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We measured the terahertz pulse emission from a femtosecond-laser-pumped solid-state dc to ac radiation converter using a 150fs Ti:sapphire laser pulse for dense plasma diagnostics. The laser-produced ionization front was directly modulated from a periodic electrostatic field to pulsed emission. The central frequency of the emission was measured to be 0.13THz having a bandwidth of 0.1THz and a peak power of 0.2mW. This emission source is suitable for use in various novel diagnostic techniques, such as dense plasma diagnostics.

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