Development of an ultra-widely tunable DFG-THz source with switching between organic nonlinear crystals pumped with a dual-wavelength BBO optical parametric oscillator

• DOI: 10.1364/oe.20.025850
• Publication Date: 2012-11-01T15:02:53Z
• Authors: Takashi Notake; Kouji Nawata; Hiroshi Kawamata; Takeshi Matsukawa; Feng Qi; Hiroaki Minamide
• Keywords: Crystal (programming language); Optical parametric amplifier

We developed a difference frequency generation (DFG) source with an organic nonlinear optical crystal of DAST or BNA selectively excited by dual-wavelength β-BaB(2)O(4) parametric oscillator (BBO-OPO). The BBO-OPO can independently oscillate two lights different wavelengths from 800 to 1800 nm in cavity. THz-wave using each covers ultrawide range 1 30 THz inherent intensity dips absorption modes. reduced outputs be improved switching over the crystals adequately tuned pump BBO-OPO.