Light emitting diode structures
    1.
    发明申请

    公开(公告)号:US20060062540A1

    公开(公告)日:2006-03-23

    申请号:US10946747

    申请日:2004-09-22

    IPC分类号: G02B6/00 H01L33/00

    摘要: According to one aspect of the present invention, a light emitting diode (LED) structure including an active core layer and at least one substrate layer having a first refractive index, comprises a 2-dimensional photonic quasicrystal in the structure, the photonic quasicrystal comprising an array of regions having a second refractive index, the array exhibiting long range order but short range disorder. The long range order is associated with diffractive properties of the structure and gives rise to uniform-far field diffraction patterns from the LED. The present invention enjoys the benefit of improved light extraction from LEDs without undesirable far field illumination patterns.

    Light emitting diode structures
    3.
    发明授权
    Light emitting diode structures 有权
    发光二极管结构

    公开(公告)号:US07509012B2

    公开(公告)日:2009-03-24

    申请号:US10946747

    申请日:2004-09-22

    IPC分类号: G02B6/10

    摘要: According to one aspect of the present invention, a light emitting diode (LED) structure including an active core layer and at least one substrate layer having a first refractive index, comprises a 2-dimensional photonic quasicrystal in the structure, the photonic quasicrystal comprising an array of regions having a second refractive index, the array exhibiting long range order but short range disorder. The long range order is associated with diffractive properties of the structure and gives rise to uniform-far field diffraction patterns from the LED. The present invention enjoys the benefit of improved light extraction from LEDs without undesirable far field illumination patterns.

    摘要翻译: 根据本发明的一个方面,包括活性芯层和至少一个具有第一折射率的衬底层的发光二极管(LED)结构包括在该结构中的二维光子准晶体,所述光子准晶体包括 具有第二折射率的区域阵列,该阵列呈现长距离顺序但短程无序。 长距离顺序与结构的衍射特性相关,并产生来自LED的均匀远场衍射图。 本发明具有从LED获得改进的光提取的优点,而不需要远场照明图案。

    NONLINEAR OPTICAL DEVICE
    4.
    发明申请
    NONLINEAR OPTICAL DEVICE 有权
    非线性光学器件

    公开(公告)号:US20050047739A1

    公开(公告)日:2005-03-03

    申请号:US10648797

    申请日:2003-08-27

    IPC分类号: G02F1/35 G02F1/365 G02B6/00

    摘要: There is provided a non-linear optical device for enhancing the bandwidth accessible in the nonlinear generation of an optical signal. The device comprises a planar optical waveguide, the planar optical waveguide being operative to generate an optical output from an optical input having an input bandwidth by means of a non-linear optical process, the optical output having a wavelength within an accessible bandwidth, wherein the planar optical waveguide is operative to enhance the accessible bandwidth such that the ratio of the accessible bandwidth to the input bandwidth is at least 4. The device is particularly applicable to broad optical continuum generation, but may also be used in a parametric oscillator or amplifier arrangement with broad tuning range.

    摘要翻译: 提供了一种用于增强在光信号的非线性生成中可访问的带宽的非线性光学装置。 该设备包括平面光波导,平面光波导可操作以通过非线性光学过程从具有输入带宽的光输入产生光输出,该光输出具有可访问带宽内的波长,其中, 平面光波导可操作以增强可访问带宽,使得可访问带宽与输入带宽的比率至少为4.该装置特别适用于宽光连续谱生成,但也可用于参数振荡器或放大器布置 具有广泛的调谐范围。

    Metal nano-void photonic crystal for enhanced raman spectroscopy
    5.
    发明授权
    Metal nano-void photonic crystal for enhanced raman spectroscopy 有权
    金属纳米空穴光子晶体,用于增强拉曼光谱

    公开(公告)号:US07864313B2

    公开(公告)日:2011-01-04

    申请号:US12320411

    申请日:2009-01-26

    IPC分类号: G01J3/44

    CPC分类号: G01N21/658

    摘要: A planar optical platform for generating a Raman signal from a foreign object comprises an input region and an output region, for receiving and extracting optical radiation, optically coupled to a plasmonic band structure region. The plasmonic band structure region comprises a layer of a first material, having a first refractive index, patterned with an array of sub-regions of a second material, having a second refractive index, wherein a side-wall of each sub-region is coated with a metallodielectric layer. The array of sub-regions gives rise to a plasmonic band structure and, in use, each sub-region confines a plasmon resonance excited by optical radiation coupled into the plasmonic band structure region, which gives rise to a Raman signal from a foreign object placed proximate the plasmonic band structure region. The platform may be incorporated into a spectroscopic measurement system and is particularly useful for surface-enhanced Raman spectroscopy of analyte molecules.

