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THz pulse emission from GaAs and GaAs-MnAs nanowire (NW) samples illuminated by femtosecond laser pulses has been studied. The amplitude of THz pulses emitted by nanowire samples was more than twice larger than that radiated from GaAs substrate. It was found that terahertz emissivity of NW samples rapidly decreases with increasing laser photon energy - behavior that could be explained by localized...
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