Characterization of High-Frequency Surface Modulation Using the Transport-of-Intensity Equation

Dorrer, C.; Zuegel, J. D.

doi:10.1109/cleo.2007.4453085

2007 Conference on Lasers and Electro-Optics (CLEO) 2007

DOI: 10.1109/cleo.2007.4453085

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Characterization of High-Frequency Surface Modulation Using the Transport-of-Intensity Equation

C. Dorrer

J. D. Zuegel

Abstract: 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.

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Numerical investigation of the influence of wavefront distortion on the laser near-field characteristics

Lü

Fan

et al. 2017

Laser Part. Beams

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The effect of the initial phase distortion of the laser on near-field transmission characteristics in free space is investigated both numerically and theoretically. It is demonstrated and proposed that the near-field modulation and fluence contrast of the output laser beam are changing with the increase of both spatial low- and high-frequency wavefront distortion. The simulation results show that in order to ensure the beam quality in propagation, the Fresnel number should be controlled not <50 generally and the wavefront distortion should also be minimized by controlling both low- and high-frequency phase coefficient not larger than 0.6.

show abstract

Numerical investigation of the influence of wavefront distortion on the laser near-field characteristics

Lü

Fan

et al. 2017

Laser Part. Beams

View full text Add to dashboard Cite

show abstract

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Characterization of High-Frequency Surface Modulation Using the Transport-of-Intensity Equation

Abstract: 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.

Cited by 1 publication

References 3 publications

Numerical investigation of the influence of wavefront distortion on the laser near-field characteristics

Numerical investigation of the influence of wavefront distortion on the laser near-field characteristics

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