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Scaled Fractional Fourier Transform for Partially Coherent Beams |
CAI Yang-Jian;LIN Qiang |
Institute of Optics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310028 |
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Cite this article: |
CAI Yang-Jian, LIN Qiang 2003 Chin. Phys. Lett. 20 668-670 |
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Abstract The definition of scaled fractional Fourier transform (SFRT) is extended to partially coherent beams based directly on the cross-spectral density. Based on this formula, an equivalent tensor ABCD law for the SFRT of partially coherent twisted anisotropic Gaussian-Schell model beams is derived. The derived formulae provide a powerful tool for analysing and calculating the SFRT of partially coherent beams. An application example is provided.
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Keywords:
42.30.Kq
42.25.Kb
41.85.Ct
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Published: 01 May 2003
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