Measurements of Inverse Faraday Effect and Absorption of Circularly Polarized Laser Light in Plasmas

Horovitz, Y.; Eliezer, S.; Ludmirsky, A.; Henis, Z.; Moshe, E.; Shpitalnik, R.; Arad, B.

doi:10.1103/physrevlett.78.1707

Cited by 55 publications

(26 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Obviously, for the LP laser beam ͑␦ =0͒ there is no spontaneous magnetic field along the axial direction. Horovitz et al [16] and Najmudin et al [17] have measured the axial magnetic field b z for the intense CP lasers. They found that, in underdense helium plasma the maximum strength of the magnetic field is of the order 10 kG for the laser intensity 10 13 -10 14 W/cm 2 , and of the order 7 MG for the laser intensity 10 19 W/cm 2 , respectively.…”

Section: ͑4͒mentioning

confidence: 99%

Resonance acceleration of electrons in combined strong magnetic fields and intense laser fields

Liu

Chen

2004

Phys. Rev. E

View full text Add to dashboard Cite

The acceleration mechanism of electrons in combined strong axial magnetic fields and circularly polarized laser pulse fields is investigated by solving the dynamical equations for relativistic electrons both numerically and analytically. We find that the electron acceleration depends not only on the laser intensity, but also on the ratio between electron Larmor frequency and laser frequency. As the ratio approaches unity, a clear resonance peak is observed, corresponding to the laser-magnetic resonance acceleration. Away from the resonance regime, the strong magnetic fields still affect the electron acceleration dramatically. We derive an approximate analytical solution of the relativistic electron energy in adiabatic limit, which provides a full understanding of this phenomenon. Application of our theory to fast ignition of inertial confinement fusion is discussed.

show abstract

Section: ͑4͒mentioning

confidence: 99%

Resonance acceleration of electrons in combined strong magnetic fields and intense laser fields

Liu

Chen

2004

Phys. Rev. E

View full text Add to dashboard Cite

show abstract

“…IFE has since been measured in several experiments. [27][28][29] In this paper, electron acceleration by a circularly polarized laser pulse in the presence of an axial magnetic field in a plasma has been studied. The values of magnetic field at which resonance occurs have been found for different laser intensities, initial electron energy, and plasma density.…”

Section: Introductionmentioning

confidence: 99%

Electron acceleration by a circularly polarized laser pulse in a plasma

Singh

2004

Physics of Plasmas

View full text Add to dashboard Cite

Results of a relativistic three-dimensional single particle code, on direct laser acceleration of electrons in an axial static field are presented. The electron rotates around the propagation direction of the laser pulse during the interaction with circularly polarized intense laser pulse. Betatron resonance occurs between the electrons and electric field of the laser pulse for two optimum values of the magnetic fields, and the electrons gain much higher energies. The resonance is stronger at higher values of the magnetic field. The values of magnetic fields at which resonance occurs depend upon the laser intensity and plasma density, and initial electron energy. At higher plasma density, the group velocity of the laser pulse is too slow to catch up with the accelerated electrons, reducing the duration of interaction and diminishing energy gain. The electrons with less initial energy find more time to interact with the laser pulse and gain more energy than the electrons with more initial energy. Electron trajectory and energy for different parameters have been obtained.

show abstract

“…Consequently one may expect that a far stronger inverse Faraday effect is feasible with such pulses. Indeed, recent experimental studies of the inverse Faraday effect in plasmas reported that circularly polarized light is able to create an axial magnetic field of tens of kilogauss [32].…”

Section: Measurements Of the Inverse Faraday Effect At Femtosecond Timentioning

confidence: 99%

Femtosecond opto‐magnetism: ultrafast laser manipulation of magnetic materials

Kimel¹,

Kirilyuk

Rasing

2007

Laser & Photonics Reviews

122

View full text Add to dashboard Cite

This review summarizes the recent progress in the study of ultrafast nonthermal effects of light on magnetic materials. It is demonstrated that due to opto-magnetic phenomena an intense 100 fs circularly polarized laser pulse acts on the spins similar to an equivalently short effective magnetic field pulse up to 1 T. The review shows that using such opto-magnetic phenomena one may selectively excite different modes of magnetic resonance, realize quantum control of magnons, trigger magnetic phase transitions and switch spins on a subpicosecond time-scale. All these findings open new insights into the understanding of ultrafast magnetic excitation and, considering recent progress in the development of compact ultrafast lasers, may provide new prospects for applications of ultrafast opto-magnetic phenomena in magnetic storage and information processing technology.All optical magnetic recording with 40 fs circularly polarized laser pulses. This was achieved by scanning a circularly polarized laser beam across the sample and simultaneously modulating the polarization of the beam between left-and right circular.

show abstract

Measurements of Inverse Faraday Effect and Absorption of Circularly Polarized Laser Light in Plasmas

Cited by 55 publications

References 14 publications

Resonance acceleration of electrons in combined strong magnetic fields and intense laser fields

Resonance acceleration of electrons in combined strong magnetic fields and intense laser fields

Electron acceleration by a circularly polarized laser pulse in a plasma

Femtosecond opto‐magnetism: ultrafast laser manipulation of magnetic materials

Contact Info

Product

Resources

About