Physics
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008njph...10g3003b&link_type=abstract
New Journal of Physics, Volume 10, Issue 7, pp. 073003 (2008).
Physics
5
Scientific paper
We present a continuous-wave dual-crystal optical parametric oscillator that generates signal waves of about 1.4 μm wavelength with a tunable difference frequency Δν between 0.64 and 5.3 THz. A model of the parametric gain in such a system indicates that the lowest reachable value for Δν depends on the refractive index dispersion of the nonlinear material used. As a proof of principle, we demonstrate the generation of terahertz radiation by photomixing the signal waves. Frequencies between 0.64 and 0.85 THz are created and detected coherently with ion-irradiated InGaAs interdigitated photomixers.
Breunig I.
Buse Karsten
Kiessling Jonas
Knabe B.
Sowade R.
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