OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 3 — Feb. 1, 2012
  • pp: 305–307

Longitudinal-differential interferometry: direct imaging of axial superluminal phase propagation

Myun-Sik Kim, Toralf Scharf, Christoph Etrich, Carsten Rockstuhl, and Hans Herzig Peter  »View Author Affiliations


Optics Letters, Vol. 37, Issue 3, pp. 305-307 (2012)
http://dx.doi.org/10.1364/OL.37.000305


View Full Text Article

Enhanced HTML    Acrobat PDF (429 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We introduce and demonstrate a new interferometric method called longitudinal-differential (LD) interferometry, which measures the spatially resolved phase difference of the scattered field by an object relative to the illumination. This method is combined with a high-resolution interference microscope that allows recording three-dimensional field distributions in amplitude and phase. The method is applied to study the axial phase behavior of Arago spots, an effect observable in low-Fresnel-number systems behind objects with a size comparable to the wavelength. We directly observe the initial phase delay in the Arago spot and prove that the local phase velocity exceeds the speed of light in air. Such LD phase studies are applicable not only to the Arago spot but also to other kinds of light interactions with wavelength-scale objects, e.g., photonic nanojets.

© 2012 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(180.3170) Microscopy : Interference microscopy
(260.1960) Physical optics : Diffraction theory
(260.3160) Physical optics : Interference

ToC Category:
Physical Optics

History
Original Manuscript: October 24, 2011
Manuscript Accepted: November 28, 2011
Published: January 19, 2012

Citation
Myun-Sik Kim, Toralf Scharf, Christoph Etrich, Carsten Rockstuhl, and Hans Herzig Peter, "Longitudinal-differential interferometry: direct imaging of axial superluminal phase propagation," Opt. Lett. 37, 305-307 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-3-305


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. L. G. Gouy and C. R. Hebd, Seances Acad. Sci. 110, 1251 (1890).
  2. B. Richards and E. Wolf, Proc. R. Soc. London 253, 358 (1959). [CrossRef]
  3. J. T. Foley and E. Wolf, Opt. Lett. 30, 1312 (2005). [CrossRef]
  4. T. D. Visser and E. Wolf, Opt. Commun. 283, 3371 (2010). [CrossRef]
  5. X. Pang, T. D. Visser, and E. Wolf, Opt. Commun. 284, 5517 (2011). [CrossRef]
  6. D. Subbarao, Opt. Lett. 20, 2162 (1995). [CrossRef]
  7. M.-S. Kim, T. Scharf, S. Mühlig, C. Rockstuhl, and H. P. Herzig, Appl. Phys. Lett. 98, 191114 (2011). [CrossRef]
  8. M. Vasnetsov, V. Pas’ko, A. Khoroshun, V. Slyusar, and M. Soskin, Opt. Lett. 32, 1830 (2007). [CrossRef]
  9. D. Chauvat, O. Emile, M. Brunel, and A. L. Floch, Phys. Lett. A 295, 78 (2002). [CrossRef]
  10. D. Mignai, A. Ranfagni, and R. Ruggeri, Phys. Rev. Lett. 84, 4830 (2000). [CrossRef]
  11. M.-S. Kim, T. Scharf, and H. P. Herzig, Opt. Express 18, 14319 (2010). [CrossRef]
  12. M.-S. Kim, T. Scharf, S. Mühlig, C. Rockstuhl, and H. P. Herzig, Opt. Express 19, 10206 (2011). [CrossRef]
  13. J. Schwider, R. Burow, K.-E. Elssner, J. Grzanna, R. Spolaczyk, and K. Merkel, Appl. Opt. 22, 3421 (1983). [CrossRef]
  14. P. Hariharan, B. F. Oreb, and T. Eiju, Appl. Opt. 26, 2504 (1987). [CrossRef]
  15. E. Hecht, Optics (Addison-Wesley, 1987), 2nd ed., Chap. 10.
  16. J. E. Harvey and J. L. Forgham, Am. J. Phys. 52, 243 (1984). [CrossRef]

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.

Figures

Fig. 1. Fig. 2. Fig. 3.
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited