中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

52 records (took 0.017 seconds)

    Group III-nitride layers with patterned surfaces
    1.
    发明授权
    Group III-nitride layers with patterned surfaces 有权
    具有图案化表面的III族氮化物层

    公开(公告)号：US08070966B2

    公开(公告)日：2011-12-06

    申请号：US12315202

    申请日：2008-12-01

    Applicant: Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

    Inventor： Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

    IPC: C25F3/00 ,  C03C25/68 ,  H01L21/461

    CPC classification number: B82Y20/00 ,  B81B1/00 ,  G02B6/1225 ,  G02B2006/12035 ,  H01J1/304 ,  H01J3/022 ,  H01J9/025 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/30612

    Abstract: A fabrication method produces a mechanically patterned layer of group III-nitride. The method includes providing a crystalline substrate and forming a first layer of a first group III-nitride on a planar surface of the substrate. The first layer has a single polarity and also has a pattern of holes or trenches that expose a portion of the substrate. The method includes then, epitaxially growing a second layer of a second group III-nitride over the first layer and the exposed portion of substrate. The first and second group III-nitrides have different alloy compositions. The method also includes subjecting the second layer to an aqueous solution of base to mechanically pattern the second layer.

    Abstract translation: 制造方法产生III族氮化物的机械图案化层。 该方法包括提供晶体衬底并在衬底的平坦表面上形成第一III族氮化物的第一层。 第一层具有单一极性，并且还具有露出基板的一部分的孔或沟槽的图案。 该方法包括在第一层和衬底的暴露部分上外延生长第二III族氮化物层的第二层。 第一和第二III族氮化物具有不同的合金组成。 该方法还包括使第二层经受基底水溶液以机械地图形化第二层。

    SURFACE-PLASMON-ASSISTED OPTICAL FREQUENCY CONVERSION
    2.
    发明申请
    SURFACE-PLASMON-ASSISTED OPTICAL FREQUENCY CONVERSION 有权
    表面 - 等离子体辅助光学频率转换

    公开(公告)号：US20110128614A1

    公开(公告)日：2011-06-02

    申请号：US13018997

    申请日：2011-02-01

    Applicant: Girsh Blumberg ,  Aref Chowdhury

    Inventor： Girsh Blumberg ,  Aref Chowdhury

    IPC: G02F1/37 ,  G02B6/00

    CPC classification number: G02B6/1226 ,  B82Y20/00 ,  G02F1/0356 ,  G02F1/3532 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2001/3548 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/20 ,  G02F2203/10

    Abstract: A frequency-conversion method that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. A periodic structure spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.

    Abstract translation: 一种频率转换方法，其使用非线性光学方法在沿着导电条带引导的表面等离子体（SP）波之间传递能量，并且沿着沿与光导体相邻的光波导引导的光束 跳闸。 周期性结构利用与非线性光学过程中的动量失配相关的空间周期空间调制波导芯的非线性磁化率。 空间调制为SP波和光束提供准相位匹配，并实现它们之间的有效能量传递。

    Low total excursion dispersion maps
    4.
    发明授权
    Low total excursion dispersion maps 失效
    低总偏移色散图

    公开(公告)号：US07280765B2

    公开(公告)日：2007-10-09

    申请号：US10729153

    申请日：2003-12-05

    Applicant: Aref Chowdhury ,  Rene′-Jean Essiambre ,  Lisa Kathleen Wickham

    Inventor： Aref Chowdhury ,  Rene′-Jean Essiambre ,  Lisa Kathleen Wickham

    IPC: H04B10/00

    CPC classification number: H04B10/25253

    Abstract: A process optically transports digital data over an all-optical long-haul communication path. The process includes transporting digital optical data signals at a selected bit rate and a selected wavelength over a sequence of transmission spans. The sequence includes 70 percent or more of the spans of the long-haul all-optical communication path. Each span of the sequence has a primary local maximum optical power point for the wavelength on a transmission fiber and nearest to an input of the span. The transporting causes a cumulative dispersion of each signal to evolve such that residual dispersions per span are positive over some of the spans and are negative over other of the spans. At the primary local maximum power points, magnitudes of cumulative dispersions of the signals in pico seconds per nanometer remain at less than 32,000 times the inverse of the bit rate in giga bits per second.

