JETP Letters

, Volume 88, Issue 8, pp 492–495 | Cite as

Contrast and resolution enhancement in a confocal terahertz video system

  • N. N. Zinov’ev
  • A. V. Andrianov
  • A. J. Gallant
  • J. M. Chamberlain
  • V. N. Trukhin
Atoms, Spectra, Radiations

Abstract

The effect of image contrast enhancement without the loss of the spectral composition of the radiation under investigation has been experimentally demonstrated for a terahertz far-field video system. The result has been obtained by using a confocal aperture placed in the intermediate-focus region of the optical system. The result is a fundamental advance towards the achievement of subwavelength resolution and the contrast of microscopy video systems in the terahertz spectral range.

PACS numbers

42.30.Va 42.68.Sq 42.79.Ag 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    W. L. Chan, J. Deibel, and D. M. Mittleman, Rep. Prog. Phys. 70, 1325 (2007).CrossRefADSGoogle Scholar
  2. 2.
    S. Hunsche, M. Koch, I. Brener, and M. C. Nuss, Opt. Commun. 150, 22 (1998).CrossRefGoogle Scholar
  3. 3.
    Roland Kersting, Hou-Tong Chen, N. Karpowicz, and G. C. Cho, J. Opt. A: Pure Appl. Opt. 7, S184 (2005).CrossRefADSGoogle Scholar
  4. 4.
    H.-G. von Ribbeck, M. Brehm, D. W. van der Weide, et al., Optics Expr. 16, 3430 (2008).CrossRefADSGoogle Scholar
  5. 5.
    M. Minsky, Scanning 10, 128 (1988).Google Scholar
  6. 6.
    M. Born and E. Wolf, Principles of Optics (Cambridge Univ. Press, Cambridge, 1999).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  • N. N. Zinov’ev
    • 1
    • 2
  • A. V. Andrianov
    • 1
    • 2
  • A. J. Gallant
    • 2
  • J. M. Chamberlain
    • 2
  • V. N. Trukhin
    • 1
  1. 1.Ioffe Physicotechnical InstituteRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Department of PhysicsDurham UniversityDurhamUK

Personalised recommendations