    摘要翻译: 用于从异物产生拉曼信号的平面光学平台包括用于接收和提取光学辐射的输入区域和输出区域,光学耦合到等离子体激元带结构区域。 等离子体激元带结构区域包括具有第一折射率的第一材料层,其图案化为具有第二折射率的第二材料的子区域阵列,其中每个子区域的侧壁被涂覆 具有金属电介质层。 子区域的阵列产生等离子体激元带结构,并且在使用中,每个子区域限制由耦合到等离子体激元带结构区域中的光辐射激发的等离子体共振,从而产生来自放置的异物的拉曼信号 靠近等离子体激元带结构区域。 该平台可以结合到光谱测量系统中,并且对分析物分子的表面增强拉曼光谱特别有用。

    Light emitting diode structures
    6.
    发明授权
    Light emitting diode structures 有权
    发光二极管结构

    公开(公告)号:US07672548B2

    公开(公告)日:2010-03-02

    申请号:US12344935

    申请日:2008-12-29

    IPC分类号: G02B6/12

    摘要: Light emitting diode (LED) structures are described that include a first layer and a light-generating layer, wherein light generated in the light-generating layer generally emerges from the LED structure through the upper surface of the first layer. The coupling out of light generated by spontaneous emission is enhanced by the presence of patterning in the first layer, which may take the form of an embedded photonic quasicrystal, a photonic structure comprising an amorphous array of subregions, or a zone plate structure. The invention provides the benefit of improved light extraction from the LED without undesirable far field illumination patterns.

    摘要翻译: 描述了包括第一层和发光层的发光二极管(LED)结构,其中在发光层中产生的光通常从LED结构通过第一层的上表面出现。 通过在第一层中存在图案化可以增强由自发发射产生的光的耦合,其可以采用嵌入式光子准晶体的形式,包括子区域的非晶阵列的光子结构或区域板结构。 本发明提供了从LED获得改进的光提取而不需要远场照明图案的益处。

    Metal nano-void photonic crystal for enhanced raman spectroscopy
    7.
    发明申请
    Metal nano-void photonic crystal for enhanced raman spectroscopy 有权
    金属纳米空穴光子晶体,用于增强拉曼光谱

    公开(公告)号:US20090273779A1

    公开(公告)日:2009-11-05

    申请号:US12320411

    申请日:2009-01-26

    IPC分类号: G01J3/44 C23C14/02 C23C14/34

    CPC分类号: G01N21/658

    摘要: A planar optical platform for generating a Raman signal from a foreign object comprises an input region and an output region, for receiving and extracting optical radiation, optically coupled to a plasmonic band structure region. The plasmonic band structure region comprises a layer of a first material, having a first refractive index, patterned with an array of sub-regions of a second material, having a second refractive index, wherein a side-wall of each sub-region is coated with a metallodielectric layer. The array of sub-regions gives rise to a plasmonic band structure and, in use, each sub-region confines a plasmon resonance excited by optical radiation coupled into the plasmonic band structure region, which gives rise to a Raman signal from a foreign object placed proximate the plasmonic band structure region. The platform may be incorporated into a spectroscopic measurement system and is particularly useful for surface-enhanced Raman spectroscopy of analyte molecules.

    摘要翻译: 用于从异物产生拉曼信号的平面光学平台包括用于接收和提取光学辐射的输入区域和输出区域,光学耦合到等离子体激元带结构区域。 等离子体激元带结构区域包括具有第一折射率的第一材料层,其图案化为具有第二折射率的第二材料的子区域阵列,其中每个子区域的侧壁被涂覆 具有金属电介质层。 子区域的阵列产生等离子体激元带结构,并且在使用中,每个子区域限制由耦合到等离子体激元带结构区域中的光辐射激发的等离子体共振,从而产生来自放置的异物的拉曼信号 靠近等离子体激元带结构区域。 该平台可以结合到光谱测量系统中,并且对分析物分子的表面增强拉曼光谱特别有用。

