Applied Physics B

, Volume 107, Issue 1, pp 103–110 | Cite as

Experimental research on resolution improvement in CW THz digital holography

Article

Abstract

High-resolution continuous-wave terahertz (CW THz) real-time imaging operating at 2.52 THz is demonstrated based on THz digital holographic technique. To eliminate the influence of zero-order diffraction while reducing the recording distance, effective zero-order diffraction suppression methods are studied and compared. The spatial resolution of the imaging system is tested by imaging a self-made Siemens star. When the recording distance is 2.1 cm, the measured resolution can reach 0.245 mm. The experimental results confirm the high imaging performance of the THz digital holography system.

References

  1. 1.
    E. Pickwell, V.P. Wallace, J. Phys. D 39, R301 (2006) ADSCrossRefGoogle Scholar
  2. 2.
    C. Jansen, S. Wietzke, O. Peters, M. Scheller, N. Vieweg, M. Salhi, N. Krumbholz, C. Jördens, T. Hochrein, M. Koch, Appl. Opt. 49, E48 (2010) ADSCrossRefGoogle Scholar
  3. 3.
    B.B. Hu, M.C. Nuss, Opt. Lett. 20, 1716 (1995) ADSCrossRefGoogle Scholar
  4. 4.
    Q. Li, S.-H. Ding, R. Yao, Q. Wang, J. Opt. Soc. Am. A 27, 2381 (2010) ADSCrossRefGoogle Scholar
  5. 5.
    R.J. Mahon, J.A. Murphy, W. Lanigan, Opt. Commun. 260, 469 (2006) ADSCrossRefGoogle Scholar
  6. 6.
    Y. Zhang, W. Zhou, X. Wang, Y. Cui, W. Sun, Strain 44, 380 (2008) CrossRefGoogle Scholar
  7. 7.
    B.A. Knyazev, A.L. Balandin, V.S. Cherkassky, Y.Y. Choporova, V.V. Gerasimov, M.A. Dem’yanenko, D.G. Esaev, A.A. Nikitin, V.V. Pickalov, M.G. Vlasenko, D.G. Rodionov, O.A. Shevchenko, in IRMMW-THz (2010) Google Scholar
  8. 8.
    M.S. Heimbeck, M.K. Kim, D.A. Gregory, H.O. Everitt, Opt. Express 19, 9192 (2011) ADSCrossRefGoogle Scholar
  9. 9.
    S.-H. Ding, Q. Li, Y.-D. Li, Q. Wang, Opt. Lett. 36, 1993 (2011) CrossRefGoogle Scholar
  10. 10.
    V. Kebbel, H.-J. Hartmann, W.P.O. Jüptner, Proc. SPIE 4101, 477 (2000) Google Scholar
  11. 11.
    L. Onural, Appl. Opt. 39, 5929 (2000) ADSCrossRefGoogle Scholar
  12. 12.
    K. Ishizuka, Ultramicroscopy 52, 1 (1993) CrossRefGoogle Scholar
  13. 13.
    A. Stern, B. Javidi, Proc. SPIE 5557, 110 (2004) ADSCrossRefGoogle Scholar
  14. 14.
    A. Stern, B. Javidi, J. Opt. Soc. Am. A 23, 1227 (2006) ADSCrossRefGoogle Scholar
  15. 15.
    C. Liu, Y. Li, X. Cheng, Z. Liu, F. Bo, J. Zhu, Opt. Eng. 41, 2434 (2002) ADSCrossRefGoogle Scholar
  16. 16.
    M. Liebling, T. Blu, M. Unser, J. Opt. Soc. Am. A 21, 367 (2004) ADSCrossRefGoogle Scholar
  17. 17.
    Á.F. Doval, C. Trillo, Proc. SPIE 7387, 1 (2010) Google Scholar

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Q. Li
    • 1
  • S. H. Ding
    • 1
  • Y. D. Li
    • 1
  • K. Xue
    • 1
  • Q. Wang
    • 1
  1. 1.National Key Laboratory of Science and Technology on Tunable LaserHarbin Institute of TechnologyHarbinChina

Personalised recommendations