US 2011/0032599 A1Published application

Electromagnetic wave oscillating devices

AssigneeNGK Insulators, Ltd.

InventorsJungo KONDO, Kenji AOKI, Yuichi IWATA, Tetsuya EJIRI

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Abstract

It is provided a device of oscillating an electromagnetic wave having a frequency of 0.1 THz to 3 THz from pump and idler waves 3, 4 by parametric effect. The device includes a supporting body 13, an oscillating substrate 11 made of a non-linear optical crystal, and an adhesive layer 12 adhering the supporting body and oscillating substrate. The oscillating substrate 11 includes an upper face 11a, a bottom face 11f and an incident face 11c on which the pump wave 3 is made incident. The oscillating substrate 11 provides cut-off with respect to the electromagnetic wave 7 oscillated by parametric effect when the pump and idler waves 3, 4 propagate in parallel with the bottom face 11f.

Claims5

Dependent claims

A device of oscillating an electromagnetic wave having a frequency of 0.1 THz to 3 THz from pump and idler waves by parametric effect, the device comprising:

a supporting body:
an oscillating substrate comprising a z-plate of a non-linear optical crystal, said oscillating substrate comprising an upper face, a bottom face and an incident face on which said pump wave is made incident;
and
an adhesive layer adhering said supporting body and said oscillating substrate,
wherein said adhesive layer has a refractive index with respect to said pump wave lower than that of said oscillating substrate;
and
wherein said oscillating substrate provides cut-off with respect to said electromagnetic wave oscillated by parametric effect when said pump and idler waves propagate in parallel with said bottom face.

4 more elements

Dependencies are inferred from the claim text.