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1. 发明授权

US07468503B2 Pin photodetector with mini-mesa contact layer 有权
标题翻译：带微型台面接触层的针式光电探测器
公开(公告)号：US07468503B2
公开(公告)日：2008-12-23
申请号：US10555144
申请日：2004-04-30
申请人： Cheng C. Ko , Barry Levine
发明人： Cheng C. Ko , Barry Levine
IPC分类号： H01L31/00
CPC分类号： H01L31/105 , H01L31/02161 , H01L31/03046 , Y02E10/544
摘要： A PIN photodetector includes a first semiconductor contact layer, a semiconductor absorption layer having a larger area than the first semiconductor contact layer, a semiconductor passivation layer positioned between the first semiconductor contact layer and absorption layer, and a second semiconductor contact layer. The semiconductor absorption layer and passivation layers are positioned between the first and second semiconductor contact layers.
摘要翻译： PIN光检测器包括第一半导体接触层，具有比第一半导体接触层更大的面积的半导体吸收层，位于第一半导体接触层和吸收层之间的半导体钝化层和第二半导体接触层。半导体吸收层和钝化层位于第一和第二半导体接触层之间。

2. 发明授权

US09998236B2 System for transmitting and receiving electromagnetic radiation 有权
公开(公告)号：US09998236B2
公开(公告)日：2018-06-12
申请号：US15103605
申请日：2014-12-17
申请人： Picometrix, LLC
发明人： Timothy Strong , Gregory Stuk , Steven Williamson
IPC分类号： H04B10/00 , G01J5/02 , H04B10/90 , G01N21/3586 , H04B10/114 , H04B10/25
CPC分类号： H04B10/90 , G01N21/3586 , H04B10/114 , H04B10/25
摘要： A system for transmitting and receiving electromagnetic radiation includes a beam splitter and a transceiver. The beam splitter is configured to separate an optical pulse into a pump pulse and a probe pulse. The transceiver may include a transmitter switch and a receiver switch. The pump pulse is directed toward the transmitter switch and the probe pulse is directed towards the receiver switch. Electromagnetic radiation is emitted from the transceiver when the pump pulse strikes the transmitter switch. The electromagnetic radiation may be terahertz radiation in either a pulsed or continuous wave form.

3. 发明授权

US07348608B2 Planar avalanche photodiode 有权
标题翻译：平面雪崩光电二极管
公开(公告)号：US07348608B2
公开(公告)日：2008-03-25
申请号：US10836878
申请日：2004-04-30
申请人： Cheng C. Ko , Barry Levine
发明人： Cheng C. Ko , Barry Levine
IPC分类号： H01L29/732
CPC分类号： H01L31/1075 , H01L31/035281 , Y02E10/50
摘要： A planar avalanche photodiode includes a small localized contact layer on the top of the device produced by either a diffusion or etching process and a semiconductor layer defining a lower contact area. A semiconductor multiplication layer is positioned between the two contact areas and a semiconductor absorption layer is positioned between the multiplication layer and the upper contact layer. The photodiode has a low capacitance and a low field near the edges of the semiconductor multiplication and absorption layers.
摘要翻译：平面雪崩光电二极管包括通过扩散或蚀刻工艺产生的器件的顶部上的小的局部接触层和限定较低接触面积的半导体层。半导体倍增层位于两个接触区域之间，半导体吸收层位于倍增层和上接触层之间。光电二极管在半导体乘法吸收层的边缘附近具有低电容和低电场。

4. 发明授权

US07348607B2 Planar avalanche photodiode 有权
标题翻译：平面雪崩光电二极管
公开(公告)号：US07348607B2
公开(公告)日：2008-03-25
申请号：US10502110
申请日：2003-02-03
申请人： Cheng C. Ko , Barry Levine
发明人： Cheng C. Ko , Barry Levine
IPC分类号： H01L29/732
CPC分类号： H01L31/1075 , H01L31/035281 , Y02E10/50
摘要： The present invention includes a planar avalanche photodiode having a first n-type semiconductor layer defining a planar contact area, and a second n-type semiconductor layer having a p-type diffusion region. Further features of the structure includes an n-type semiconductor multiplication layer, an n-type semiconductor absorption layer, and a p-type contact layer. Further embodiments include a planar avalanche photodiode having a first n-type semiconductor layer defining a planar contact area, an n-type semiconductor multiplication layer, an n-type semiconductor absorption layer and a p-type semiconductor layer electrically coupled to a p-type contact layer.
摘要翻译：本发明包括具有限定平面接触面积的第一n型半导体层的平面雪崩光电二极管和具有p型扩散区域的第二n型半导体层。该结构的其它特征包括n型半导体倍增层，n型半导体吸收层和p型接触层。另外的实施例包括具有限定平面接触面积的第一n型半导体层的平面雪崩光电二极管，n型半导体倍增层，n型半导体吸收层和与p型电耦合的p型半导体层接触层。

