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Experimental determination of electric cross-spectral density matrix and generalized Stokes parameters for a laser
Bhaskar Kanseri1, Hem Chandra Kandpal
1Optical Radiation Standards, National Physical Laboratory, New Delhi, India.
Abstract:
We report an experimental method to determine the elements of the electric cross-spectral density matrix for laser light. For this purpose an additional setup consisting of mirrors and reflecting prisms is utilized with the conventional Young's interferometer to overcome existing experimental limitations. The generalized Stokes parameters, which are the characteristics of two spatial points of the electromagnetic field, are also obtained for a pair of points. The knowledge of these two quantities might be useful in determining the change in polarization properties of light in propagation and their effects in optical measurements.

