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    • 29. 发明申请
    • Method and apparatus for conducting Raman spectroscopy
    • US20070002319A1
    • 2007-01-04
    • US11475582
    • 2006-06-27
    • Kevin KnoppPeidong WangMasud AzimiDaryoosh Vakhshoori
    • Kevin KnoppPeidong WangMasud AzimiDaryoosh Vakhshoori
    • G01J3/44G01N21/65
    • G01J3/02G01J3/0208G01J3/0218G01J3/0227G01J3/0232G01J3/0272G01J3/0291G01J3/44G01J2003/1213G01N21/65G01N2021/656
    • A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; and a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, (ii) capturing an image of the specimen and directing that image to the camera, and (iii) directing the Raman signature of the specimen to the light analyzer. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; a first light path for delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen; a second light path for capturing an image of the specimen and directing that image to the camera; a third light path for directing the Raman signature of the specimen to the light analyzer; wherein the a least a portion of the first light path, the second light path and the third light path are coaxial with one another. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, and (ii) directing the Raman signature of the specimen to the light analyzer; wherein the assembly further comprises a probe body for housing the at least a portion of the light path, and a window, with the light path extending through the window; and further wherein the probe body further comprises a shutter/wiper disposed adjacent to the window. A Raman probe assembly for analyzing a specimen, comprising: a light source for generating laser excitation light; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, and (ii) directing the Raman signature of the specimen to the light analyzer; and wherein the light analyzer comprises a transmitter for transmitting information using an Internet Web protocol. A method for identifying the nature of a specimen, the method comprising: providing a Raman probe assembly comprising: a light source for generating laser excitation light; a camera for capturing an image; a light analyzer for analyzing a Raman signature; a light path for (i) delivering the laser excitation light from the light source to the specimen so as to produce the Raman signature for the specimen, (ii) capturing an image of the specimen and directing that image to the camera, and (iii) directing the Raman signature of the specimen to the light analyzer wherein the assembly further comprises a probe body for housing the at least a portion of the light path, and a window, with the light path extending through the window; wherein the probe body further comprises a shutter/wiper disposed adjacent to the window; wherein the assembly is carried by a remote controlled robot; providing a base station for receiving the image, and for remotely controlling the robot, and for receiving information from the light analyzer; navigating the remote control robot from the base station to a position adjacent to the specimen; opening the shutter/wiper; using the camera to aim the probe body at the specimen; energizing the light source so that the laser excitation light is directed at the specimen; and analyzing the return light passed to the light analyzer so as to determine of the nature of the specimen.
    • 30. 发明授权
    • Microelectromechanically tunable, confocal, vertical cavity surface emitting laser and fabry-perot filter
    • 微机电可调谐,共聚焦,垂直腔表面发射激光和fabry-perot滤光片
    • US06645784B2
    • 2003-11-11
    • US10136057
    • 2002-04-29
    • Parviz TayebatiMasud AzimiPeidong WangDaryoosh Vakhshoori
    • Parviz TayebatiMasud AzimiPeidong WangDaryoosh Vakhshoori
    • H01L2100
    • H01S5/18388G01J3/26G02B6/4203G02B26/001G02B26/0816G02B2006/12104G02B2006/12121H01S5/02284H01S5/0614H01S5/18366H01S5/3201
    • A method is provided for fabricating microelectromechanically tunable vertical-cavity surface-emitting lasers and microelectromechanically tunable Fabry-Perot filters with precise lateral and vertical dimensional control. Strained reflective dielectric film(s) are applied to a multiple quantum well structure to electronically band-gap-engineer the quantum wells. Appropriate strain in the reflective dielectric film layers is also used to create appropriate curvature in one of the reflective dielectric film stacks so as to form a confocal cavity between a planar reflective dielectric film layer and the curved reflective dielectric film layer in the vertical cavity surface emitting laser or filter. Microelectromechanical tunable vertical cavity surface emitting lasers and filter structures are also provided which include a suspended membrane structure made of a dielectric/metal membrane or metal film that supports a cavity-tuning reflective dielectric film stack while being anchored at the perimeter by metal support post(s). Precise air-cavity length and lateral dimensions are achieved by micro-die-casting using a micro-machined sacrificial polyimide or aluminum disk. Further, tuning is achieved by translational movement of the cavity-tuning reflective dielectric film stack in a controlled electrostatic field.
    • 提供了一种用于制造具有精确横向和垂直尺寸控制的微机电可调垂直腔表面发射激光器和微机电可调法布里 - 珀罗滤波器的方法。 将应变反射介电膜应用于多量子阱结构,以电子带隙工程化量子阱。 反射介电膜层中的适当应变也用于在反射介电膜堆叠之一中产生适当的曲率,以便在平面反射介电膜层和在垂直腔表面中的弯曲反射介电膜层之间形成共聚焦腔 激光或过滤器。 还提供了微电子机械可调谐垂直腔表面发射激光器和滤波器结构,其包括由电介质/金属膜或金属膜制成的悬浮膜结构,其在通过金属支撑柱锚固在周边的同时支撑腔调谐反射介电膜堆叠( s)。 通过使用微加工的牺牲聚酰亚胺或铝盘的微压铸来实现精确的空腔长度和横向尺寸。 此外,调谐是通过腔调谐反射介电膜堆叠在受控静电场中的平移运动来实现的。