Journal ArticleDOI
Review of multiphoton absorption in crystalline solids
TLDR
In this article, an extensive review of theoretical and experimental investigations conducted over the last two decades since the advent of the laser and relating to the simultaneous absorption of one or more photons by the valence electrons of a crystalline solid is given.Abstract:
An extensive review of theoretical and experimental investigations conducted over the last two decades since the advent of the laser and relating to the simultaneous absorption of one or more photons by the valence electrons of a crystalline solid is given. The following topics are addressed, with greatest emphasis on the most recent results: the pioneering models of Braunstein and Ockman and that of Basov for two-photon absorption in direct-gap crystals, based on second-order time-dependent perturbation theory and parabolic and isotropic energy bands; extensions and modifications of the above models by various authors to take into account the effects of excitons, crystal anisotropy, laser polarization, and nonparabolicity as well as degeneracy of the electronic energy bands; rigorous band-structure calculations that employ realistic energy bands and momentum matrix elements that include many intermediate states to obtain good convergence in the perturbation calculation; the semiclassical theory of Keldysh that takes into account electric-field effects on the electronic energies and wave functions and that employs first-order perturbation theory to obtain multiphoton transitions of all orders; the fully quantized treatment of the multiphoton absorption (MPA) process along the above lines by Kovarskii and Perlin; the Volkov approximation method of Jones and Reiss; descriptions of the various experimental techniques that are usually employed to study nonlinear phenomena in solids; critical comparison between different theoretical predictions and experimental data; and finally, theoretical and experimental work relating to phonon-assisted two-photon transitions, three-photon absorption, four-photon absorption, and higher-order MPA processes in crystalline solids.read more
Citations
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Journal ArticleDOI
Femtosecond filamentation in transparent media
Arnaud Couairon,André Mysyrowicz +1 more
TL;DR: In this paper, the main aspects of ultrashort laser pulse filamentation in various transparent media such as air (gases), transparent solids and liquids are introduced and discussed.
Journal ArticleDOI
Filamentation and damage in fused silica induced by tightly focused femtosecond laser pulses
TL;DR: In this paper, the authors investigated the damage tracks induced by tightly focused infrared femtosecond laser pulses in the bulk of a fused silica sample and observed two types of irreversible damage.
Journal ArticleDOI
Design of high-energy terahertz sources based on optical rectification
TL;DR: It is shown that imaging errors in a pulse-front-tilting setup consisting of a grating and a lens can lead to a THz beam with strongly asymmetric intensity profile and strong divergence, thereby limiting applications and optimized setup parameters are given to reduce such distortions.
Journal ArticleDOI
Wavelength Dependence of Laser-Induced Damage: Determining the Damage Initiation Mechanisms
TL;DR: In this article, the damage threshold of deuterated potassium dihydrogen phosphate (DKDP) from the near ultraviolet into the visible was measured using an OPO (optical parametric oscillator) laser.
Journal ArticleDOI
Giant Two-Photon Absorption in Bilayer Graphene
TL;DR: The theory shows that 2PA is significantly greater in bilayer graphene than monolayer graphene in the visible and infrared spectrum (up to 3 μm) with a resonant 2PA coefficient of up to ∼0.2 cm/W.
References
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Journal ArticleDOI
Band structure of indium antimonide
TL;DR: The band structure of InSb is calculated using the k ·. p perturbation approach and assuming that the conduction and valence band extrema are at k = 0 as mentioned in this paper.
Journal ArticleDOI
Band Structures and Pseudopotential Form Factors for Fourteen Semiconductors of the Diamond and Zinc-blende Structures
TL;DR: Pseudopotential form factors and band structures for 14 semiconductors of the diamond and zinc-blende structures were determined for 14 crystal types in this article, where the splitting of energy levels in the crystal were used.
Journal ArticleDOI
Acceleration of Electrons in a Crystal Lattice
TL;DR: In this paper, it was shown that the wave vector increases linearly with the time within the bounds of a single Brillouin zone, and at the boundaries of the zones transitions to other zones may take place if the accelerating field is large enough.
Journal ArticleDOI
Two-photon absorption in semiconductors with picosecond laser pulses
J. H. Bechtel,W. L. Smith +1 more
TL;DR: In this article, single pulses from a well-calibrated mode-locked YAlG:Nd laser have been used to measure the two-photon absorption coefficient at 1.064 µm in several semiconductors.
Journal ArticleDOI
Optical Double-Photon Absorption in CdS
R. Braunstein,N. Ockman +1 more
TL;DR: In this article, the two-photon excitation of an electron from the valence to the conduction band in CdS was observed as a function of laser intensity and compared to the emission excited by single-quanta absorption for photons of the same type.