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    • 43. 发明授权
    • Shock-wave modulation and control of electromagnetic radiation
    • 电波辐射的冲击波调制和控制
    • US06809856B2
    • 2004-10-26
    • US10412089
    • 2003-04-11
    • Evan ReedMarin SoljacicJohn D. JoannopoulosSteven G. JohnsonMaksim Skorobagatiy
    • Evan ReedMarin SoljacicJohn D. JoannopoulosSteven G. JohnsonMaksim Skorobagatiy
    • G02F202
    • B82Y20/00G02B6/1225G02F1/11G02F1/353G02F2202/32G02F2203/15
    • Electromagnetic radiation is input into a photonic crystal having a shock wave propagating within, wherein interactions between the shock wave and the incident electromagnetic radiation provide for the modification of frequency and bandwidth associated with input electromagnetic radiation. Modifications in frequency of the electromagnetic radiation are on the order of the gap size with 100% efficiency in some cases. Additionally, the bandwidth associated with the electromagnetic radiation is increased or decreased by orders of magnitude based on such interactions. High amplitudes are trapped at the shock front for a controllable period of time, allowing for the controlled manipulation of pulses of light. Lastly, the incorporation of deliberately designed crystal defects and non-linear materials results in the conversion of all the energy in the defect band upwards in frequency if the highest group velocity is less than the shock wave speed.
    • 将电磁辐射输入到具有在其内部传播的冲击波的光子晶体,其中冲击波和入射电磁辐射之间的相互作用提供与输入电磁辐射相关联的频率和带宽的修改。 在某些情况下,电磁辐射频率的变化在间隙大小的数量级上具有100%的效率。 此外,与电磁辐射相关联的带宽基于这种相互作用增加或减少数量级。 高振幅被捕获在冲击前端一段可控的时间,从而允许对光脉冲的受控操纵。 最后,如果最高组速度小于冲击波速度,故意设计的晶体缺陷和非线性材料的结合导致在缺陷带中的所有能量在频率上向上的转换。
    • 46. 发明授权
    • Three-dimensional periodic dielectric structures having photonic Dirac points
    • 具有光狄拉克点的三维周期介电结构
    • US09046647B2
    • 2015-06-02
    • US13769954
    • 2013-02-19
    • Jorge Bravo-AbadJohn D. JoannopoulosMarin Soljacic
    • Jorge Bravo-AbadJohn D. JoannopoulosMarin Soljacic
    • G02B6/12G02B6/122G02B1/00
    • G02B6/1225G02B1/005G02B2006/1213
    • The dielectric, three-dimensional photonic materials disclosed herein feature Dirac-like dispersion in quasi-two-dimensional systems. Embodiments include a face-centered cubic (fcc) structure formed by alternating layers of dielectric rods and dielectric slabs patterned with holes on respective triangular lattices. This fcc structure also includes a defect layer, which may comprise either dielectric rods or a dielectric slab with patterned with holes. This defect layer introduces Dirac cone dispersion into the fcc structure's photonic band structure. Examples of these fcc structures enable enhancement of the spontaneous emission coupling efficiency (the β-factor) over large areas, contrary to the conventional wisdom that the β-factor degrades as the system's size increases. These results enable large-area, low-threshold lasers; single-photon sources; quantum information processing devices; and energy harvesting systems.
    • 本文公开的电介质三维光子材料在准二维体系中表现出狄拉克色散。 实施例包括通过在相应的三角形格子上用孔图案化的介电棒和介电板的交替层形成的面心立方(fcc)结构。 该fcc结构还包括缺陷层,其可以包括介质棒或具有图案化孔的电介质板。 该缺陷层将狄拉克锥体色散引入到fcc结构的光子带结构中。 这些fcc结构的实例使得能够在大面积上增强自发发射耦合效率(“因子”),这与传统的智慧一样,随着系统尺寸的增加,该因素降低。 这些结果可以实现大面积,低阈值的激光器; 单光源; 量子信息处理设备; 和能量收集系统。
    • 47. 发明申请
    • THREE-DIMENSIONAL PERIODIC DIELECTRIC STRUCTURES HAVING PHOTONIC DIRAC POINTS
    • 具有光子DIRAC点的三维周期性电介质结构
    • US20130279850A1
    • 2013-10-24
    • US13769954
    • 2013-02-19
    • Jorge Bravo-AbadJohn D. JoannopoulosMarin Soljacic
    • Jorge Bravo-AbadJohn D. JoannopoulosMarin Soljacic
    • G02B6/122
    • G02B6/1225G02B1/005G02B2006/1213
    • The dielectric, three-dimensional photonic materials disclosed herein feature Dirac-like dispersion in quasi-two-dimensional systems. Embodiments include a face-centered cubic (fcc) structure formed by alternating layers of dielectric rods and dielectric slabs patterned with holes on respective triangular lattices. This fcc structure also includes a defect layer, which may comprise either dielectric rods or a dielectric slab with patterned with holes. This defect layer introduces Dirac cone dispersion into the fcc structure's photonic band structure. Examples of these fcc structures enable enhancement of the spontaneous emission coupling efficiency (the β-factor) over large areas, contrary to the conventional wisdom that the β-factor degrades as the system's size increases. These results enable large-area, low-threshold lasers; single-photon sources; quantum information processing devices; and energy harvesting systems.
    • 本文公开的电介质三维光子材料在准二维体系中表现出狄拉克色散。 实施例包括通过在相应的三角形格子上用孔图案化的介电棒和介电板的交替层形成的面心立方(fcc)结构。 该fcc结构还包括缺陷层,其可以包括介质棒或具有图案化孔的电介质板。 该缺陷层将狄拉克锥体色散引入到fcc结构的光子带结构中。 这些fcc结构的实例使得能够在大面积上增强自发发射耦合效率(β因子),这与传统的智慧相反,β因子随着系统尺寸的增加而降低。 这些结果可以实现大面积,低阈值的激光器; 单光源; 量子信息处理设备; 和能量收集系统。