Fringe 2005 pp 46-53
Experimental Study of Coherence Vortices: Birth and Evolution of Phase Singularities in the Spatial Coherence Function
In summary, we have presented evidence of coherence vortices for the first time and experimentally investigated the properties of phase singularities in the coherence function. Unlike for conventional optical vortices, the intensity for coherence vortices does not vanish, but their contrasts become zero. Furthermore, the proposed method for synthesizing coherence vortices faciliates direct observation of the detailed local properties of an coherence vortex, and introduces new opportunities to explore other topological phenomena for the coherence function.
Unable to display preview. Download preview PDF.
- 2.Schouten H F, Gbur, G, Visser, T D and Wolf E (2003) Phase singularities of the coherence functions in Young’s interference pattern. Opt. Lett. 28(12):968–970.Google Scholar
- 4.Goodman, J W (1968) Introduction to Fourier optics. McGRAW-Hill, New York.Google Scholar
- 7.Wang, W, Kozaki, H, Rosen J and Takeda, M (2002) Synthesis of longitudinal coherence functions by spatial modulation of an extended light source: a new interpretation and experimental verifications. Appl. Opt. 41(10):1962–1971.Google Scholar
- 8.Takeda, M, Wang, W, Duan, Z and Miyamoto, Y (2005) Coherence holography: Holographic Imaging with Coherence Function. Holography 2005, International Conference on Holography, Varna, Bulgaria.Google Scholar
- 9.Larkin, K G, Bone, D J and Oldfield, M A (2001) Natural demodulation of two-dimensional fringe patterns. I. General background of the spiral phase quadrature transform. J. Opt. Soc. Am. A 18(8):1862–1870.Google Scholar