Journal Article

FZJ-2015-04834

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tunable Circularly Polarized Terahertz Radiation from Magnetized Gas Plasma

Wang, W.-M. (Corresponding author)FZJ* ; Gibbon, P.FZJ* ; Sheng, Z.-M. ; Li, Y.-T.

2015
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/8960  doi:10.1103/PhysRevLett.114.253901

Abstract: It is shown, by simulation and theory, that circularly orelliptically polarized terahertz radiation can be generated when astatic magnetic (B) field is imposed on a gas target along thepropagation direction of a two-color laser driver. The radiationfrequency is determined by $\sqrt{\omega_p^2+{\omega_c^2}/{4}} +{\omega_c}/{2}$, where $\omega_p$ is the plasma frequency and$\omega_c$ is the electron cyclotron frequency. With the increase ofthe B field, the radiation changes from a single-cycle broadbandwaveform to a continuous narrow-band emission. In high-B-fieldcases, the radiation strength is proportional to$\omega_p^2/\omega_c$. The B field provides a tunability in theradiation frequency, spectrum width, and field strength.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2015

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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