The transport-of-intensity equation is used to describe the influence of small-scale phase fluctuations present on the surface of optical elements, which can be characterized from the diffraction-induced modifications of the intensity of a coherent source.
© 2007 OSA
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
C. Dorrer and J. D. Zuegel, "Characterization of High-Frequency Surface Modulation Using the Transport-of-Intensity Equation," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CTuT6.