Use of a photonic crystal for optical amplifier gain control
    13.
    发明授权
    Use of a photonic crystal for optical amplifier gain control 有权
    使用光子晶体进行光放大器增益控制

    公开(公告)号:US07079309B1

    公开(公告)日:2006-07-18

    申请号:US10607065

    申请日:2003-06-25

    Abstract: An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.

    Abstract translation: 具有均匀增益分布的光放大器使用光子晶体来调节增益介质的状态密度,以便改变原子状态之间的发光速率。 通过选择光子晶体中的多个微腔缺陷的尺寸,形状,介电常数和间距来调节增益介质的状态密度。 光放大器特别适用于长光纤中DWDM信号的再生。

    Thermophotovoltaic energy conversion using photonic bandgap selective emitters
    14.
    发明授权
    Thermophotovoltaic energy conversion using photonic bandgap selective emitters 有权
    使用光子带隙选择性发射器的光伏能量转换

    公开(公告)号:US06583350B1

    公开(公告)日:2003-06-24

    申请号:US10114820

    申请日:2002-04-03

    CPC classification number: H01K1/50 H01K1/04 H01K3/02 H01L33/02

    Abstract: A method for thermophotovoltaic generation of electricity comprises heating a metallic photonic crystal to provide selective emission of radiation that is matched to the peak spectral response of a photovoltaic cell that converts the radiation to electricity. The use of a refractory metal, such as tungsten, for the photonic crystal enables high temperature operation for high radiant flux and high dielectric contrast for a full 3D photonic bandgap, preferable for efficient thermophotovoltaic energy conversion.

    Abstract translation: 一种用于电光发电的方法包括加热金属光子晶体以提供与将辐射转换成电的光伏电池的峰值光谱响应匹配的辐射的选择性发射。 对于光子晶体,使用难熔金属(例如钨)可以实现高辐射通量的高温操作和用于全3D光子带隙的高介电对比度,对于有效的热光能转换而言是优选的。

    Photonic crystal devices formed by a charged-particle beam
    16.
    发明授权
    Photonic crystal devices formed by a charged-particle beam 失效
    由带电粒子束形成的光子晶体器件

    公开(公告)号:US6093246A

    公开(公告)日:2000-07-25

    申请号:US574810

    申请日:1995-12-19

    Abstract: A photonic crystal device and method. The photonic crystal device comprises a substrate with at least one photonic crystal formed thereon by a charged-particle beam deposition method. Each photonic crystal comprises a plurality of spaced elements having a composition different from the substrate, and may further include one or more impurity elements substituted for spaced elements. Embodiments of the present invention may be provided as electromagnetic wave filters, polarizers, resonators, sources, mirrors, beam directors and antennas for use at wavelengths in the range from about 0.2 to 200 microns or longer. Additionally, photonic crystal devices may be provided with one or more electromagnetic waveguides adjacent to a photonic crystal for forming integrated electromagnetic circuits for use at optical, infrared, or millimeter-wave frequencies.

    Abstract translation: 一种光子晶体器件及方法。 光子晶体器件包括通过带电粒子束沉积方法在其上形成有至少一个光子晶体的衬底。 每个光子晶体包括具有不同于衬底的组成的多个间隔元件,并且还可包括取代间隔元件的一个或多个杂质元素。 本发明的实施例可以被提供为在约0.2至200微米或更长的波长范围内使用的电磁波滤波器,偏振器,谐振器,源,反射镜,光束导向器和天线。 此外,光子晶体器件可以设置有与光子晶体相邻的一个或多个电磁波导,用于形成用于光学,红外或毫米波频率的集成电磁电路。

    Method for fabricating a photonic crystal
    17.
    发明授权
    Method for fabricating a photonic crystal 有权
    制造光子晶体的方法

    公开(公告)号:US06869330B2

    公开(公告)日:2005-03-22

    申请号:US10350711

    申请日:2003-01-23

    CPC classification number: H01K1/50 H01K1/04 H01K3/02 H01L33/02

    Abstract: A photonically engineered incandescence is disclosed. The emitter materials and photonic crystal structure can be chosen to modify or suppress thermal radiation above a cutoff wavelength, causing the emitter to selectively emit in the visible and near-infrared portions of the spectrum. An efficient incandescent lamp is enabled thereby. A method for fabricating a three-dimensional photonic crystal of a structural material, suitable for the incandescent emitter, is also disclosed.

