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    • 1. 发明授权
    • Wavelength-tunable detector for label-independent optical reader
    • 用于标签无关光学读取器的波长可调检测器
    • US08670121B1
    • 2014-03-11
    • US13613974
    • 2012-09-13
    • David Andrew PastelCameron John Tovey
    • David Andrew PastelCameron John Tovey
    • G01N21/25
    • G01N21/774
    • A wavelength-tunable detector for use in a label-independent optical reader for reading at least one resonant waveguide grating (RWG) biosensor is disclosed. The wavelength-tunable detector includes a tunable wavelength filter. Broadband light is made incident upon the RWG biosensor to produce resonantly reflected light, which is then passed through the tunable wavelength filter whose central wavelength is adjusted, such as by varying the filter angle of the tunable wavelength filter. This generates filtered resonantly reflected light, which is detected by a photodetector that generates an electrical signal in response thereto. The electrical signal is representative of the detected spectrum, which includes the center resonant wavelength of the RWG biosensor. A controller can be used to determine the center resonant wavelength from the electrical signal.
    • 公开了一种用于读取至少一个谐振波导光栅(RWG)生物传感器的标签无关光学读取器中的波长可调检测器。 波长可调检测器包括可调波长滤波器。 宽带光入射到RWG生物传感器上以产生共振的反射光,然后通过调节中心波长的可调谐波长滤波器,例如通过改变可调谐波长滤波器的滤光角度。 这产生滤波的共振反射光,该光被由响应于此产生电信号的光电检测器检测。 电信号表示检测到的光谱,其包括RWG生物传感器的中心谐振波长。 可以使用控制器来确定来自电信号的中心谐振波长。
    • 2. 发明申请
    • Multi-Grating Biosensor For Label-Independent Optical Readers
    • 用于标签无关光学读取器的多光栅生物传感器
    • US20110102799A1
    • 2011-05-05
    • US12915856
    • 2010-10-29
    • Steven R. MatejkaRobert Adam ModavisDavid Andrew PastelGarrett Andrew Piech
    • Steven R. MatejkaRobert Adam ModavisDavid Andrew PastelGarrett Andrew Piech
    • G01N21/55G02B6/10
    • G01N21/7743G01N21/253G01N21/276
    • A multi-grating resonant waveguide (RWG) biosensor for an optical reader system having a spatial resolution limit is disclosed. The multi-grating RWG biosensor includes one or more signal-grating regions and one or more reference-grating regions. The multi-grating RWG biosensor can also include a non-resonance region that spatially separates the one or more signal-grating regions, that spatially separates the one or more reference-grating regions, and that spatially separates the one or more reference-grating regions from the one or more signal-grating regions. The non-resonance region can have a minimum width greater than the optical reader system spatial resolution limit. The RWG biosensor can have an asymmetric split-grating configuration. Methods of measuring a signal resonant wavelength of a multi-grating RWG biosensor using an optical reader having a spatial resolution limit are also disclosed.
    • 公开了一种具有空间分辨率极限的光学读取器系统的多光栅谐振波导(RWG)生物传感器。 多光栅RWG生物传感器包括一个或多个信号光栅区域和一个或多个参考光栅区域。 多光栅RWG生物传感器还可以包括空间上分离一个或多个信号光栅区域的非共振区域,其在空间上分离一个或多个参考光栅区域,并且在空间上分离一个或多个参考光栅区域 从一个或多个信号光栅区域。 非共振区域可以具有大于光学读取器系统空间分辨率极限的最小宽度。 RWG生物传感器可以具有非对称分裂光栅配置。 还公开了使用具有空间分辨率极限的光学读取器来测量多光栅RWG生物传感器的信号谐振波长的方法。
    • 4. 发明申请
    • Wavelength-Tunable Detector For Label-Independent Optical Reader
    • 用于标签无关光学读取器的波长可调检测器
    • US20140071450A1
    • 2014-03-13
    • US13613974
    • 2012-09-13
    • David Andrew PastelCameron John Tovey
    • David Andrew PastelCameron John Tovey
    • G01J3/51
    • G01N21/774
    • A wavelength-tunable detector for use in a label-independent optical reader for reading at least one resonant waveguide grating (RWG) biosensor is disclosed. The wavelength-tunable detector includes a tunable wavelength filter. Broadband light is made incident upon the RWG biosensor to produce resonantly reflected light, which is then passed through the tunable wavelength filter whose central wavelength is adjusted, such as by varying the filter angle of the tunable wavelength filter. This generates filtered resonantly reflected light, which is detected by a photodetector that generates an electrical signal in response thereto. The electrical signal is representative of the detected spectrum, which includes the center resonant wavelength of the RWG biosensor. A controller can be used to determine the center resonant wavelength from the electrical signal.
    • 公开了一种用于读取至少一个谐振波导光栅(RWG)生物传感器的标签无关光学读取器中的波长可调检测器。 波长可调检测器包括可调波长滤波器。 宽带光入射到RWG生物传感器上以产生共振的反射光,然后通过调节中心波长的可调谐波长滤波器,例如通过改变可调波长滤波器的滤光角度。 这产生滤波的共振反射光,该光被由响应于此产生电信号的光电检测器检测。 电信号表示检测到的光谱,其包括RWG生物传感器的中心谐振波长。 可以使用控制器来确定来自电信号的中心谐振波长。
    • 8. 发明授权
    • Multi-grating biosensor for label-independent optical readers
    • 用于标签无关光学读取器的多光栅生物传感器
    • US08619260B2
    • 2013-12-31
    • US12915856
    • 2010-10-29
    • Steven R MatejkaRobert Adam ModavisDavid Andrew PastelGarrett Andrew PiechChristopher L. Timmons
    • Steven R MatejkaRobert Adam ModavisDavid Andrew PastelGarrett Andrew PiechChristopher L. Timmons
    • G01N21/55G01J3/30G01J3/28
    • G01N21/7743G01N21/253G01N21/276
    • A multi-grating resonant waveguide (RWG) biosensor for an optical reader system having a spatial resolution limit is disclosed. The multi-grating RWG biosensor includes one or more signal-grating regions and one or more reference-grating regions. The multi-grating RWG biosensor can also include a non-resonance region that spatially separates the one or more signal-grating regions, that spatially separates the one or more reference-grating regions, and that spatially separates the one or more reference-grating regions from the one or more signal-grating regions. The non-resonance region can have a minimum width greater than the optical reader system spatial resolution limit. The RWG biosensor can have an asymmetric split-grating configuration. Methods of measuring a signal resonant wavelength of a multi-grating RWG biosensor using an optical reader having a spatial resolution limit are also disclosed.
    • 公开了一种具有空间分辨率极限的光学读取器系统的多光栅谐振波导(RWG)生物传感器。 多光栅RWG生物传感器包括一个或多个信号光栅区域和一个或多个参考光栅区域。 多光栅RWG生物传感器还可以包括在空间上分离一个或多个信号光栅区域的非共振区域,其在空间上分离一个或多个参考光栅区域,并且在空间上分离一个或多个参考光栅区域 从一个或多个信号光栅区域。 非共振区域可以具有大于光学读取器系统空间分辨率极限的最小宽度。 RWG生物传感器可以具有非对称分裂光栅配置。 还公开了使用具有空间分辨率极限的光学读取器来测量多光栅RWG生物传感器的信号谐振波长的方法。