Laser even harmonics generation by a plasma embedded in a static electric field

Ferrante, G.; Zarcone, M.; Uryupin, S. A.

doi:10.1002/lapl.200310044

Cited by 9 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This property of the even harmonics has been previously noted in a theoretical study of laser even harmonics generation by a plasma embedded in a static electric field [10].…”

Section: Resultsmentioning

confidence: 78%

Generation of even harmonics of sub-THz radiation in bulk GaAs in the presence of a static electric field

2007

View full text Add to dashboard Cite

The static electric field effects on nonlinear carrier dynamics in low-doped GaAs bulk under the influence of an intense sub-terahertz field are studied by a three-dimensional multivalleys Monte Carlo simulation. The conversion efficiency is calculated by using the appropriate Maxwell equation for the propagation of an electromagnetic wave along a given direction in the medium. Production of odd and even harmonics due to the nonlinearity of the velocity-field relation is investigated.

show abstract

“…This property of the even harmonics has been previously noted in a theoretical study of laser even harmonics generation by a plasma embedded in a static electric field [10].…”

Section: Resultsmentioning

confidence: 78%

Generation of even harmonics of sub-THz radiation in bulk GaAs in the presence of a static electric field

2007

View full text Add to dashboard Cite

show abstract

“…For V E greater than V T (t) by a factor larger than 4 the same initial EDF first becomes elongated in the perpendicular direction to that of the laser polarization, and afterwards evolves as in the case V E /V T (t) > 2÷4. In both cases, far from the critical transition values of V E /V T (t), the field modified EDF may profitably be approximated by an EDF with a maxwellian shape and two different temperatures, perpendicular and parallel to the laser electric field (anisotropic bi-maxwellian EDF) [15][16][17][18]. 4).…”

Section: Account Of the Plasma Influencementioning

confidence: 99%

Influence of a plasma medium on laser assisted radiative recombination

et al. 2004

View full text Add to dashboard Cite

The problem of laser assisted radiation recombination, taking into account the influence of the plasma in which the elementary process takes place, is investigated theoretically. Among the reported results, remarkable broadening and enhancement of the X-ray photon emission spectrum is found, provided some conditions are met. First, a sufficiently intense laser field must assist the process. For enhancement, the intensity must be such that the amplitude of the quiver electron velocity be comparable or slightly larger than the electron thermal velocity. For broadening it is important that at the level of the elementary act of recombination several multiphoton channels be open. A judicious compromise between the plasma temperature and the field intensity is necessary to have many effective slow electrons able to absorb large numbers of photons from the assisting laser field to be converted into X-ray photons. Emitted power spectra per steradian and frequency unit of the emitted photon J(ω x ) in a.u. as a function ω x for a Maxwellian EDF, ion charge Z=3, ω L =0.057 a.u., laser intensity I L = 6×10 15 W/cm 2 , different values of plasma temperature: dotted line T =1a.u. and R=7.3; thick line T=1,5 a.u. and R=5.9; thin line T= 2 a.u. and R=5.1

show abstract

“…The generation of second harmonic radiation by the propagation of linearly polarized laser beams in magnetized plasma has been reported [13]. Ferrante et al [14] have theoretically shown the generation of even harmonics of a laser propagating in plasma embedded in a static electric field. In addition, Jha et al have recently reported harmonic generation by oblique incidence of linearly, as well as circularly, polarized laser beams in plasma [15,16].…”

Section: Introductionmentioning

confidence: 99%

Phase-matched harmonic generation by two-colour laser beams propagating in plasma

Agrawal¹,

Jha²

2018

Laser Phys. Lett.

View full text Add to dashboard Cite

An analytical theory is developed for the generation of phase-matched third harmonic radiation by bichromatic laser beams obliquely incident on a vacuum–plasma interface. A new perspective on the phase-matching condition between the bichromatic laser pump and harmonic fields has been presented. It is shown that phase matching can be achieved by varying the relative angle of incidence of the two laser beams. Phase-matched harmonic radiation generated by two-colour beams with linear, circular and elliptic polarization have been investigated and compared.

show abstract

Laser even harmonics generation by a plasma embedded in a static electric field

Cited by 9 publications

References 8 publications

Generation of even harmonics of sub-THz radiation in bulk GaAs in the presence of a static electric field

Generation of even harmonics of sub-THz radiation in bulk GaAs in the presence of a static electric field

Influence of a plasma medium on laser assisted radiative recombination

Phase-matched harmonic generation by two-colour laser beams propagating in plasma

Contact Info

Product

Resources

About