论文信息 - Experimental generation of Bessel-Gauss coherence functions

Experimental generation of Bessel-Gauss coherence functions

We experimentally generate the Bessel-Gauss coherence functions using the cross-correlations between the two speckle patterns obtained using the perfect optical vortices (POV) of different orders. POV beams are generated using the Fourier transform of Bessel-Gauss beams by displaying the axicon hologram on spatial light modulator. A ground glass plate is used for scattering POV beams and the speckles are recorded. The cross-correlation function of two speckle patterns is Bessel-Gauss functions whose order is given by the difference in the orders of two POV beams used for scattering. The auto-correlation function of these speckles is Bessel-Gauss function of order zero.

Yoko Miyamoto | R. P. Singh | Salla Gangi Reddy

[1] Greg Gbur,et al. Phase singularities of the coherence functions in Young's interference pattern. , 2003, Optics letters.

[2] T. Visser,et al. Phase singularities and coherence vortices in linear optical systems , 2005 .

[3] Non-diffracting speckles of a perfect vortex beam , 2016 .

[4] Sophie LaRochelle,et al. Design, fabrication and validation of an OAM fiber supporting 36 states. , 2014, Optics express.

[5] Wei Wang,et al. Experimental study of coherence vortices: local properties of phase singularities in a spatial coherence function. , 2006, Physical review letters.

[6] A. J. Jesus-Silva,et al. Characterizing coherence vortices through geometry. , 2015, Optics letters.