered the-
oretically for the frequency region above the energy relaxation rate but below the momentum and
carrier...
Dynamical generation of pseudoscalar resonances
Dynamical generation pseudoscalar resonances
2011/1/7
We study the interactions between the f0(980) and a0(980) scalar resonances and the lightest pseudoscalar mesons. We first obtain the elementary interaction amplitudes, or interacting kernels, without...
Higgs boson mass bounds in the presence of a very heavy fourth quark generation
Higgs boson mass bounds fourth quark generation
2011/1/13
We study the effect of a potential fourth quark generation on the upper and lower Higgs boson
mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higg...
Dynamical generation of phase-squeezed states in a two-component Bose-Einstein condensates
Dynamical generation of phase-squeezed states two-component Bose-Einstein condensates
2010/11/22
As an “input” state of a linear (Mach-Zehnder or Ramsey) interferometer, the phase-squeezed
state proposed by Berry and Wiseman exhibits the best sensitivity approaching to the Heisenberg
limit [Phy...
Generation of correlated photon pairs in a chalcogenide As2S3 waveguide
photon chalcogenide As2S3 waveguide
2010/11/17
We demonstrate the first 1550 nm correlated photon-pair source in an integrated glass platform-a chalcogenide As2S3 waveguide. A measured pair coincidence rate of 80 per second was achieved using 57 ...
Quantum-Gravity Induced Lorentz Violation and Dynamical Mass Generation
Quantum-Gravity Lorentz Violation Dynamical Mass Generation
2010/12/21
In Ref. [1] a minimal extension of (3+1)-dimensional Quantum Electrodynamics has been proposed, which includes Lorentz-Violation (LV) in the form of higher-(spatial)-derivative isotropic terms in the ...
Ultra-bright and efficient single photon generation based on N-V centres in nanodiamonds on a solid immersion lens
photon generation N-V centres nanodiamonds
2010/11/16
Single photons are fundamental elements for quantum information technologies such as quantum cryptography, quantum information storage and optical quantum computing. Colour centres in diamond have pr...