公开(公告)号：US20090059238A1

公开(公告)日：2009-03-05

申请号：US12139169

申请日：2008-06-13

申请人： Matthew A. Terrel ,  Michel J.F. Digonnet ,  Shanhui Fan

发明人： Matthew A. Terrel ,  Michel J.F. Digonnet ,  Shanhui Fan

IPC分类号： G01C19/72 ,  G01B9/02

CPC分类号： G01D5/35303 ,  G01C19/721 ,  Y10T29/49826

摘要： An optical sensor includes at least one optical coupler and an optical waveguide in optical communication with the at least one optical coupler. The optical waveguide is configured to receive a first optical signal from the at least one optical coupler. The first optical signal has a group velocity and a phase velocity while propagating through at least a portion of the optical waveguide, the group velocity less than the phase velocity. An interference between the first optical signal and a second optical signal is affected by perturbations to at least a portion of the optical sensor.

摘要翻译： 光学传感器包括至少一个光耦合器和与所述至少一个光耦合器光学通信的光波导。 光波导被配置为从至少一个光耦合器接收第一光信号。 第一光信号在传播通过光波导的至少一部分时具有组速度和相速度，组速度小于相速度。 第一光信号和第二光信号之间的干扰受到对光传感器的至少一部分的扰动的影响。

公开(公告)号：US20080112678A1

公开(公告)日：2008-05-15

申请号：US11971181

申请日：2008-01-08

申请人： Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet ,  Vinayak Dangui

发明人： Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet ,  Vinayak Dangui

IPC分类号： G02B6/032 ,  G02B6/02 ,  C03B37/023

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

摘要： An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring surrounding the core region and having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.

摘要翻译： 光纤包括具有第一折射率的材料和其中形成的区域的图案的包层。 每个区域具有低于第一折射率的第二折射率。 光纤还包括芯区域和围绕芯区域的芯环，并且具有内周边，外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。

公开(公告)号：US07228041B2

公开(公告)日：2007-06-05

申请号：US11123879

申请日：2005-05-06

申请人： Hyang Kyun Kim ,  Shanhui Fan ,  Gordon S. Kino ,  Jonghwa Shin ,  Michel J. F. Digonnet ,  Vinayak Dangui

发明人： Hyang Kyun Kim ,  Shanhui Fan ,  Gordon S. Kino ,  Jonghwa Shin ,  Michel J. F. Digonnet ,  Vinayak Dangui

IPC分类号： G02B6/20

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

摘要： A photonic-bandgap fiber includes a photonic crystal lattice with a first material having a first refractive index and a pattern of a second material formed therein. The second material has a second refractive index lower than the first refractive index. The photonic crystal lattice has a plurality of first regions that support intensity lobes of the highest frequency bulk mode and has a plurality of second regions that do not support intensity lobes of the highest frequency bulk mode. The photonic-bandgap fiber further includes a central core formed in the photonic crystal lattice. The photonic-bandgap fiber further includes a core ring having an outer perimeter. The core ring surrounds the central core, wherein the outer perimeter of the core ring passes only through the second regions of the photonic crystal lattice.

摘要翻译： 光子带隙光纤包括具有第一材料的光子晶格，其具有第一折射率和在其中形成的第二材料的图案。 第二材料具有比第一折射率低的第二折射率。 光子晶格具有多个第一区域，其支持最高频率体模式的强度波瓣，并且具有不支持最高频率体模式的强度波瓣的多个第二区域。 光子带隙光纤还包括形成在光子晶格中的中心核心。 光子带隙光纤还包括具有外周边的芯环。 芯环围绕中心芯，其中芯环的外周仅穿过光子晶格的第二区。

公开(公告)号：US20070096087A1

公开(公告)日：2007-05-03

申请号：US11533719

申请日：2006-09-20

申请人： Peter Catrysse ,  Hocheol Shin ,  Shanhui Fan

发明人： Peter Catrysse ,  Hocheol Shin ,  Shanhui Fan

IPC分类号： H01L29/08

CPC分类号： G01Q60/22 ,  G02B5/008 ,  G02F1/19 ,  G02F2203/10

摘要： Using a realistic plasmonic model, an optically thick electrically conductive film with subwavelength hole or holes therein is shown to always support propagating modes near the surface plasmon frequency, where cross-sectional dimensions of the hole or holes are less than about λ/2nh, λ being the wavelength of the light and nh the refractive index of the dielectric material in the hole or holes. This is the case even when material losses are taken into account. Based on the dispersion analysis, in both a single hole or hole array designs, propagating modes play a dominant role in the transport properties of incident light. These structures exhibit a new region of operation, while featuring a high packing density and diffraction-less behavior. These structures can be used in near-field scanning optical microscopy, in collection and emission modes, for writing data to an optical storage device, as wavelength-selective optical filters, for multispectral imaging of a sample, as photolithography masks for transferring an image to a photoresist-coated substrate, as light emitters, light collectors and light modulators.

