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    • 17. 发明申请
    • METHODS AND SYSTEMS RELATING TO OPTICAL WAVEGUIDE TAPERS
    • 与光波导片相关的方法和系统
    • US20160341896A1
    • 2016-11-24
    • US15159273
    • 2016-05-19
    • ALEXANDRE HORTHNATHANIEL QUITORIANO
    • ALEXANDRE HORTHNATHANIEL QUITORIANO
    • G02B6/122G02B6/30G02B6/126G02B27/00
    • G02B6/1228G02B6/126G02B6/305G02B27/0012
    • Photonic integrated circuits required connection to germanium doped silica cored optical fibers or silica cored and fluorine doped silica cladding optical fibers which have low index contrast and large mode field diameters. However, the optical waveguide within a photonic integrated circuit such as formed using silicon-on-insulator or compound semiconductors tends to be high index contrast and small mode field diameter. Accordingly, it is necessary to implement adiabatic waveguide tapers with a high coupling efficiency and small footprint in order to couple into the photonic integrated circuits to/from the optical fiber. Prior art tapers have been generally high loss and absorb valuable die footprint. In contrast the inventors demonstrate a small low loss waveguide taper designed using a methodology they refer to a “constant loss.”
    • 光子集成电路需要连接到具有低折射率对比度和大模场直径的锗掺杂二氧化硅芯光纤或二氧化硅芯和氟掺杂的二氧化硅包层光纤。 然而,诸如使用绝缘体上硅或复合半导体形成的光子集成电路内的光波导倾向于具有高折射率对比度和小模场直径。 因此,需要实现具有高耦合效率和小占地面积的绝热波导锥,以便耦合到/从光纤到光子集成电路。 现有技术的锥度通常具有高损耗并且吸收有价值的模具尺寸。 相比之下,发明人证明了使用它们指的是“恒定损耗”的方法设计的小的低损耗波导锥度。
    • 20. 发明授权
    • Plasmon enhanced nanowire light emitting diode
    • 等离子体增强纳米线发光二极管
    • US08129710B2
    • 2012-03-06
    • US12262451
    • 2008-10-31
    • Hans ChoDavid FattalNathaniel Quitoriano
    • Hans ChoDavid FattalNathaniel Quitoriano
    • H01L33/00
    • H01L33/18
    • A nanowire light emitting diode (LED) and method of emitting light employ a plasmonic mode. The nanowire LED includes a nanowire having a semiconductor junction, a shell layer coaxially surrounding the nanowire, and an insulating layer, which is plasmonically thin, isolating the shell layer from the nanowire. The shell layer supports a surface plasmon that couples to the semiconductor junction by an evanescent field. Light is generated in a vicinity of the semiconductor junction and the surface plasmon is coupled to the semiconductor junction during light generation. The coupling enhances one or both of an efficiency of light emission and a light emission rate of the LED. A method of making the nanowire LED includes forming the nanowire, providing the insulating layer on the surface of the nanowire, and forming the shell layer on the insulating layer in the vicinity of the semiconductor junction.
    • 纳米线发光二极管(LED)和发光的方法采用等离子体激发模式。 纳米线LED包括具有半导体结的纳米线,同轴地围绕纳米线的壳层,以及等离子体薄的绝缘层,将壳层与纳米线隔离。 壳层支撑通过ev逝场耦合到半导体结的表面等离子体。 在半导体结附近产生光,并且在光产生期间,表面等离子体激元耦合到半导体结。 耦合增强了LED的发光效率和发光速率的一个或两个。 制造纳米线LED的方法包括形成纳米线,在纳米线的表面上提供绝缘层,并在半导体结附近的绝缘层上形成壳层。