English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The nonlinear magneto-optic responses are investigated for gapped grapheneand doped graphene in a perpendicular magnetic field. The electronic states aredescribed by Landau levels, and the electron dynamics in an optical field isobtained by solving the density matrix in the equation of motion. In the lineardispersion approximation around the Dirac points, both linear conductivity andthird order nonlinear conductivities are numerically evaluated for infraredfrequencies. The nonlinear phenomena, including third harmonic generation, Kerreffects and two photon absorption, and four wave mixing, are studied. Alloptical conductivities show strong dependence on the magnetic field. At weakmagnetic fields, our results for doped graphene agree with those in theliterature. We also present the spectra of the conductivities of gappedgraphene. At strong magnetic fields, the third order conductivities show peakswith varying the magnetic field and the photon energy. These peaks are inducedby the resonant transitions between different Landau levels. The resonantchannels, the positions, and the divergences of peaks are analyzed. Theconductivities can be greatly modified, up to orders of magnitude. Thedependence of the conductivities on the gap parameter and the chemicalpotential is studied.

Nonlinear magneto-optic effects in doped graphene and gapped graphene: a perturbative treatment