5. 发明授权

US07263266B2 Precision fiber attachment 有权
标题翻译：精密纤维附件
公开(公告)号：US07263266B2
公开(公告)日：2007-08-28
申请号：US10538248
申请日：2003-12-10
申请人： Steven L. Williamson
发明人： Steven L. Williamson
IPC分类号： G02B6/00
CPC分类号： G02B6/4238 , G02B6/3628
摘要： This invention is directed to a fiber attachment including a hot pad and solder glass that attaches an optical fiber to the hot pad. The attached is formed by positioning the optical fiber over the hot pad and aligning the optical fiber. The optical fiber is then raised and solder glass preforms are positioned on the hot pad. Heat is applied to the glass preforms such that they melt. Once the preforms are melted, the optical fiber is lowered into the molten solder glass. The current is then removed and the solder glass solidifies as it cools to form an attachment between the optical fiber and the hot pad.
摘要翻译：本发明涉及一种光纤附件，其包括将光纤连接到热垫上的热焊盘和焊料玻璃。通过将光纤定位在热垫上并对准光纤而形成附接。然后将光纤升起，将焊接玻璃预制件放置在热垫上。将热量施加到玻璃预制件上使得它们熔化。一旦预成型件熔化，则将光纤降低到熔融的焊料玻璃中。然后去除电流，并且焊料玻璃在其冷却时固化以形成光纤和热垫之间的附接。

6. 发明授权

US10024963B2 System and method to detect anomalies 有权
公开(公告)号：US10024963B2
公开(公告)日：2018-07-17
申请号：US14386572
申请日：2013-03-25
申请人： Picometrix LLC
发明人： David Zimdars
IPC分类号： G01S17/02 , G01S17/88 , G01S13/02 , G01S13/88 , G01S7/41 , G01S7/48 , G01V5/00 , G01S17/00 , G01S17/10 , G01S13/00 , G01S13/10
CPC分类号： G01S17/026 , G01S7/412 , G01S7/4802 , G01S13/003 , G01S13/0209 , G01S13/10 , G01S13/887 , G01S17/003 , G01S17/10 , G01S17/88 , G01V5/0016
摘要： A system and method for detecting anomalies concealed upon a person may include a detection probe having an electromagnetic transmitter and an electromagnetic receiver. The electromagnetic transmitter is configured to emit electromagnetic pulses, while the electromagnetic receiver is configured to sample electromagnetic pulses from the electromagnetic receiver at specified times within a waveform window. The electromagnetic pulses may span the terahertz spectral region of 0.04 to 4 THz. The system may also have optical fibers connected to the electromagnetic transmitter and electromagnetic receiver, wherein femtosecond laser pulses are directed from a source to the electromagnetic transmitter and the electromagnetic receiver by the optical fibers.

7. 发明授权

US09588041B2 System and method for detection and measurement of interfacial properties in single and multilayer objects 有权
标题翻译：用于检测和测量单层和多层物体界面特性的系统和方法
公开(公告)号：US09588041B2
公开(公告)日：2017-03-07
申请号：US13501250
申请日：2010-10-13
申请人： Jeffrey S. White , Gregory D. Fichter , Irl Duling , David Zimdars
发明人： Jeffrey S. White , Gregory D. Fichter , Irl Duling , David Zimdars
IPC分类号： G01N29/04 , G01N29/11 , G01N29/48 , G01N21/3586 , G01N19/04 , G01N21/3581
CPC分类号： G01N21/3586 , G01N19/04 , G01N21/3581 , G01N29/04 , G01N29/11 , G01N29/48
摘要： A system for determining a material property at an interface between a first layer and a second layer includes a transmitter outputting electromagnetic radiation to the sample, a receiver receiving electromagnetic radiation that was reflected by or transmitted though the sample, and a data acquisition device. The data acquisition device digitizes the electromagnetic radiation to yield waveform data. The waveform data represents the radiation reflected by or transmitted though the sample. The material property to be determined is generally the adhesive strength between the first and second layers.
摘要翻译：用于确定第一层和第二层之间的界面处的材料属性的系统包括向样品输出电磁辐射的发射器，接收被样品反射或透射的电磁辐射的接收器以及数据采集装置。数据采集装置对电磁辐射进行数字化，以产生波形数据。波形数据表示通过样品反射或透射的辐射。要确定的材料性质通常是第一层和第二层之间的粘合强度。

