OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13663–13670

Time-reversal and model-based imaging in a THz waveguide

Malakeh A. Musheinesh, Charles J. Divin, Jeffrey A. Fessler, and Theodore B. Norris  »View Author Affiliations


Optics Express, Vol. 17, Issue 16, pp. 13663-13670 (2009)
http://dx.doi.org/10.1364/OE.17.013663


View Full Text Article

Enhanced HTML    Acrobat PDF (628 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We investigate two approaches to improving the resolution of time-reversal based THz imaging systems. First, we show that a substantial improvement in the reconstruction of time-reversed THz fields is achieved by increasing the system’s numerical aperture via a waveguide technique adapted from ultrasound imaging. Second, a model-based reconstruction algorithm is developed as an alternative to time-reversal THz imaging and its performance is demonstrated for cases with and without a waveguide.

© 2009 OSA

OCIS Codes
(100.0100) Image processing : Image processing
(110.0110) Imaging systems : Imaging systems

ToC Category:
Image Processing

History
Original Manuscript: May 1, 2009
Revised Manuscript: July 16, 2009
Manuscript Accepted: July 17, 2009
Published: July 24, 2009

Citation
Malakeh A. Musheinesh, Charles J. Divin, Jeffrey A. Fessler, and Theodore B. Norris, "Time-reversal and model-based imaging in a THz waveguide," Opt. Express 17, 13663-13670 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-16-13663


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. D. M. Mittleman, M. Gupta, R. Neelamani, R. G. Baraniuk, J. V. Rudd, and M. Koch, “Recent advances in terahertz imaging,” Appl. Phys. B 68(6), 1085–1094 (1999). [CrossRef]
  2. A. B. Ruffin, J. Van Rudd, J. Decker, L. Sanchez-Palencia, L. Le Hors, J. F. Whitaker, and T. B. Norris, “Time Reversal Terahertz Imaging,” IEEE J. Quantum Electron. 38(8), 1110–1119 (2002). [CrossRef]
  3. T. Buma and T. B. Norris, “Time reversal three-dimensional imaging using single-cycle terahertz pulses,” Appl. Phys. Lett. 84(12), 2196–2198 (2004). [CrossRef]
  4. P. Roux, B. Roman, and M. Fink, “Time-reversal in an ultrasonic waveguide,” Appl. Phys. Lett. 70(14), 1811–1813 (1997). [CrossRef]
  5. J. A. Fessler, “Penalized weighted least-squares image reconstruction for positron emission tomography,” IEEE Trans. Med. Imaging 13(2), 290–300 (1994). [CrossRef] [PubMed]
  6. Y. Cai, I. Brener, J. Lopata, J. Wynn, L. Pfeiffer, J. B. Stark, Q. Wu, X. C. Zhang, and J. F. Federici, “Coherent terahertz radiation detection: Direct comparison between free-space electro-optic sampling and antenna detection,” Appl. Phys. Lett. 73(4), 444–446 (1998). [CrossRef]
  7. Z. Jiang and X.-C. Zhang, “2D measurement and spatio-temporal coupling of few-cycle THz pulses,” Opt. Express 5(11), 243–248 (1999). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited