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51 条记录 (耗时 0.044 秒)

    Interband cascade lasers
    1.
    发明授权
    Interband cascade lasers 有权
    带间级联激光器

    公开(公告)号：US08385378B2

    公开(公告)日：2013-02-26

    申请号：US13608115

    申请日：2012-09-10

    申请人： Igor Vurgaftman ,  Jerry R. Meyer ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  James R. Lindle ,  Chul Soo Kim ,  Mijin Kim

    发明人： Igor Vurgaftman ,  Jerry R. Meyer ,  Chadwick Lawrence Canedy ,  William W. Bewley ,  James R. Lindle ,  Chul Soo Kim ,  Mijin Kim

    IPC分类号： H01S5/00

    CPC分类号： B82Y20/00 ,  H01S5/3401 ,  H01S5/3422 ,  H01S5/34306

    摘要： A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 μm at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.6 μm, threshold current density of about 400 A/cm2 and threshold power density of about 900 W/cm2.

    摘要翻译： 提出了具有增益介质的增益介质和带间级联激光器。 增益介质可以具有以下特征中的一个或两个：（1）空穴注入器区域中的一个或多个空穴量子阱的厚度与有源量子阱区域中的有源孔量子阱的厚度相当， 使得空穴注入器区域中的价带最大值比活性孔量子阱中的价带最大值低至少100meV; 和（2）电子注入器区域的最后一个阱的厚度在介质的下一阶段的有源增益区域中的第一有源电子量子阱的厚度的85至110％之间。 包含根据本发明的增益介质的激光器可以在高温下在室温连续波操作中在约2.5至8μm的中红外范围内发射至少为4.6μm的波长，约400的阈值电流密度 A / cm 2和阈值功率密度约900W / cm2。

    Apparatus and method for sensing temperature
    8.
    发明授权
    Apparatus and method for sensing temperature 有权
    用于感测温度的装置和方法

    公开(公告)号：US08987666B2

    公开(公告)日：2015-03-24

    申请号：US13616445

    申请日：2012-09-14

    申请人： Ho Soo Park ,  In Sang Song ,  Duck Hwan Kim ,  Chul Soo Kim ,  Sang Uk Son ,  Jea Shik Shin ,  Cui Jing

    发明人： Ho Soo Park ,  In Sang Song ,  Duck Hwan Kim ,  Chul Soo Kim ,  Sang Uk Son ,  Jea Shik Shin ,  Cui Jing

    IPC分类号： G01J5/44

    CPC分类号： G01J5/44

    摘要： A temperature sensing apparatus and method are described to detect a change in a frequency due to a change in a temperature. An infrared light sensing apparatus and method are also provided. The temperature sensing apparatus may include an electrode to generate an electrical signal, a piezoelectric layer to convert the electrical signal into an acoustic wave, and a temperature sensitive layer formed by doping impurities in one or more structures formed on a substrate. Additionally, the infrared light sensing apparatus may convert into heat infrared light incident to an infrared light absorption layer, using an infrared light reflection layer and the infrared light absorption layer. A temperature sensitive layer may detect a change in a resonant frequency based on a change in a temperature of the heat, and may detect a change in infrared light based on the change in the resonant frequency.

    摘要翻译： 描述了一种温度检测装置和方法，以检测由于温度变化引起的频率变化。 还提供了一种红外光感测装置和方法。 温度检测装置可以包括用于产生电信号的电极，将电信号转换成声波的压电层，以及通过在衬底上形成的一个或多个结构中掺杂杂质形成的温度敏感层。 此外，红外光检测装置可以使用红外光反射层和红外光吸收层转换入入红外光吸收层的热红外光。 温度敏感层可以基于热的温度的变化来检测谐振频率的变化，并且可以基于谐振频率的变化来检测红外光的变化。

    BULK ACOUSTIC WAVE RESONATOR STRUCTURE, A MANUFACTURING METHOD THEREOF, AND A DUPLEXER USING THE SAME
    10.
    发明申请
    BULK ACOUSTIC WAVE RESONATOR STRUCTURE, A MANUFACTURING METHOD THEREOF, AND A DUPLEXER USING THE SAME 有权
    大容量声波谐振器结构及其制造方法，以及使用其的双工器

    公开(公告)号：US20120049976A1

    公开(公告)日：2012-03-01

    申请号：US13088905

    申请日：2011-04-18

    申请人： Sang Uk Son ,  In Sang Song ,  Young Il Kim ,  Duck Hwan Kim ,  Chul Soo Kim ,  Jea Shik Shin ,  Hyung Rak Kim ,  Jae Chun Lee

    发明人： Sang Uk Son ,  In Sang Song ,  Young Il Kim ,  Duck Hwan Kim ,  Chul Soo Kim ,  Jea Shik Shin ,  Hyung Rak Kim ,  Jae Chun Lee

    IPC分类号： H03H9/70 ,  H03H3/02 ,  H01L41/047

    CPC分类号： H03H9/02149 ,  H03H3/04 ,  H03H9/1014 ,  H03H9/131 ,  H03H9/564 ,  H03H9/706 ,  H03H2003/021

    摘要： A Bulk Acoustic Wave Resonator (BAWR), a method of manufacturing of the BAWR, and duplexer including the BAWR are provided. The BAWR may include a first substrate including a via hole formed in a predetermined area of a bottom surface of the first substrate. A first air cavity may be formed above the first substrate, and a first lamination resonating portion may be laminated above the first air cavity in sequence of a lower electrode, a piezoelectric layer, and an upper electrode. A second air cavity may be formed above the first substrate, and a second lamination resonating portion may be laminated above the second air cavity in sequence of the lower electrode, the piezoelectric layer, and the upper electrode. The first lamination resonating portion and the second lamination resonating portion may be connected via either the lower electrode or the upper electrode. A first electrode portion may include a third air cavity formed on a bottom surface of either the lower electrode or the upper electrode connecting between the first lamination resonating portion and the second lamination resonating portion.

    摘要翻译： 提供了一种体声波谐振器（BAWR），一种制造BAWR的方法，以及包括BAWR的双工器。 BAWR可以包括第一基板，其包括形成在第一基板的底表面的预定区域中的通孔。 可以在第一基板上形成第一空气腔，并且第一层叠谐振部分可以按照下电极，压电层和上电极的顺序层叠在第一空气腔的上方。 可以在第一基板的上方形成第二空气腔，并且第二层压谐振部分可以按照下电极，压电层和上电极的顺序层叠在第二空气腔的上方。 第一层叠谐振部分和第二层叠谐振部分可以通过下电极或上电极连接。 第一电极部分可以包括形成在第一层压谐振部分和第二层压谐振部分之间的下电极或上电极的底表面上的第三空腔。