High average power THz-radiation from femtosecond optical-pulse irradiated semiconductors under the magnetic field

In this paper, THz-radiation power from semiconductors irradiated with a femtosecond-optical pulse is significantly enhanced and reaches up to 110 /spl mu/W under 1.7 T magnetic field; we also found a dramatic change of ellipticity. A mode-locked Ti:sapphire laser delivered 100-fsec pulses at 760 nm for the excitation.