Diffraction imaging characteristics of slit for ultra-short laser pulse

Xiang-yang Yu; Kun-xi Wu; Long-zhao Lu

doi:10.1117/12.2190088

22 August 2015 Diffraction imaging characteristics of slit for ultra-short laser pulse

Xiang-yang Yu, Kun-xi Wu, Long-zhao Lu

Proceedings Volume 9656, International Symposium on Photonics and Optoelectronics 2015; 965602 (2015) https://doi.org/10.1117/12.2190088
Event: International Symposium on Photonics and Optics, 2015, Shanghai, China

Abstract

We propose a simple and concise mathematical method based on the Fraunhofer approximation to analyze the imaging characteristics of slit for broadband light sources. Taking Gaussian-shaped ultra-short laser pulse for example, we investigated the diffraction imaging characteristics of ultra-short light sources through a single-slit and a double-slit. We deduced the mathematical expressions of the intensity distribution of far-field diffraction, and conducted numerical calculation and analysis. It turns out the pulse width of the ultra-short light source plays an important role in the diffraction imaging characteristics of slit. We also provide a quantitative criterion to measure the deviation in terms of far-field diffraction intensity distribution between broadband light source and the ideal monochromatic light source.

Citation Download Citation

Xiang-yang Yu, Kun-xi Wu, and Long-zhao Lu "Diffraction imaging characteristics of slit for ultra-short laser pulse", Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 965602 (22 August 2015); https://doi.org/10.1117/12.2190088

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