Terahertz parameter source based on potassium titanyl phosphate crystal and application thereof

A potassium titanyl phosphate and terahertz technology, which is applied in the field of terahertz parameter sources, can solve problems such as the absence of terahertz parameter sources, and achieve the effects of high nonlinear gain and high damage threshold of crystals

Active Publication Date: 2014-05-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lowest A1 symmetric vibration mode of potassium titanyl phosphate crystal is 268.5cm -1 , the vibration mode has both infrared and Raman activity, and a tunable terahertz radiation source in the frequency range of 3.17THz to 6.13THz can be obtained by angle tuning, extending the LiNbO-based 3 The terahertz frequency range of the terahertz parametric source of the crystal, so far no terahertz parametric source realized by the crystal has been found

Method used

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  • Terahertz parameter source based on potassium titanyl phosphate crystal and application thereof
  • Terahertz parameter source based on potassium titanyl phosphate crystal and application thereof
  • Terahertz parameter source based on potassium titanyl phosphate crystal and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A terahertz parameter source based on potassium titanyl phosphate crystal, including a laser pumping system, a terahertz parameter device, and a cooling system; the terahertz parameter device includes potassium titanyl phosphate crystal, and the laser pumping system emits pumps The laser is irradiated along the terahertz parametric device, and the exciton scattering process of the potassium titanyl phosphate crystal constitutes the terahertz parametric source.

[0037] The output frequency range of the terahertz wave of the terahertz parameter source is 3.17-6.13 THz.

[0038] The terahertz parametric device also includes a back cavity mirror of the terahertz parametric device, an output mirror of the terahertz parametric device, and the laser pumping system emits a laser along the back cavity mirror of the terahertz parametric device, a potassium titanyl phosphate crystal, and The output mirrors of the terahertz parametric device are emitted in sequence.

[0039] The potassi...

Embodiment 2

[0054] Such as Figure 5 Shown.

[0055] A terahertz parameter source based on potassium titanyl phosphate crystal, including a laser pumping system, a terahertz parameter device, and a cooling system; the terahertz parameter device includes potassium titanyl phosphate crystal, and the laser pumping system emits pumps The laser is irradiated along the terahertz parametric device, and the exciton scattering process of the potassium titanyl phosphate crystal constitutes the terahertz parametric source.

[0056] The output frequency range of the terahertz wave of the terahertz parameter source is 3.17-6.13 THz.

[0057] The terahertz parametric device also includes a back cavity mirror of the terahertz parametric device, an output mirror of the terahertz parametric device, and the laser pumping system emits a laser along the back cavity mirror of the terahertz parametric device, a potassium titanyl phosphate crystal, and The output mirrors of the terahertz parametric device are emitted...

Embodiment 3

[0073] Such as Image 6 As shown, the terahertz parameter source based on potassium titanyl phosphate crystal as described in embodiment 1, wherein the terahertz parameter device consists of the back cavity mirror 4 of the terahertz parameter device, the output mirror 6 of the terahertz parameter device, and the angle Rotating table 7 and terahertz coupling part 8 consist of silicon prism array and nonlinear crystal potassium titanyl phosphate 5, which has no gap contact with the zox surface of the terahertz silicon prism coupling part 8, terahertz parametric device The rear cavity mirror 4, the nonlinear crystal potassium titanyl phosphate 5, the output mirror 6 of the terahertz parametric device and the terahertz silicon prism coupling part 8 are fixed together on the angle rotating table 7; the pump laser system resonant cavity rear cavity mirror 12 , The pump laser system resonator output mirror 17 constitutes the pump laser resonator. The placement of the pump laser resonat...

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Abstract

A terahertz parameter source based on a potassium titanyl phosphate crystal comprises a laser pumping system, a terahertz parametric device and a cooling system. The terahertz parametric device comprises the potassium titanyl phosphate crystal, pumping lasers emitted by the laser pumping system irradiate along the terahertz parametric device, and a terahertz parametric source is formed by a stimulated exciton scattering process of the potassium titanyl phosphate crystal. The output frequency range of terahertz waves is 3.17-6.13THz. The terahertz parametric device further comprises a rear cavity mirror and an output mirror, and the lasers emitted by the laser pumping system are emitted out through the rear cavity mirror, the potassium titanyl phosphate crystal and the output mirror in sequence. According to the terahertz parameter source based on the potassium titanyl phosphate crystal, the nonlinear crystal of potassium titanyl phosphate crystal is used, the crystal is high in nonlinear gain and high in damage threshold, and tunable terahertz radiation waves within the frequency range of 3.17THz to 6.13THz can be obtained through an angle tuning mode.

Description

Technical field [0001] The invention relates to a terahertz parameter source based on potassium titanyl phosphate crystals and an application thereof, and belongs to the technical field of terahertz parameter sources. Background technique [0002] Exciton scattering is an important technology to generate terahertz radiation. Through exciton scattering of certain crystals, tunable lasers in the visible, near-infrared, and terahertz bands can be obtained. Compared with other technology terahertz sources, such as optical rectification, quantum cascade lasers, and electrical terahertz sources, this exciton scattering-based terahertz parametric source has the advantages of encapsulation and integration, room temperature operation, convenient use, Advantages such as easy tuning and narrow line width. The terahertz parameter source has always been one of the research hotspots in the field of terahertz generation. There have been a large number of reports on terahertz parameter sources...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B7/22
Inventor 张行愚王伟涛丛振华王青圃秦增光刘兆军陈晓寒唐关琦
Owner SHANDONG UNIV
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