Transmission mode terahertz computed tomography

Ferguson, Bradley Stuart; Wang, Shaohong; Zhang, Xi-Cheng

Title: Transmission mode terahertz computed tomography

Patent · Tue Oct 10 00:00:00 EDT 2006

OSTI ID:1175937

Ferguson, Bradley Stuart; Wang, Shaohong; Zhang, Xi-Cheng

A method of obtaining a series of images of a three-dimensional object by transmitting pulsed terahertz (THz) radiation through the entire object from a plurality of angles, optically detecting changes in the transmitted THz radiation using pulsed laser radiation, and constructing a plurality of imaged slices of the three-dimensional object using the detected changes in the transmitted THz radiation. The THz radiation is transmitted through the object as a scanning spot. The object is placed within the Rayleigh range of the focused THz beam and a focusing system is used to transfer the imaging plane from adjacent the object to a desired distance away from the object. A related system is also disclosed.

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Research Organization:: Rensselaer Polytechnic Inst., Troy, NY (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG07-98ER6270

Assignee:: Rensselaer Polytechnic Institute (Troy, NY)

Patent Number(s):: 7,119,339

Application Number:: 10/844,105

OSTI ID:: 1175937

Resource Relation:: Patent File Date: 2004 May 12

Country of Publication:: United States

Language:: English

References (14)

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Towards functional 3D T-ray imaging Ferguson, Bradley; Wang, Shaohong; Gray, Doug Physics in Medicine and Biology, Vol. 47, Issue 21 https://doi.org/10.1088/0031-9155/47/21/309	journal	October 2002
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Electro-optic measurement of THz field pulses with a chirped optical beam Jiang, Zhiping; Zhang, X. -C. Applied Physics Letters, Vol. 72, Issue 16 https://doi.org/10.1063/1.121231	journal	April 1998
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T-ray computed tomography Ferguson, Bradley; Wang, Shaohong; Gray, Doug Optics Letters, Vol. 27, Issue 15 https://doi.org/10.1364/OL.27.001312	journal	January 2002
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