    Abstract translation: 一种过程通过全光学长途通信路径光学传输数字数据。 该过程包括以选定的比特率传送数字光学数据信号，并在一系列传输跨度上传输选定的波长。 该序列包括长距离全光通信路径的70％或更多的跨度。 序列的每个跨度具有用于传输光纤上的波长并且最接近跨度的输入的主要局部最大光功率点。 运输导致每个信号的累积色散发展使得每跨度的每个跨度的残余分散是正的，并且在其它跨度上是负的。 在主要局部最大功率点，信号的累积分散幅度以微微秒/纳米为单位，保持在比特率（千比特/秒）的倒数的32000倍以下。

    Optical frequency-converters based on group III-nitrides
    6.
    发明授权
    Optical frequency-converters based on group III-nitrides 有权
    基于III族氮化物的光学变频器

    公开(公告)号：US07099073B2

    公开(公告)日：2006-08-29

    申请号：US10259051

    申请日：2002-09-27

    Applicant: Aref Chowdhury ,  Hock Min Ng

    Inventor： Aref Chowdhury ,  Hock Min Ng

    IPC: G02F1/365 ,  G02F1/377

    CPC classification number: G02F1/3775 ,  B82Y20/00 ,  G02F1/3556

    Abstract: An apparatus includes an optical waveguide and an optical filter positioned to receive light from the optical waveguide. The optical waveguide includes a sequence of alternating first and second stripes. The sequence runs along a propagation direction in the optical waveguide. The first and second stripes are formed of different polarization states of a group III-nitride semiconductor. The optical filter removes light of a preselected frequency.

    Abstract translation: 一种装置包括光波导和定位成接收来自光波导的光的滤光器。 光波导包括交替的第一和第二条纹的序列。 该序列沿着光波导中的传播方向延伸。 第一和第二条纹由III族氮化物半导体的不同极化状态形成。 滤光器去除预选频率的光。

    Group III-nitride layers with patterned surfaces
    9.
    发明授权
    Group III-nitride layers with patterned surfaces 有权
    具有图案化表面的III族氮化物层

    公开(公告)号：US08613860B2

    公开(公告)日：2013-12-24

    申请号：US13248394

    申请日：2011-09-29

    Applicant: Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

    Inventor： Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

    IPC: C25F3/00 ,  C23F1/00 ,  C03C15/00 ,  C03C25/68 ,  H01L21/302 ,  H01L21/461

    CPC classification number: B82Y20/00 ,  B81B1/00 ,  G02B6/1225 ,  G02B2006/12035 ,  H01J1/304 ,  H01J3/022 ,  H01J9/025 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/30612

    Abstract: A fabrication method produces a mechanically patterned layer of group III-nitride. The method includes providing a crystalline substrate and forming a first layer of a first group III-nitride on a planar surface of the substrate. The first layer has a single polarity and also has a pattern of holes or trenches that expose a portion of the substrate. The method includes then, epitaxially growing a second layer of a second group III-nitride over the first layer and the exposed portion of substrate. The first and second group III-nitrides have different alloy compositions. The method also includes subjecting the second layer to an aqueous solution of base to mechanically pattern the second layer.

    Abstract translation: 制造方法产生III族氮化物的机械图案化层。 该方法包括提供晶体衬底并在衬底的平坦表面上形成第一III族氮化物的第一层。 第一层具有单一极性，并且还具有露出基板的一部分的孔或沟槽的图案。 该方法包括在第一层和衬底的暴露部分上外延生长第二III族氮化物层的第二层。 第一和第二III族氮化物具有不同的合金组成。 该方法还包括使第二层经受基底水溶液以机械地图形化第二层。

    Group III-Nitride Layers With Patterned Surfaces
    10.
    发明申请
    Group III-Nitride Layers With Patterned Surfaces 有权
    具有图形表面的III族氮化物层

    公开(公告)号：US20120028448A1

    公开(公告)日：2012-02-02

    申请号：US13248394

    申请日：2011-09-29

    Applicant: Aref Chowdhury ,  Hock Ng ,  Richart Elliot Slusher

    Inventor： Aref Chowdhury ,  Hock Ng ,  Richart Elliot Slusher

    IPC: H01L21/20

    CPC classification number: B82Y20/00 ,  B81B1/00 ,  G02B6/1225 ,  G02B2006/12035 ,  H01J1/304 ,  H01J3/022 ,  H01J9/025 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/30612

    Abstract: A fabrication method produces a mechanically patterned layer of group III-nitride. The method includes providing a crystalline substrate and forming a first layer of a first group III-nitride on a planar surface of the substrate. The first layer has a single polarity and also has a pattern of holes or trenches that expose a portion of the substrate. The method includes then, epitaxially growing a second layer of a second group III-nitride over the first layer and the exposed portion of substrate. The first and second group III-nitrides have different alloy compositions. The method also includes subjecting the second layer to an aqueous solution of base to mechanically pattern the second layer.

    Abstract translation: 制造方法产生III族氮化物的机械图案化层。 该方法包括提供晶体衬底并在衬底的平坦表面上形成第一III族氮化物的第一层。 第一层具有单一极性，并且还具有露出基板的一部分的孔或沟槽的图案。 该方法包括在第一层和衬底的暴露部分上外延生长第二III族氮化物层的第二层。 第一和第二III族氮化物具有不同的合金组成。 该方法还包括使第二层经受基底水溶液以机械地图形化第二层。

Patent Agency Ranking