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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

T-ray topography by time-domain polarimetry

Naoya Yasumatsu and Shinichi Watanabe  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2706-2708 (2012)
http://dx.doi.org/10.1364/OL.37.002706


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Abstract

We demonstrate a method for substantially improving the axial resolution of terahertz time-of-flight measurements by analyzing the time-dependent polarization direction of an elliptically polarized single-cycle terahertz electromagnetic (T-ray) pulse. We show that, at its most sensitive, the technique has an axial resolution of λ/1000 (<1μm) with a subsecond measurement time, and very clear T-ray topographic images are obtained. Such a very high axial resolution of the T-ray topography opens the way for novel industrial and biomedical applications such as fine metalworking and corneal inspection in a safe manner.

© 2012 Optical Society of America

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: March 27, 2012
Revised Manuscript: May 19, 2012
Manuscript Accepted: May 21, 2012
Published: June 26, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Naoya Yasumatsu and Shinichi Watanabe, "T-ray topography by time-domain polarimetry," Opt. Lett. 37, 2706-2708 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-37-13-2706


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