    Abstract translation: 公开了一种光子学设计的白炽灯。 可以选择发射极材料和光子晶体结构来修改或抑制高于截止波长的热辐射,使得发射极选择性地发射在光谱的可见光和近红外部分。 因此能够实现高效的白炽灯。 还公开了一种用于制造适用于白炽发射体的结构材料的三维光子晶体的方法。

    Microfabricated bragg waveguide
    18.
    发明授权
    Microfabricated bragg waveguide 有权
    微型布拉格波导

    公开(公告)号:US06807353B1

    公开(公告)日:2004-10-19

    申请号:US10025447

    申请日:2001-12-19

    CPC classification number: G02B6/02304 B82Y20/00 G02B6/032 G02B6/1225

    Abstract: A microfabricated Bragg waveguide of semiconductor-compatible material having a hollow core and a multilayer dielectric cladding can be fabricated by integrated circuit technologies. The microfabricated Bragg waveguide can comprise a hollow channel waveguide or a hollow fiber. The Bragg fiber can be fabricated by coating a sacrificial mandrel or mold with alternating layers of high- and low-refractive-index dielectric materials and then removing the mandrel or mold to leave a hollow tube with a multilayer dielectric cladding. The Bragg channel waveguide can be fabricated by forming a trench embedded in a substrate and coating the inner wall of the trench with a multilayer dielectric cladding. The thicknesses of the alternating layers can be selected to satisfy the condition for minimum radiation loss of the guided wave.

    Abstract translation: 具有中空芯和多层电介质包层的半导体兼容材料的微细布拉格波导可以通过集成电路技术制造。 微细布拉格波导可以包括中空通道波导或中空纤维。 布拉格光纤可以通过涂覆具有交替层的高折射率和低折射率介电材料的牺牲心轴或模具来制造,然后去除心轴或模具以留下具有多层电介质包层的中空管。 布拉格通道波导可以通过在衬底中形成沟槽并用多层电介质覆层涂覆沟槽的内壁来制造。 可以选择交替层的厚度以满足导波的最小辐射损耗的条件。

    Photonic crystal light source
    19.
    发明授权
    Photonic crystal light source 有权
    光子晶体光源

    公开(公告)号:US06768256B1

    公开(公告)日:2004-07-27

    申请号:US10301891

    申请日:2002-11-22

    Abstract: A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

    Abstract translation: 光源由在频带上具有增强的光子密度状态的光子晶体提供,并且其中光子晶体的介电​​材料中的至少一个具有复介电常数,从而在频带处产生增强的发光 的光子晶体加热时的频率。 介电材料可以是诸如钨的金属。 通过改变光子晶体结构和材料可以容易地调节光源的光谱特性。 光子晶体光源可以被电加热或其他加热装置加热。 光源可以进一步包括在不同的频带提供增强的光发射以提供颜色混合的附加的光子晶体。 光子晶体光源可以应用于光通信,信息显示,能量转换,传感器和其他光学应用中。

    Photonic layered media
    20.
    发明授权
    Photonic layered media 有权
    光子分层介质

    公开(公告)号:US06388795B1

    公开(公告)日:2002-05-14

    申请号:US09569985

    申请日:2000-05-11

    CPC classification number: B82Y20/00 G02B6/1225 G02B6/13

    Abstract: A new class of structured dielectric media which exhibit significant photonic bandstructure has been invented. The new structures, called photonic layered media, are easy to fabricate using existing layer-by-layer growth techniques, and offer the ability to significantly extend our practical ability to tailor the properties of such optical materials.

    Abstract translation: 已经发明了一类新型的显示光子带结构的结构化介电介质。 称为光子分层介质的新结构使用现有的逐层生长技术很容易制造,并且提供了显着扩展我们的实际能力来定制这种光学材料的性质的能力。

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