J. Darmo, T. Muller, G. Strasser, K. Unterrainer, T. Le, A. Stingl
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Voltage-controlled intracavity THz generator for self-starting Ti:sapphire lasers
A new scheme for the intracavity generation of terahertz radiation in femtosecond mode-locked Ti:sapphire lasers is presented. The scheme combines advantages of a fast saturable semiconductor Bragg mirror with that of a photoconductive THz emitter. It significantly increases the efficiency of the intracavity THz generation. In addition, the output THz radiation can be electrically modulated at frequencies up to 100 kHz.