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    • 4. 发明授权
    • Miniaturized terahertz radiation source
    • 微型太赫兹辐射源
    • US06909104B1
    • 2005-06-21
    • US09980250
    • 2000-05-10
    • Hans W. P. KoopsTobias BauerWolfgang ElsässerFilip FloreaniHartmut Roskos
    • Hans W. P. KoopsTobias BauerWolfgang ElsässerFilip FloreaniHartmut Roskos
    • H01J1/304H01J3/02H01J25/00H01S3/09H01S3/30G02F1/31
    • H01S3/0903H01J3/021H01J25/00
    • A miniaturized terahertz radiation source based on the Smith-Purcell effect is provided, in which, from a focused electron source, a high-energy bundle of electrons is transmitted at a defined distance over a reflection diffraction grating composed of transversely disposed grating rods, so that, in response to oscillating image charges, electromagnetic waves of one wavelength are emitted, the wavelength being adjustable as a function of the periodicity of the lines and of the electron velocity. The elements of the radiation source, such as field emitter (1), electrostatic lens (4), beam deflector (5), grating (7) of metal, and a second anode (8), are integrated on a semiconductor chip using additive nanolithographic methods. The field electron source is constructed to project, as a wire, out of the surface, using additive nanolithography, and is made of readily conductive material having stabilizing series resistance. The wire is constructed, using computer-controlled deposition lithography, in a straight or curved, free-standing design. In its surface area, the base material bears a conductor structure for the electrical terminals and connections (2), including controllable voltage sources (3) for supplying the field emitter tips (1), lens (4), and control electrodes (5, 8). The terahertz radiation source is designed to be a powerful component that is available in modular form and is usable in any spatial situation.
    • 提供了一种基于Smith-Purcell效应的小型化太赫兹辐射源,其中从聚焦电子源,高能束电子以规定的距离传播到由横向布置的栅棒组成的反射衍射光栅上,因此 响应于振荡图像电荷,发射一个波长的电磁波,该波长作为线的周期性和电子速度的函数可调。 辐射源的元件,例如场致发射体(1),静电透镜(4),光束偏转器(5),金属光栅(7)和第二阳极(8) 纳米光刻方法。 场电子源被构造为使用添加剂纳米光刻技术作为导线从表面突出,并且由具有稳定串联电阻的易导电材料制成。 导线采用计算机控制的沉积光刻法,以直的或弯曲的,独立的设计构造。 在其表面积中,基体材料具有用于电端子和连接(2)的导体结构,包括用于提供场发射器尖端(1),透镜(4)和控制电极(5)的可控电压源(3) 8)。 太赫兹辐射源被设计成一个强大的组件,可以模块化的形式提供,并且可以在任何空间情况下使用。