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Terahertz radiation source and method for producing terahertz radiation

A terahertz radiation source, a technology of terahertz radiation, applied in the field of terahertz radiation sources, to achieve the effect of small interference sensitivity

Inactive Publication Date: 2011-07-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Problematic here, however, is that optical parametric oscillators are extremely sensitive to temperature fluctuations and shocks

Method used

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  • Terahertz radiation source and method for producing terahertz radiation
  • Terahertz radiation source and method for producing terahertz radiation
  • Terahertz radiation source and method for producing terahertz radiation

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Embodiment Construction

[0016] figure 1 It is shown that the terahertz radiation source according to the present invention includes a pulsed femtosecond fiber laser 1 , a pulse shaper 2 , an optical amplifier 3 and a nonlinear crystal 4 . According to the present invention, it is as figure 1 The configuration and / or arrangement shown is such that the laser pulses I, II, III, IV generated by the laser 1 first pass through the pulse former 2 , then through the optical amplifier 3 and then through the nonlinear crystal 4 .

[0017] Within the scope of the present invention, a fiber laser is understood to be a solid-state laser whose laser excitation medium forms a glass fiber doped, for example, with erbium, ytterbium and / or neodymium. Such lasers advantageously generate light of high radiant intensity and have a stable construction, high efficiency of the conversion process and good cooling through the large surface of the fiber.

[0018] Within the scope of the present invention, a femtosecond fiber...

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Abstract

The present invention relates to a terahertz radiation source comprising a pulsed femtosecond fiber laser (1), a pulse shaper (2), an optical amplifier (3) and a nonlinear crystal (4), wherein the laser (1), pulse shaper (2), optical amplifier (3) and nonlinear crystal (4) are adapted and / or disposed in such a way that a laser pulse I, II, III, IV produced by the laser (1) first passes through the pulse shaper (2), then the optical amplifier (3) and then the nonlinear crystal (4); an imaging and / or spectroscopy system; a method for generating terahertz radiation; a method for detecting and / or examining life forms, objects and materials using such a system; and use of such a source and such a system.

Description

technical field [0001] The present invention relates to a source of terahertz radiation, an imaging system and / or spectroscopy system, a method for generating terahertz radiation, a system for detecting and / or Methods of examination and use of such sources and such systems. Background technique [0002] The electromagnetic spectrum can provide information about the complex chemical composition of matter as well as about the dielectric properties of objects in the terahertz frequency range. The primary concern in this regard is the identification of explosives without direct contact. Here a terahertz radiation source is irradiated on the corresponding sample and the reflected, transmitted and scattered radiation is analyzed. [0003] A system for spectral identification of explosives can be based on a terahertz radiation source and a broadband terahertz detector, wherein the terahertz radiation source generates terahertz radiation tunable over a wide frequency range. In su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35
CPCG02F2203/13G01V8/005G01N21/3581G02F1/3534G01S13/887
Inventor M·蒂尔U·卡尔曼S·孔德曼
Owner ROBERT BOSCH GMBH
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