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    • 1. 发明授权
    • Intersubband quantum box semiconductor laser
    • Intersubband量子箱半导体激光器
    • US5953356A
    • 1999-09-14
    • US964244
    • 1997-11-04
    • Dan BotezPeter S. ZoryChia-Fu Hsu
    • Dan BotezPeter S. ZoryChia-Fu Hsu
    • H01S5/34H01S3/19
    • B82Y20/00H01S5/3402H01S5/3412Y10S977/712Y10S977/759
    • An intersubband quantum box laser structure includes an active structure having a two dimensional array of quantum boxes separated from one another in a semiconductor matrix. The quantum boxes are formed to suppress phonon-assisted transitions, and thus the transitions become primarily of the radiative type. Each quantum box has a multilayer structure including an electron injector, an active region with a quantum well, and an electron mirror. Electrons injected from the injector into the active region at a high energy level relax to a lower energy level with the emission of a photon at, for example, mid-infrared wavelengths. The mirror reflects electrons at the higher energy level at which they were injected and transmits electrons at the lower energy level after emission of a photon. Multiple layers of semiconductor are formed on each side of the active structure to provide conduction across the multiple layer structure and to provide optical confinement of the photons emitted. The semiconductor laser structure may be formed using various material systems, including InGaAs/InGaAsP structures grown on GaAs and InGaAs/AlInAs structures grown on InP.
    • 子带间量子箱激光器结构包括具有在半导体矩阵中彼此分离的量子箱的二维阵列的有源结构。 形成量子盒以抑制声子辅助的转变,因此转变主要是辐射型。 每个量子盒具有包括电子注入器,具有量子阱的有源区和电子反射镜的多层结构。 在高能量水平下从注射器注入有源区域的电子以例如中红外波长的光子发射而放松到较低的能级。 镜子反射在它们被注入的较高能级的电子,并且在发射光子之后以较低的能级发射电子。 在有源结构的每一侧上形成多层半导体以提供穿过多层结构的导电并提供所发射的光子的光学限制。 半导体激光器结构可以使用各种材料系统形成,包括在InP上生长的GaAs和InGaAs / AlInAs结构上生长的InGaAs / InGaAsP结构。