• Corpus ID: 119229568

Theory for the electron excitation in dielectrics under an intense circularly polarized laser field

@article{Otobe2016TheoryFT,
  title={Theory for the electron excitation in dielectrics under an intense circularly polarized laser field},
  author={Tomohito Otobe and Yasushi Shinohara and Shunsuke A. Sato and Kazuhiro Yabana},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2016}
}
We report a Keldysh-like model for the electron transition rate in dielectrics under an intense circularly polarized laser. We assume a parabolic two-band system and the Houston function as the time-dependent wave function of the valence and conduction bands. Our formula reproduces the experimental result for the ratio of the excitation rate between linear and circular polarizations for $\alpha$-quartz. This formula can be easily introduced into simulations of nanofabrication using an intense… 

References

SHOWING 1-10 OF 21 REFERENCES

Time-dependent density functional theory for strong electromagnetic fields in crystalline solids

We apply the coupled dynamics of time-dependent density functional theory and Maxwell equations to the interaction of intense laser pulses with crystalline silicon. As a function of electromagnetic

IONIZATION OF ATOMS IN AN ALTERNATING ELECTRIC FIELD

We develop further the quasiclassical approximation in the problem of the penetration of the particle through a time-varying potential barrier. We consider with the aid of this method the influence

Acceleration of Electrons in a Crystal Lattice

The motion of an electron in a periodic potential field, and accelerated by a uniform field, can be obtained by treating the time-dependent Schroedinger equation. The result shows that the wave

Ultrafast laser waveguide writing: Lithium niobate and the role of circular polarization and picosecond pulse width.

TLDR
Among a seven-dimensional parameter space for waveguide optimization, two frequently overlooked parameters, pulse duration and polarization, were found to be key in overcoming undesired nonlinear optical responses imposed by lithium niobate.

Photoionization rate in wide band-gap crystals

The Keldysh model of the photoionization L. V. Keldysh, Sov. Phys. JETP 20, 1307 1965 is extended by deriving a formula for the photoionization rate of crystals based on the cosine energy-momentum

SECOND HARMONIC LIGHT GENERATION IN CRYSTALS WITH NATURAL OPTICAL ACTIVITY.

Abstract : Whenever a circularly polarized laser beam propagates along an axis of three-fold symmetry in a piezoelectric crystal, the second harmonic polarization is circularly polarized in the

Optically produced arrays of planar nanostructures inside fused silica.

TLDR
How local field enhancement influences dielectric ionization is discussed, how this leads to nanoplane growth, why the planes are arrayed, and how long-range order is maintained are described.

Direct extraction of the electron tunneling effective mass in ultrathin SiO2

Electron transport in ultrathin (tox<40 A) Al/SiO2/n−Si structures is dominated by direct tunneling of electrons across the SiO2 barrier. By analyzing the tunneling currents as a function of the SiO2

Femtosecond laser micromachining in transparent materials

Interactions between laser and matter are fascinating and have found a wide range of applications. This article gives an overview of the fundamental physical mechanisms in the processing of