Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2177540
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We report on the generation of broadband terahertz (THz) pulses using Cherenkov-type generation in magnesium oxide-doped lithium niobate (MgO:LN). The efficiency of the output coupling process of THz radiation at higher frequencies into free space is considerably increased by the use of a properly cut silicon prism. The achieved spectrum is broader compared to the normal Cherenkov-cut geometry. Due to a considerably reduced propagation length in the absorbing MgO:LN, the effective application of longer crystals is possible. Thus, the measured spectral intensity is much higher and the spectrum broader.
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