公开(公告)号：EP2909573A2

公开(公告)日：2015-08-26

申请号：EP13846546.3

申请日：2013-10-18

Applicant: Picometrix, LLC

Inventor： WHITE, Jeffrey, S. ,  ZIMDARS, David

IPC: G01B9/04

CPC classification number: G01B9/02001 ,  G01B11/06 ,  G01B21/042 ,  G01N21/3563 ,  G01N21/3586 ,  G01N21/8422 ,  G01N21/8901 ,  H04J14/02

Abstract: A system for interpreting terahertz radiation includes a terahertz transmitter configured to output a pulse of terahertz radiation and a terahertz receiver configured to receive at least a portion of the pulse of radiation from the terahertz transmitter. The terahertz receiver is configured to output a signal based on the radiation received by the terahertz receiver.

公开(公告)号：EP2025077B1

公开(公告)日：2011-07-20

申请号：EP07798007.6

申请日：2007-06-01

Applicant: Picometrix, LLC

Inventor： FICHTER, Greg ,  SUCHA, Gregg ,  ZIMDARS, David ,  WILLIAMSON, Steven

IPC: H04B10/00

CPC classification number: H04B10/2513

Abstract: A system for dispersion compensation in a terahertz system includes an optical fiber configured to transmit an optical pulse, a compensator optically coupled to the optical fiber, the compensator configured to compensate for a dispersion of the optical pulse caused as the optical pulse propagates through the optical fiber, and an optically induced terahertz device optically coupled to the compensator, whereby the optically induced terahertz device is configured to transmit or receive terahertz radiation.

公开(公告)号：EP1794558B1

公开(公告)日：2009-09-16

申请号：EP05803742.5

申请日：2005-09-30

Applicant: Picometrix, LLC

Inventor： WILLIAMSON, Steven ,  CHERNOVSKY, Artur, A. ,  WOLTER, Klaus, H. ,  ZIMDARS, David

IPC: G01J9/02 ,  G02B26/12

CPC classification number: G02B26/06 ,  G01J3/0205 ,  G01J3/0235 ,  G02B5/122

Abstract: An optical delay line device includes a rotatable wheel and one or more prisms mounted about the circumference of the wheel. The one are more prisms are positioned to retroreflect the optical beam that passes approximately tangent to the wheel to cause a delay or phase shift to the beam as the wheel rotates.

公开(公告)号：EP1749201A1

公开(公告)日：2007-02-07

申请号：EP05754030.4

申请日：2005-05-26

Applicant: Picometrix, LLC

Inventor： ZIMDARS, David ,  STUK, Greg ,  WILLIAMSON, Steven

IPC: G01N21/35 ,  G01V8/00

CPC classification number: G01N21/3586 ,  G01J3/42 ,  G01N21/3563 ,  G01V3/12

Abstract: A system to detect an article includes one or more terahertz modules. Each module either generates or receives, or both generates and receives, terahertz radiation. Some of the terahertz radiation is reflected from the article and the remainder of the terahertz radiation is transmitted through the article. A processor analyzes the reflected and transmitted terahertz radiation to characterize the article.

公开(公告)号：EP2488849B1

公开(公告)日：2018-08-22

申请号：EP10823999.7

申请日：2010-10-13

Applicant: Picometrix, LLC

Inventor： WHITE, Jeffrey, S. ,  FICHTER, Gregory, D. ,  DULING, Irl ,  ZIMDARS, David

IPC: G01N19/04 ,  G01N21/35

CPC classification number: G01N21/3586 ,  G01N19/04 ,  G01N21/3581 ,  G01N29/04 ,  G01N29/11 ,  G01N29/48

Abstract: 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.

公开(公告)号：EP2828682A1

公开(公告)日：2015-01-28

申请号：EP13764203.9

申请日：2013-03-25

Applicant: Picometrix, LLC

Inventor： ZIMDARS, David

IPC: G01S13/00

CPC classification number: G01S17/026 ,  G01S7/412 ,  G01S7/4802 ,  G01S13/003 ,  G01S13/0209 ,  G01S13/10 ,  G01S13/887 ,  G01S17/003 ,  G01S17/10 ,  G01S17/88 ,  G01V5/0016

Abstract: 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.

Abstract translation: 用于检测隐藏在人身上的异常的系统和方法可以包括具有电磁发射器和电磁接收器的检测探针。 电磁发射器配置为发射电磁脉冲，而电磁接收器配置为在波形窗口内的指定时间从电磁接收器采样电磁脉冲。 电磁脉冲可以跨越0.04至4THz的太赫兹光谱区域。 该系统还可以具有连接到电磁发射器和电磁接收器的光纤，其中飞秒激光脉冲通过光纤从源被引导到电磁发射器和电磁接收器。

公开(公告)号：EP2425218A1

公开(公告)日：2012-03-07

申请号：EP10770198.9

申请日：2010-04-27

Applicant: Picometrix, LLC

Inventor： ZIMDARS, David

IPC: G01J5/00

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0297 ,  G01J3/42 ,  G01N21/3581 ,  G01N21/3586 ,  G02B6/4206

Abstract: 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.

公开(公告)号：EP2488849A1

公开(公告)日：2012-08-22

申请号：EP10823999.7

申请日：2010-10-13

Applicant: Picometrix, LLC

Inventor： WHITE, Jeffrey, S. ,  FICHTER, Gregory, D. ,  DULING, Irl ,  ZIMDARS, David

IPC: G01N19/04

CPC classification number: G01N21/3586 ,  G01N19/04 ,  G01N21/3581 ,  G01N29/04 ,  G01N29/11 ,  G01N29/48

Abstract: 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.

公开(公告)号：EP2025077A2

公开(公告)日：2009-02-18

申请号：EP07798007.6

申请日：2007-06-01

Applicant: Picometrix, LLC

Inventor： FICHTER, Greg ,  SUCHA, Gregg ,  ZIMDARS, David ,  WILLIAMSON, Steven

IPC: H04B10/00

CPC classification number: H04B10/2513

Abstract: A system for dispersion compensation in a terahertz system includes an optical fiber configured to transmit an optical pulse, a compensator optically coupled to the optical fiber, the compensator configured to compensate for a dispersion of the optical pulse caused as the optical pulse propagates through the optical fiber, and an optically induced terahertz device optically coupled to the compensator, whereby the optically induced terahertz device is configured to transmit or receive terahertz radiation.

公开(公告)号：EP1794558A2

公开(公告)日：2007-06-13

申请号：EP05803742.5

申请日：2005-09-30

Applicant: Picometrix, LLC

Inventor： WILLIAMSON, Steven ,  CHERNOVSKY, Artur, A. ,  WOLTER, Klaus, H. ,  ZIMDARS, David

IPC: G01J9/02 ,  G02B26/12

CPC classification number: G02B26/06 ,  G01J3/0205 ,  G01J3/0235 ,  G02B5/122

Abstract: An optical delay line device includes a rotatable wheel and one or more prisms mounted about the circumference of the wheel. The one are more prisms are positioned to retroreflect the optical beam that passes approximately tangent to the wheel to cause a delay or phase shift to the beam as the wheel rotates.