公开(公告)号：US06452206B1

公开(公告)日：2002-09-17

申请号：US09039602

申请日：1998-03-16

申请人： Theodore C. Harman ,  Mildred S. Dresselhaus ,  David L. Spears ,  Michael P. Walsh ,  Stephen B. Cronin ,  Xiangzhong Sun ,  Takaaki Koga

发明人： Theodore C. Harman ,  Mildred S. Dresselhaus ,  David L. Spears ,  Michael P. Walsh ,  Stephen B. Cronin ,  Xiangzhong Sun ,  Takaaki Koga

IPC分类号： H01L29225

CPC分类号： H01L35/16 ,  H01L2924/0002 ,  Y10S257/93 ,  H01L2924/00

摘要： A superlattice structure for thermoelectric power generation includes m monolayers of a first barrier material alternating with n monolayers of a second quantum well material with a pair of monolayers defining a superlattice period and each of the materials having a relatively smooth interface therebetween. Each of the quantum well layers have a thickness which is less than the thickness of the barrier layer by an amount which causes substantial confinement of conduction carriers to the quantum well layer and the alternating layers provide a superlattice structure having a figure of merit which increases with increasing temperature.

摘要翻译： 用于热电发电的超晶格结构包括与第二量子阱材料的n个单层交替的第一屏障材料的m个单层，其中一对单层限定超晶格周期，并且每个材料之间具有相对平滑的界面。 每个量子阱层的厚度小于阻挡层的厚度，其量导致导电载体对量子阱层的实质性限制，并且交替层提供具有随着 温度升高。

公开(公告)号：US20100053614A1

公开(公告)日：2010-03-04

申请号：US12029300

申请日：2008-02-11

申请人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

发明人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

IPC分类号： G01N21/47 ,  G01N21/85

CPC分类号： G01N15/1434 ,  G01N15/1425 ,  G01N15/1459 ,  G01N2015/025 ,  G01N2015/1075 ,  G01N2015/145

摘要： A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.

摘要翻译： 描述了通过使用检测器阵列对流体流中的颗粒进行成像和检测的颗粒检测系统。 检测系统可以包括可以选择性地照射流体流中的颗粒的光源阵列。 检测系统还可以包括采用智能合并来读取测量信号的检测器阵列。 可以通过了解由位置敏感检测器提供的精确粒子位置来实现检测器阵列的智能合并。 基于内置于系统中的智能，检测器阵列可以是低成本的。 该粒子检测系统可能特别适用于不同粒子类型的检测和鉴别，因为可以以低噪声实现粒子信号的读出，并且可以足够灵活以优化每个粒子的读出测量。 粒子检测系统可以用于例如早期预警污染检测系统和制造过程。

公开(公告)号：US07920261B2

公开(公告)日：2011-04-05

申请号：US12029300

申请日：2008-02-11

申请人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

发明人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

IPC分类号： G01N21/00

CPC分类号： G01N15/1434 ,  G01N15/1425 ,  G01N15/1459 ,  G01N2015/025 ,  G01N2015/1075 ,  G01N2015/145

摘要： A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.

摘要翻译： 描述了通过使用检测器阵列对流体流中的颗粒进行成像和检测的颗粒检测系统。 检测系统可以包括可以选择性地照射流体流中的颗粒的光源阵列。 检测系统还可以包括采用智能合并来读取测量信号的检测器阵列。 可以通过了解由位置敏感检测器提供的精确粒子位置来实现检测器阵列的智能合并。 基于内置于系统中的智能，检测器阵列可以是低成本的。 该粒子检测系统可能特别适用于不同粒子类型的检测和鉴别，因为可以以低噪声实现粒子信号的读出，并且可以足够灵活以优化每个粒子的读出测量。 粒子检测系统可以用于例如早期预警污染检测系统和制造过程。

公开(公告)号：US5455421A

公开(公告)日：1995-10-03

申请号：US765316

申请日：1985-08-13

申请人： David L. Spears

发明人： David L. Spears

IPC分类号： G01J3/26 ,  G01J5/00 ,  H01L31/0232 ,  G01J5/20 ,  H01L27/14

CPC分类号： G01J5/08 ,  G01J3/26 ,  G01J5/0853 ,  H01L31/0232

摘要： A photodetector for detecting optical irradiation at a predetermined wavelength is provided with an integral, resonant optical cavity by forming a plurality of layers of material on a metallic reflector backing, the total optical thickness of those layers being an odd multiple of one-quarter of the predetermined wavelength. One of those layers is an active (i.e. optically-absorptive) semiconductor material. When the materials are deposited, that absorbing layer is formed at a level in the cavity including a region of peak optical field. As a result of the enhanced absorption provided by the resonant structure, the active layer may be very thin (i.e., less than one-tenth of a wavelength thick), yielding many beneficial results.

摘要翻译： 用于检测预定波长的光照射的光电检测器通过在金属反射器背衬上形成多层材料而设置有整体的共振光学腔，这些层的总光学厚度是四分之一的奇数倍 预定波长。 这些层中的一个是活性（即光吸收）半导体材料。 当材料沉积时，该吸收层形成在包括峰值光场的区域的空腔中的水平面上。 作为由共振结构提供的增强的吸收的结果，有源层可以非常薄（即，小于波长厚度的十分之一），产生许多有益的结果。