Griffin & Szipl, P.C.
Apparatus for generating tera-Hertz wave and tuning method
There are disclosed a nonlinear optical crystal 1 which can generate a THz wave by a parametric effect; a pump light incidence apparatus 12 for allowing a pump light 2 to be incident upon the nonlinear optical crystal; and a seed light injection apparatus 14 for injecting a seed light 5 having a variable frequency in a generation direction of an idler light 3 generated by the pump light. The seed light injection apparatus 14 comprises angle dispersion compensation means 16 set so that an incidence angle θIN of the seed light upon the nonlinear optical crystal 1 substantially equals to a desired phase matching condition regardless of a wavelength.
Riken
G G G
G02F G02F G02F
inventional additional additional
Kazuhiro Hiromasa Kodo
Imai Ito Kawase