Spot image based aberration retrieval method using parametric model of point spread function

Xinhua Chen; Weimin Shen

doi:10.1117/12.904788

30 November 2011 Spot image based aberration retrieval method using parametric model of Point spread function

Xinhua Chen, Weimin Shen

Proceedings Volume 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 82011D (2011) https://doi.org/10.1117/12.904788
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

Spot-image based aberration retrieval method determines aberration directly from optical system's spot image with no extra hardware. In this paper, we propose a new spot-image based aberration retrieval method using the parametric model of point spread function (PSF). This model is built with scalar diffraction integral and its Bessel series representation. In this model, complex amplitude of PSF is represented by linear combination of function series with Zernike coefficients of wave aberration at pupil plane. With this PSF model, intensity distribution of spot image can be calculated without fast Fourier transform or numerical integration. Conjugate gradient method is used in our aberration retrieval routine and the proposed method is simulated with MATLAB. The retrieval results are satisfying for both noise-free and noisy star image.

Citation Download Citation

Xinhua Chen and Weimin Shen "Spot image based aberration retrieval method using parametric model of Point spread function", Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82011D (30 November 2011); https://doi.org/10.1117/12.904788

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