公开(公告)号：US20110116094A1

公开(公告)日：2011-05-19

申请号：US12743036

申请日：2008-11-04

申请人： Thomas David Paul Allsop ,  Ian Bennion ,  David John Webb ,  Ronald Neal

发明人： Thomas David Paul Allsop ,  Ian Bennion ,  David John Webb ,  Ronald Neal

IPC分类号： G01N21/55 ,  G02F1/295 ,  G02B1/12

CPC分类号： G01N21/553 ,  B82Y20/00 ,  G01N21/7743 ,  G01N2021/258 ,  G02B6/1226

摘要： Surface plasmon generation on a metal or semiconductor layer at an outer surface of an optical waveguide, using light reflected or scattered from inside the optical waveguide. One aspect provides a main optical waveguide (11) (e.g. optical fibre) having a second optical waveguide (18) adhered thereto, the second optical waveguide including an optically transparent material (610) separating two surface plasmon supporting layers (600, 620). Another aspect provides a surface plasmon supporting layer of material(s) adhered to the main optical waveguide, the layer having photo-induced regions of material compaction. The regions of compaction may cause un-inscribed refractive index modulations in the main optical waveguide. The surface plasmons are coupled to the guided mode(s) in the main optical waveguide. Surface plasmon resonance depends on sample material in contact with an outermost surface plasmon supporting layer. Properties of the sample material can thus be detected in output guided mode(s) because of the coupling with the generated surface plasmons.

摘要翻译： 使用从光波导内部反射或散射的光在光波导的外表面上的金属或半导体层上产生表面等离子体。 一方面提供一种具有粘附到其上的第二光波导（18）的主光波导（11）（例如光纤），第二光波导包括分离两个表面等离子体支撑层（600,620）的光学透明材料（610）。 另一方面提供了粘附到主光波导的材料的表面等离子体支撑层，该层具有光诱导材料压实区域。 压实区域可能在主光波导中引起未内切的折射率调制。 表面等离子体激元与主光波导中的引导模式耦合。 表面等离子体共振取决于与最外表面等离子体支撑层接触的样品材料。 因此，由于与产生的表面等离子体激元的耦合，因此可以在输出引导模式中检测样品材料的特性。

公开(公告)号：US20090303489A1

公开(公告)日：2009-12-10

申请号：US12306225

申请日：2007-07-13

申请人： Thomas David Paul Allsop ,  David John Webb ,  Ronald Neal ,  Ian Bennion

发明人： Thomas David Paul Allsop ,  David John Webb ,  Ronald Neal ,  Ian Bennion

IPC分类号： G01N21/55

CPC分类号： G02B6/1226 ,  B82Y20/00 ,  G01N21/553 ,  G01N21/7743 ,  G02B6/02 ,  G02B6/02085 ,  G02B6/021 ,  G02B6/02104

摘要： The generation of surface plasmons on a metal layer arranged upon an outer surface of an optical waveguide, using light reflected from inside the optical waveguide. The reflected light may be a reflected part of guided light travelling along the optical waveguide and may be a back-reflected (e.g. obliquely back-reflected) part of the guided light. The reflected part of guided light may form a radiative optical mode(s) which is used to excite surface plasmons and which is also coupled to the remaining guided mode(s) of the light from which it derives. This coupling of the radiation mode(s) and the guided mode(s) enables changes in the radiation mode(s) to cause consequential changes in the guided mode(s) of light. Such changes in the radiation mode(s) may occur due to the coupling of the reflected mode(s) to the surface plasmons they excite at the metal layer.

摘要翻译： 使用从光波导内部反射的光，在布置在光波导的外表面上的金属层上产生表面等离子体激元。 反射光可以是沿着光波导传播的导向光的反射部分，并且可以是被引导光的反射（例如斜后反射）部分。 引导光的反射部分可以形成辐射光学模式，其用于激发表面等离子体激元，并且还耦合到其衍生的光的剩余引导模式。 辐射模式和引导模式的这种耦合使得能够改变辐射模式以引起光的导向模式的相应变化。 由于反射模式与它们在金属层上激发的表面等离子体激元的耦合，可能会发生辐射模式的这种变化。

公开(公告)号：US07221814B2

公开(公告)日：2007-05-22

申请号：US10521335

申请日：2003-07-23

申请人： Thomas David Paul Allsop ,  Timothy Earthrowl-Gould ,  Ian Bennion

发明人： Thomas David Paul Allsop ,  Timothy Earthrowl-Gould ,  Ian Bennion

IPC分类号： G02B6/00

CPC分类号： G02B6/022 ,  A61B5/1077 ,  A61B5/1135 ,  G02B6/02095 ,  G02B6/29319 ,  G02B6/29322 ,  G02B6/29356

摘要： Surface profiling apparatus (10) according to one embodiment comprises three long period gratings (LPGs) (12, 14, 16) fabricated in progressive three layered (PTL) fibre (18) and embedded within a deformable carrier member (40) comprising a skeleton (42) provided between two sheets of flexible rubber skin (44, 46). The LPGs (12, 14, 16) are illuminated by three wavelength modulated, narrow bandwidth optical signals, each having a different wavelength and modulation frequency. A photodetector (26) connected to three lock-in amplifiers (28, 30, 32) measures the amplitudes of the first and second harmonic frequency components of the photodetector output signal corresponding to each LPG (12, 14, 16). Similar surface profiling apparatus (10) forms the basis for respiratory function monitoring apparatus (100) in which five LPGs are provided within each of four PTL fibres (104, 106, 108, 110) and embedded in four carrier members (40a–d) attached to a garment (114) to be worn by a subject.

摘要翻译： 根据一个实施例的表面轮廓设备（10）包括以渐进三层（PTL）纤维（18）制造并嵌入在包括骨架的可变形载体构件（40）内的三个长周期光栅（LPG）（12,14,16） （42）设置在两片柔性橡胶表皮（44,46）之间。 LPG（12,14,16）由三个波长调制窄带宽光信号照亮，每个具有不同的波长和调制频率。 连接到三个锁定放大器（28,30,32）的光电检测器（26）测量对应于每个LPG（12,14,16）的光电检测器输出信号的第一和第二谐波频率分量的振幅。 类似的表面轮廓设备（10）形成呼吸功能监测设备（100）的基础，其中在四个PTL光纤（104,106,108,110）的每一个内提供五个LPG并嵌入四个载体构件（40a-d） 附着到要被受试者佩戴的衣服（114）上。