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您的检索式：作者名="DOUGLAS H.WERNER"
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| 1 | 阻抗加载脉冲天线的研究显示文摘为了解决阻抗加载脉冲天线的计算,本文中推导了一种新的阻抗边界条件。这样,一类新的脉冲天线,如电抗加载脉冲天线,就可以由时域有限差分(FDTD)法来进行计算。本文中给出了电容、电感单独加载及电阻、电容和电感混合加载天线的计算实例。 | 王均宏 Douglas H.Werner | 1999 | 通信学报1999，20，S1： | 5 |
| 2 | An Overview of Fractal Antenna Engineering Research显示文摘 | Douglas H.Werner Suman Ganguly | | 0，，01： | 1 |
| 3 | Deep-subwavelength light transmission in hybrid nanowire-loaded silicon nano-rib waveguides显示文摘Hybrid plasmonic waveguides leveraging the coupling between dielectric modes and plasmon polaritons have emerged as a major focus of research attention during the past decade. A feasible way for constructing practical hybrid plasmonic structures is to integrate metallic configurations with silicon-on-insulator waveguiding platforms. Here we report a transformative high-performance silicon-based hybrid plasmonic waveguide that consists of a silicon nano-rib loaded with a metallic nanowire. A deep-subwavelength mode area(λ~2/4.5 × 10~5-λ~2/7 × 10~3), in conjunction with a reasonable propagation distance(2.2-60.2 μm), is achievable at a telecommunication wavelength of 1.55 μm. Such a nano-rib-based waveguide outperforms its conventional hybrid and plasmonic waveguiding counterparts, demonstrating tighter optical confinement for similar propagation distances and a significantly enhanced figure of merit. The guiding properties of the fundamental mode are also quite robust against possible fabrication imperfections. Due to the strong confinement capability, our proposed hybrid configuration features ultralow waveguide cross talk and enables submicron bends with moderate attenuation as well. The outstanding optical performance renders such waveguides as promising building blocks for ultracompact passive and active silicon-based integrated photonic components. | YUSHENG BIAN QIANG REN LEI KANG TAIWEI YUE PINGJUAN L.WERNER DOUGLAS H.WERNER | 2018 | Photonics Research2018，9，1： | 1 |
| 4 | Interference-enhanced optical magnetism in surface high-index resonators: a pathway toward high-performance ultracompact linear and nonlinear meta-optics显示文摘Artificial magnetism in optical frequencies is one of the most intriguing phenomena associated with metamaterials. The Mie resonance of high-index resonators provides an alternative approach to achieving optical magnetism with simple structures. Given the generally moderate refractive index exhibited by available materials at optical frequencies, Mie resonances usually suffer from coupling between the multipole modes, and the corresponding response of the Mie metasurfaces can be analyzed based on the concept of 'meta-optics.'Here, we show that the optical magnetism in high-index resonators can be significantly enhanced by adding a highly reflective back mirror to the system. To highlight the transformative ability of this approach for improving meta-optics in the linear and nonlinear regimes, two proof-of-concept demonstrations are presented.Theoretical modeling reveals that low-pump power ultrafast nonlinear optics can be realized in periodic Si nanodisk arrays backed with a gold film, a system supporting guided resonance modes. Moreover, based on the enhanced magnetism of individual high-index resonators, a pair of silicon cuboids is demonstrated as a magnetic antenna for directional excitation of surface plasmon waves. The interference-enhanced magnetism of high-index resonators provides a disruptive technology for enabling meta-optics comprising ultracompact, high-speed, and power-efficient photonic devices. | LEI KANG HUAGUANG BAO DOUGLAS H.WERNER | 2019 | Photonics Research2019，7，11： | 0 |
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