T-ray topography by time-domain polarimetry

Naoya Yasumatsu, Shinichi Watanabe

Research output: Contribution to journalArticle

23 Citations (Scopus)

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 ̃/1000 (<1 μm) 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.

Original languageEnglish
Pages (from-to)2706-2708
Number of pages3
JournalOptics Letters
Volume37
Issue number13
DOIs
Publication statusPublished - 2012 Jul 1

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polarimetry
rays
topography
inspection
time measurement
electromagnetism
cycles
polarization
pulses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

T-ray topography by time-domain polarimetry. / Yasumatsu, Naoya; Watanabe, Shinichi.

In: Optics Letters, Vol. 37, No. 13, 01.07.2012, p. 2706-2708.

Research output: Contribution to journalArticle

Yasumatsu, Naoya ; Watanabe, Shinichi. / T-ray topography by time-domain polarimetry. In: Optics Letters. 2012 ; Vol. 37, No. 13. pp. 2706-2708.
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