8. 发明授权

US08457915B2 System and method to measure the transit time position(s) of pulses in time domain data 有权
标题翻译：用于测量时域数据中脉冲的通过时间位置的系统和方法
公开(公告)号：US08457915B2
公开(公告)日：2013-06-04
申请号：US12667986
申请日：2008-07-14
申请人： Jeffrey S. White , Gregory D. Fichter , David Zimdars , Steven Williamson
发明人： Jeffrey S. White , Gregory D. Fichter , David Zimdars , Steven Williamson
IPC分类号： G06F19/00
CPC分类号： G01C3/08 , G01N21/3586
摘要： A system and method to measure, with increased precision, the transit time position(s) of pulses in a time domain data. An example data set would be the transit time of pulses in Time-Domain Terahertz (TD-THz) data. The precision of the pulse timing directly affects the precision of determined sample properties measurements (e.g., thickness). Additionally, an internal calibration etalon structure and algorithm method provides for continuous system precision/accuracy check method to increase sample measurement integrity. The etalon structure can improve the precision of sample property measurements (e.g., absolute thickness). Various hardware and system implementations of the above are described.
摘要翻译：随着精度的提高，在时域数据中测量脉冲的通过时间位置的系统和方法。示例数据集将是时域太赫兹（TD-THz）数据中脉冲的传播时间。脉冲定时的精度直接影响确定的样品特性测量（例如，厚度）的精度。另外，内部校准标准具结构和算法方法提供了连续的系统精度/精度检查方法，以提高样品测量的完整性。标准具结构可以提高样品性质测量的精度（例如，绝对厚度）。描述上述的各种硬件和系统实现。

9. 发明授权

US08436310B2 System and method reducing fiber stretch induced timing errors in fiber optic coupled time domain terahertz systems 有权
标题翻译：系统和方法减少光纤耦合时域太赫兹系统中的光纤拉伸引起的定时误差
公开(公告)号：US08436310B2
公开(公告)日：2013-05-07
申请号：US13266023
申请日：2010-04-27
申请人： David Zimdars
发明人： David Zimdars
IPC分类号： G01J5/02 , G02B6/26
CPC分类号： G01J3/02 , G01J3/0218 , G01J3/0297 , G01J3/42 , G01N21/3581 , G01N21/3586 , G02B6/4206
摘要： A system for reducing effects relating to stretching of an optical fiber includes an optical control source, the optical source outputting an optical signal, a terahertz transmitter and receiver both being optically coupled to the optical source, and a means for providing the optical signal to both the terahertz transmitter and terahertz receiver such that the terahertz receiver is synchronized to the terahertz transmitter by the optical signal. The means prevents the stretching of an fiber carrying the optical signal provided to the terahertz transmitter or terahertz receiver or allows for the stretching an optical fiber such that the terahertz receiver will still be synchronized to the terahertz transmitter by the optical signal.
摘要翻译：用于减少与光纤的拉伸有关的影响的系统包括光控制源，输出光信号的光源，光耦合到光源的太赫兹发射器和接收器，以及用于向光源提供光信号的装置太赫兹发射机和太赫兹接收机，使得太赫兹接收机通过光信号与太赫兹发射机同步。该装置防止承载提供给太赫兹发射机或太赫兹接收机的光信号的光纤的拉伸或允许拉伸光纤，使得太赫兹接收机仍将通过光信号与太赫兹发射机同步。

10. 发明授权

US08390910B2 Optical delay 有权
标题翻译：光延迟
公开(公告)号：US08390910B2
公开(公告)日：2013-03-05
申请号：US11576215
申请日：2005-09-30
申请人： David A. Zimdars , Artur Chernovsky , Steven L. Williamson , Klaus Wolter
发明人： David A. Zimdars , Artur Chernovsky , Steven L. Williamson , Klaus Wolter
IPC分类号： G02B26/12
CPC分类号： G02B26/06 , G01J3/0205 , G01J3/0235 , G02B5/122
摘要： A system for varying a delay of an optical beam has a rotatable wheel and a set of one or more prisms mounted about a circumference of the rotatable wheel. The set of one or more prisms are positioned to retroreflect the optical beam that passes approximately tangent to the rotatable wheel to cause a delay or phase shift to the beam as the rotatable wheel rotates.
摘要翻译：用于改变光束的延迟的系统具有可旋转的轮和围绕可旋转轮的圆周安装的一个或多个棱镜的集合。该组一个或多个棱镜被定位成回射近似于与可旋转轮相切的光束，以在可旋转轮旋转时造成延迟或相移到光束。

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