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    • 1. 发明授权
    • Detector of electromagnetic waves having five different forbidden gap
widths
    • 具有五个不同宽度宽度的电磁波探测器
    • US5077466A
    • 1991-12-31
    • US544895
    • 1990-06-28
    • Dominique DelacourtMichel PapuchonJean-Paul Pocholle
    • Dominique DelacourtMichel PapuchonJean-Paul Pocholle
    • H01L29/205H01L31/0352
    • B82Y20/00H01L29/205H01L31/0352H01L31/035236
    • A quantum well electromagnetic wave detector disclosed having a semiconductor structure including a stacking of layers of material wherein the widths of the forbidden gaps of the materials are used to obtain a profile of potential energy corresponding to the bottom of the conduction band for the electrons in such a way that a first layer has a relatively low energy level with second and third layers having an intermediate energy higher than the energy of the first layer and fourth and fifth layers having high energy greater than either the intermediate or the low energy levels. The energy corresponding to a first permitted level is lower than the potential energy at the bottom of a conduction band of both of the materials used to make the second and third layers and the energy of the second level is between the potential energy at the bottom of a conduction band of both materials of the second and third layers and the potential energy of the bottom of the conduction band of the materials of the fourth and fifth layers. The first permitted level of energy of the quantum well is populated with electrons and an electric field is applied perpendicular to the plane of the structure.
    • 公开了一种量子阱电磁波检测器,其具有半导体结构,该半导体结构包括堆叠材料层,其中材料的禁止间隙的宽度用于获得对应于这样的电子的导带底部的势能分布 第一层具有相对低的能级的方式,其中第二层和第三层的中间能量高于第一层的能量,第四层和第五层的能量大于中间层或低层的能级。 对应于第一允许水平的能量低于用于制造第二和第三层的两种材料的导带底部的势能,并且第二级的能量在第二级的底部的势能之间 第二层和第三层的两种材料的导带和第四层和第五层的材料的导带的底部的势能。 量子阱的第一允许电平的能级被电子填充,并且电场垂直于结构的平面施加。
    • 4. 发明授权
    • Electromagnetic wave detector and image analyzer comprising a detector
of this type
    • 电磁波检测器和图像分析仪,包括这种检测器
    • US5160991A
    • 1992-11-03
    • US764096
    • 1991-09-23
    • Dominique DelacourtMichel PapuchonJean-Paul Pocholle
    • Dominique DelacourtMichel PapuchonJean-Paul Pocholle
    • H01L31/0352H01L31/101
    • B82Y20/00H01L31/0352H01L31/035236H01L31/101
    • The detector can be used to detect a wave in the medium infrared range by controlling the detector through optical pumping by means of a near infrared wave. In this case, the detector has a quantum well structure consisting of alternating first layers and second layers, these materials being such that there is a potential well in the conduction band and the valence band of each first layer. The thickness of each first layer is such that the electrons of the conduction band have at least one permitted discrete level of energy, such that the difference in energy between this level and the bottom of the conduction band in the second layers is smaller than or equal to the energy corresponding to the frequency of the wave to be detected; and such that the difference in energy between the fundamental level permitted for the holes in the valence band and the fundamental level permitted for the electrons in the conduction band corresponds to a frequency close to the frequency of the control wave.
    • 检测器可用于通过利用近红外波的光泵浦来控制检测器来检测中红外范围的波。 在这种情况下,检测器具有由交替的第一层和第二层组成的量子阱结构,这些材料使得在每个第一层的导带和价带中存在势阱。 每个第一层的厚度使得导带的电子具有至少一个允许的离散水平的能量,使得该水平和第二层中的导带的底部之间的能量差异小于或等于 对应于待检测波的频率的能量; 并且使得在价带中的空穴允许的基本电平和导带中的电子所允许的基波电平之间的能量差异对应于接近控制波的频率的频率。
    • 6. 发明申请
    • Laser active optronic system with improved detectivity
    • 激光激光光电系统具有改进的检测性
    • US20070110435A1
    • 2007-05-17
    • US10582713
    • 2004-12-09
    • Michel PapuchonJean-Paul Pocholle
    • Michel PapuchonJean-Paul Pocholle
    • H04B10/08H04B17/00
    • B82Y20/00G01S7/481G01S17/107G01S17/89G02F1/0126G02F1/01716
    • The invention relates to a laser active optronic system with improved detectivity, especially an eye-safe optronic system. The system comprises a channel for the emission by an emission source of a laser beam illuminating a target and a channel for receiving the wave backscattered by the target. An optical switching device is positioned in the receive channel, said optical switching device receiving said backscattered wave and comprising an optical gain medium and pumping means for pumping said gain medium, said gain medium being absorbent at the wavelength of the laser and becoming substantially transparent when it is pumped, in such a way as to allow the switching device to be actuated in the on mode or off mode respectively. It further includes a control unit for controlling the pumping means, allowing the switching device to be actuated in the on mode in at least one temporal window of predetermined duration, triggered at a predetermined instant after the start of emission of the illuminating laser beam.
    • 本发明涉及具有改进的检测性的激光有源光电系统,特别是眼睛安全的光电系统。 该系统包括用于通过照射目标的激光束的发射源发射的通道和用于接收由目标反向散射的波的通道。 光学开关装置位于接收通道中,所述光学开关装置接收所述背向散射波并且包括光学增益介质和用于泵浦所述增益介质的泵送装置,所述增益介质在激光器的波长处是吸收剂并变得基本上是透明的 它被泵送,以允许开关装置分别在接通模式或关闭模式下被致动。 它还包括用于控制泵送装置的控制单元,允许开关装置在预定持续时间的至少一个时间窗口中以开启模式被致动,在照明激光束的发射开始之后的预定时刻被触发。
    • 9. 发明授权
    • Laser active optronic system with improved detectivity
    • 激光激光光电系统具有改进的检测性
    • US07548367B2
    • 2009-06-16
    • US10582713
    • 2004-12-09
    • Michel PapuchonJean-Paul Pocholle
    • Michel PapuchonJean-Paul Pocholle
    • H01S3/102G02B26/10
    • B82Y20/00G01S7/481G01S17/107G01S17/89G02F1/0126G02F1/01716
    • A laser active optronic system has an emission channel for the emission by an emission source of a laser beam which illuminates a target, and a receiving channel for receiving the wave backscattered by the target. An optical switching device is positioned in the receiving channel to receive the backscattered wave and has an optical gain medium and pumping means for pumping the gain medium. The gain medium is absorbent at the wavelength of the laser and becomes substantially transparent when it is pumped to allow the switching device to be actuated in the on mode or off mode respectively. A control unit for controlling the pumping means, allows the switching device to be actuated in the on mode in at least one temporal window of predetermined duration, triggered at a predetermined instant after the start of emission of the illuminating laser beam.
    • 激光有源光电系统具有用于通过照射目标的激光束的发射源的发射的发射通道和用于接收由目标反向散射的波的接收通道。 光学开关装置位于接收通道中以接收背向散射波,并具有用于泵送增益介质的光学增益介质和泵送装置。 增益介质在激光器的波长处是吸收剂,并且当其被泵送时变得基本上是透明的,以允许开关装置分别在接通模式或关闭模式下被致动。 用于控制泵送装置的控制单元允许开关装置在预定持续时间的至少一个时间窗口中以开启模式被致动,在照明激光束的发射开始之后的预定时刻被触发。