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Actively stabilized synchronously pumped enhancement cavity for THz generation

: Molter, D.; Theuer, M.; Torosyan, G.; Beigang, R.; Maki, K.; Otani, C.

Institute of Electrical and Electronics Engineers -IEEE-:
IRMMW-THz 2007, Joint 32nd International Conference on Infrared and Millimeter Waves, and 15th International Conference on Terahertz Electronics. Vol.1 : City Hall, Cardiff, UK, 3rd - 7rd September, 2007
New York, NY: IEEE, 2007
ISBN: 1-4244-1438-5
ISBN: 978-1-4244-1438-3
International Conference on Infrared and Millimetre Waves <32, 2007, Cardiff>
International Conference on Terahertz Electronics <15, 2007, Cardiff>
Conference Paper
Fraunhofer IPM ()

We report on an actively controlled enhancement cavity for terahertz generation using optical rectification in lithium niobate. By recycling the transmitted fundamental laser power from a Ti:Sapphire laser an increased pump power is available for the nonlinear process. Therefore a much higher THz signal is obtained in relation to single-pass geometry. Terahertz intensities generated by different emitters are compared with Cherenkov-type generation in the enhancement cavity.