Terahertz parameter source and application thereof on the basis of potassium titanium oxide arsenate crystals
A technology of potassium titanyl arsenate and terahertz, which is applied in the field of terahertz parametric sources, can solve the problem of not finding terahertz parametric sources, etc., and achieve the effect of high nonlinear gain and high damage threshold of crystals
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Embodiment 1
[0033] A terahertz parameter source based on potassium titanyl arsenate crystal, including a laser pumping system, a terahertz parameter device and a cooling system; the terahertz parameter device includes a potassium titanyl arsenate crystal, and the laser pumping system emits The pump laser is irradiated along the terahertz parametric device, and the terahertz parametric source is formed by the excited exciton scattering process of the potassium titanyl arsenate crystal.
[0034] The terahertz wave output frequency range of the terahertz parameter source is 3.5-6.5THz.
[0035] The terahertz parametric device also includes a rear cavity mirror of the terahertz parametric device and an output mirror of the terahertz parametric device. and the output mirror of the terahertz parametric device are emitted sequentially.
[0036]The potassium titanyl arsenate crystal is nonlinear crystal potassium titanyl arsenate. The laser beam generated by the laser pumping system passes thro...
Embodiment 2
[0051] Such as Figure 4 shown.
[0052] A terahertz parameter source based on potassium titanyl arsenate crystal, including a laser pumping system, a terahertz parameter device and a cooling system; the terahertz parameter device includes a potassium titanyl arsenate crystal, and the laser pumping system emits The pump laser is irradiated along the terahertz parametric device, and the terahertz parametric source is formed by the excited exciton scattering process of the potassium titanyl arsenate crystal.
[0053] The terahertz wave output frequency range of the terahertz parameter source is 3.5-6.5THz.
[0054] The terahertz parametric device also includes a rear cavity mirror of the terahertz parametric device and an output mirror of the terahertz parametric device. and the output mirror of the terahertz parametric device are emitted sequentially. The potassium titanyl arsenate crystal is nonlinear crystal potassium titanyl arsenate.
[0055] The cutting direction of th...
Embodiment 3
[0070] Such as Image 6 As shown, a terahertz parametric source based on potassium titanyl arsenate crystal as described in Example 1, wherein the terahertz parametric device consists of the rear cavity mirror 4 of the terahertz parametric device, the output mirror 6 of the terahertz parametric device, Angle rotation stage 7, terahertz coupling component 8 silicon prism array and nonlinear crystal potassium titanyl arsenate 5, the nonlinear crystal potassium titanyl arsenate 5 is in contact with the zox surface of the terahertz silicon prism coupling component 8 without a gap, too The rear cavity mirror 4 of the Hertz parametric device, the nonlinear crystal potassium titanyl arsenate 5, the output mirror 6 of the terahertz parametric device and the terahertz silicon prism coupling part 8 are fixed on the angle rotation stage 7 together; the resonant cavity of the pump laser system The rear cavity mirror 12 and the pump laser system resonator output mirror 17 form the pump las...
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