摘要翻译： 使用真实的等离子体激元模型，其中具有亚波长孔或光孔的光学厚的导电膜被示出为始终支持表面等离子体激元频率附近的传播模式，其中孔或孔的横截面尺寸小于约λ/ 2n

公开(公告)号：US07116864B2

公开(公告)日：2006-10-03

申请号：US11000679

申请日：2004-11-30

申请人： Mehmet Fatih Yanik ,  Wonjoo Suh ,  Zhang Wang ,  Shanhui Fan

发明人： Mehmet Fatih Yanik ,  Wonjoo Suh ,  Zhang Wang ,  Shanhui Fan

IPC分类号： G02B6/26 ,  G02F1/295

CPC分类号： G02B6/29343 ,  B82Y20/00 ,  G02B6/1225 ,  G02F1/365 ,  G02F2202/32

摘要： We introduce a new all-optical mechanism that can compress the bandwidth of light pulses to absolute zero, and bring them to a complete stop. The mechanism can be realized in a system consisting of a waveguide side-coupled to tunable resonators, which generates a photonic band structure that represents a classical analogue of the Electromagnetically Induced Transparency. The same system can also achieve a time-reversal operation. We demonstrate the operation of such a system by finite-difference time-domain simulations of an implementation in photonic crystals.

摘要翻译： 我们引入了一种全光学机制，可以将光脉冲的带宽压缩到绝对零度，并使其完全停止。 该机构可以在由耦合到可调谐谐振器的波导管组成的系统中实现，其产生代表电磁感应透明度的经典类似物的光子带结构。 相同的系统也可以实现时间反转操作。 我们通过光子晶体实现的有限差分时域仿真来证明这种系统的运行。

公开(公告)号：US20050281522A1

公开(公告)日：2005-12-22

申请号：US11123879

申请日：2005-05-06

申请人： Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet ,  Vinayak Dangui

发明人： Hyang Kim ,  Shanhui Fan ,  Gordon Kino ,  Jonghwa Shin ,  Michel Digonnet ,  Vinayak Dangui

IPC分类号： G02B6/02 ,  G02B6/20

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

摘要： A photonic-bandgap fiber includes a photonic crystal lattice with a first material having a first refractive index and a pattern of a second material formed therein. The second material has a second refractive index lower than the first refractive index. The photonic crystal lattice has a plurality of first regions that support intensity lobes of the highest frequency bulk mode and has a plurality of second regions that do not support intensity lobes of the highest frequency bulk mode. The photonic-bandgap fiber further includes a central core formed in the photonic crystal lattice. The photonic-bandgap fiber further includes a core ring having an outer perimeter. The core ring surrounds the central core, wherein the outer perimeter of the core ring passes only through the second regions of the photonic crystal lattice.

摘要翻译： 光子带隙光纤包括具有第一材料的光子晶格，其具有第一折射率和在其中形成的第二材料的图案。 第二材料具有比第一折射率低的第二折射率。 光子晶格具有多个第一区域，其支持最高频率体模式的强度波瓣，并且具有不支持最高频率体模式的强度波瓣的多个第二区域。 光子带隙光纤还包括形成在光子晶格中的中心核心。 光子带隙光纤还包括具有外周边的芯环。 芯环围绕中心芯，其中芯环的外周仅穿过光子晶格的第二区。

公开(公告)号：US06957003B2

公开(公告)日：2005-10-18

申请号：US10291089

申请日：2002-11-08

申请人： Wah Tung Lau ,  Shanhui Fan

发明人： Wah Tung Lau ,  Shanhui Fan

IPC分类号： G02B6/122 ,  G02B6/20

CPC分类号： B82Y20/00 ,  G02B6/1225

摘要： We introduce a general designing procedure that allows us, for any given photonic crystal slab, to create an appropriate line defect structure that possesses single-mode bands with large bandwidth and low dispersion within the photonic band gap region below the light line. This procedure involves designing a high index dielectric waveguide that is phase matched with the gap of the photonic crystal slab, and embedding the dielectric waveguide as a line defect into a crystal in a specific configuration that is free of edge states within the guiding bandwidth. As an example, we show a single mode line defect waveguide with a bandwidth approaching 13% of the center-band frequency, and with a linear dispersion relation throughout most of the bandwidth.

