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Terahertz imaging from projections u...

Awad, Mohammad Ma'moun.

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Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode./
Author:	Awad, Mohammad Ma'moun.
Description:	98 p.
Notes:	Source: Masters Abstracts International, Volume: 43-05, page: 1775.
Contained By:	Masters Abstracts International43-05.
Subject:	Engineering, Electronics and Electrical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1431113
ISBN:	054203820X

Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode.
Awad, Mohammad Ma'moun.

Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode. - 98 p.

Source: Masters Abstracts International, Volume: 43-05, page: 1775.

Thesis (M.S.)--Oklahoma State University, 2005.

Scope of study. Imaging resolution at terahertz frequencies is limited by the diffraction limit of the optics where the focus spot size is approximately on the order of a wavelength. We demonstrate a novel imaging technique that achieves sub-wavelength resolution at terahertz frequencies. A parallel plate terahertz waveguide is used as a near field imaging aperture in a transmission and reflection geometry. The image data is collected as projections of the target and are in the form of a radon transform. A reconstruction algorithm has to be used to extract the image from those projections. This type of reconstruction is similar to reconstruction techniques used in X-ray computed tomography (CT).

ISBN: 054203820XSubjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode.
LDR:02086nmm 2200301 4500 001 1816041
005 20060717150845.5
008 130610s2005 eng d
020 $a 054203820X
035 $a (UnM)AAI1431113
035 $a AAI1431113
040 $a UnM $c UnM
100 1 $a Awad, Mohammad Ma'moun. $3 1905436
245 1 0 $a Terahertz imaging from projections using a parallel plate waveguide aperture in transmission and reflection mode.
300 $a 98 p.
500 $a Source: Masters Abstracts International, Volume: 43-05, page: 1775.
500 $a Adviser: Alan R. Cheville.
502 $a Thesis (M.S.)--Oklahoma State University, 2005.
520 $a Scope of study. Imaging resolution at terahertz frequencies is limited by the diffraction limit of the optics where the focus spot size is approximately on the order of a wavelength. We demonstrate a novel imaging technique that achieves sub-wavelength resolution at terahertz frequencies. A parallel plate terahertz waveguide is used as a near field imaging aperture in a transmission and reflection geometry. The image data is collected as projections of the target and are in the form of a radon transform. A reconstruction algorithm has to be used to extract the image from those projections. This type of reconstruction is similar to reconstruction techniques used in X-ray computed tomography (CT).
520 $a Findings and conclusions. Using the near-field characteristics of the parallel plate waveguide, was possible to acquire images with sub-wavelength resolution. These images were then compared to images acquired using conventional diffraction limited optics and showed an increase in resolution in both transmission and reflection geometries. The highest achievable resolution was determined by the plate spacing of the parallel plate waveguide.
590 $a School code: 0664.
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Physics, Electricity and Magnetism. $3 1019535
650 4 $a Physics, Optics. $3 1018756
690 $a 0544
690 $a 0607
690 $a 0752
710 2 0 $a Oklahoma State University. $3 626630
773 0 $t Masters Abstracts International $g 43-05.
790 1 0 $a Cheville, Alan R., $e advisor
790 $a 0664
791 $a M.S.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1431113