    Light Emitting Diode Structures
    8.
    发明申请
    Light Emitting Diode Structures 有权
    发光二极管结构

    公开(公告)号:US20090101931A1

    公开(公告)日:2009-04-23

    申请号:US12344935

    申请日:2008-12-29

    IPC分类号: H01L33/00

    摘要: Light emitting diode (LED) structures are described that include a first layer and a light-generating layer, wherein light generated in the light-generating layer generally emerges from the LED structure through the upper surface of the first layer. The coupling out of light generated by spontaneous emission is enhanced by the presence of patterning in the first layer, which may take the form of an embedded photonic quasicrystal, a photonic structure comprising an amorphous array of subregions, or a zone plate structure. The invention provides the benefit of improved light extraction from the LED without undesirable far field illumination patterns.

    摘要翻译: 描述了包括第一层和发光层的发光二极管(LED)结构,其中在发光层中产生的光通常从LED结构通过第一层的上表面出现。 通过在第一层中存在图案化可以增强由自发发射产生的光的耦合,其可以采用嵌入式光子准晶体的形式,包括子区域的非晶阵列的光子结构或区域板结构。 本发明提供了从LED获得改进的光提取而不需要远场照明图案的益处。

    Metal nano-void photonic crystal for enhanced Raman spectroscopy
    9.
    发明授权
    Metal nano-void photonic crystal for enhanced Raman spectroscopy 失效
    金属纳米空穴光子晶体,用于增强拉曼光谱

    公开(公告)号:US07483130B2

    公开(公告)日:2009-01-27

    申请号:US11267619

    申请日:2005-11-04

    IPC分类号: G01J3/44

    CPC分类号: G01N21/658

    摘要: A planar optical platform for generating a Raman signal from a foreign object comprises an input region and an output region, for receiving and extracting optical radiation, optically coupled to a plasmonic band structure region. The plasmonic band structure region comprises a layer of a first material, having a first refractive index, patterned with an array of sub-regions of a second material, having a second refractive index, wherein a side-wall of each sub-region is coated with a metallodielectric layer. The array of sub-regions gives rise to a plasmonic band structure and, in use, each sub-region confines a plasmon resonance excited by optical radiation coupled into the plasmonic band structure region, which gives rise to a Raman signal from a foreign object placed proximate the plasmonic band structure region. The platform may be incorporated into a spectroscopic measurement system and is particularly useful for surface-enhanced Raman spectroscopy of analyte molecules.

    摘要翻译: 用于从异物产生拉曼信号的平面光学平台包括用于接收和提取光学辐射的输入区域和输出区域,光学耦合到等离子体激元带结构区域。 等离子体激元带结构区域包括具有第一折射率的第一材料层,其图案化为具有第二折射率的第二材料的子区域阵列,其中每个子区域的侧壁被涂覆 具有金属电介质层。 子区域的阵列产生等离子体激元带结构,并且在使用中,每个子区域限制由耦合到等离子体激元带结构区域中的光辐射激发的等离子体共振,从而产生来自放置的异物的拉曼信号 靠近等离子体激元带结构区域。 该平台可以结合到光谱测量系统中,并且对分析物分子的表面增强拉曼光谱特别有用。

    Metal nano-void photonic crystal for enhanced raman spectroscopy

    公开(公告)号:US20060119853A1

    公开(公告)日:2006-06-08

    申请号:US11267619

    申请日:2005-11-04

    IPC分类号: G01N21/55 G01N21/01 G01J3/44

    CPC分类号: G01N21/658

    摘要: A planar optical platform for generating a Raman signal from a foreign object comprises an input region and an output region, for receiving and extracting optical radiation, optically coupled to a plasmonic band structure region. The plasmonic band structure region comprises a layer of a first material, having a first refractive index, patterned with an array of sub-regions of a second material, having a second refractive index, wherein a side-wall of each sub-region is coated with a metallodielectric layer. The array of sub-regions gives rise to a plasmonic band structure and, in use, each sub-region confines a plasmon resonance excited by optical radiation coupled into the plasmonic band structure region, which gives rise to a Raman signal from a foreign object placed proximate the plasmonic band structure region. The platform may be incorporated into a spectroscopic measurement system and is particularly useful for surface-enhanced Raman spectroscopy of analyte molecules.