摘要翻译： 我们介绍一个通用的设计程序，允许我们，对于任何给定的光子晶体板，创建一个适当的线缺陷结构，其具有在光线下面的光子带隙区域内具有大带宽和低色散的单模带。 该过程涉及设计与光子晶体板的间隙相位匹配的高折射率介质波导，并且将介质波导作为线缺陷嵌入到在引导带宽内没有边缘状态的特定配置中的晶体中。 作为示例，我们展示了一个单模线路缺陷波导，带宽接近中心频带频率的13％，并且在大多数带宽内具有线性色散关系。

公开(公告)号：US06603911B2

公开(公告)日：2003-08-05

申请号：US10210493

申请日：2002-08-01

申请人： Yoel Fink ,  Shanhui Fan ,  Edwin Thomas ,  Chiping Chen ,  John Joannopoulos

发明人： Yoel Fink ,  Shanhui Fan ,  Edwin Thomas ,  Chiping Chen ,  John Joannopoulos

IPC分类号： G02B616

CPC分类号： G02B6/02304 ,  G02B6/102

摘要： A device having at least one dielectric inner core region in which electromagnetic radiation is confined, and at least two dielectric outer regions surrounding the inner core region, each with a distinct refractive index. The outer regions confine electromagnetic radiation within the inner core region. The refractive indices, the number of outer regions, and thickness of the outer regions result in a reflectivity for a planar geometry that is greater than 95% for angles of incidence ranging from 0° to at least 80° for all polarizations for a range of wavelengths of the electromagnetic radiation. In exemplary embodiments, the inner core region is made of a low dielectric material, and the outer regions include alternating layers of low and high dielectric materials. In one aspect of the invention, the device is a waveguide, and in another aspect the device is a microcavity.

公开(公告)号：US08639064B2

公开(公告)日：2014-01-28

申请号：US12496474

申请日：2009-07-01

申请人： Zongfu Yu ,  Shanhui Fan

发明人： Zongfu Yu ,  Shanhui Fan

IPC分类号： G02F1/035

CPC分类号： G02B6/12007 ,  B82Y20/00 ,  G02B6/1225 ,  G02F1/01708 ,  G02F1/225 ,  G02F1/2257 ,  G02F2001/0151 ,  G02F2001/01758 ,  G02F2001/212 ,  G02F2201/14 ,  G02F2202/32 ,  G02F2203/15

摘要： The refractive index of the at least one photonic structure having two separate photonic bands is modulated, so that light supplied to the at least one photonic structure and initially in one of the two photonic bands of the traveling along a forward direction in the at least one photonic structure is converted to light in a second one of the photonic bands, and light in the one photonic band traveling along a backward direction opposite to the forward direction in the at least one photonic structure is not converted and remains in the one photonic band, achieving non-reciprocity.

摘要翻译： 具有两个分开的光子带的至少一个光子结构的折射率被调制，使得提供给至少一个光子结构并且最初在两个光子带中的一个中的光沿着至少一个 光子结构在第二个光子带中被转换为光，并且沿着与至少一个光子结构中的向前方向相反的反向方向行进的一个光子带中的光不被转换并保留在一个光子带中， 实现非互惠。

公开(公告)号：US08223340B2

公开(公告)日：2012-07-17

申请号：US12767643

申请日：2010-04-26

申请人： Michel J. F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

发明人： Michel J. F. Digonnet ,  Shanhui Fan ,  Seth Lloyd

IPC分类号： G01C19/72

CPC分类号： G01C19/721

摘要： A fiber-optic sensor, a method of configuring a fiber-optic sensor, and a method of using a fiber-optic sensor are provided. The fiber-optic sensor includes an optical fiber coil having a length and a laser source optically coupled to the coil. The laser source has a coherence length. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

摘要翻译： 提供了光纤传感器，配置光纤传感器的方法和使用光纤传感器的方法。 光纤传感器包括具有光学耦合到线圈的长度的光纤线圈和激光源。 激光源具有相干长度。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈，而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数，并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。