Publications by authors named "Christian Hellmann"

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Numerical analysis of micro-optics based single photon sources via a combined physical optics and rigorous simulations approach.
Carlos Jimenez, Christian Hellmann, Andrea Toulouse, Johannes Drozella, Frank Wyrowski

Opt Express· November 2023

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Freeform surface for light shaping by iterative design via Fourier domain.
Irfan Badar, Liangxin Yang, Christian Hellmann, Frank Wyrowski

Opt Express· September 2021

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Wavefront phase representation by Zernike and spline models: a comparison.
Irfan Badar, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· August 2021

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Antiderivative of gradient data by spline model integration.
Irfan Badar, Liangxin Yang, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· August 2021

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Light-shaping design by a fourier pair synthesis: the homeomorphic case.
Liangxin Yang, Irfan Badar, Christian Hellmann, Frank Wyrowski

Opt Express· February 2021

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Generalized far-field integral.
Zongzhao Wang, Olga Baladron-Zorita, Christian Hellmann, Frank Wyrowski

Opt Express· January 2021

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Numerical analysis of tiny-focal-spot generation by focusing linearly, circularly, and radially polarized beams through a micro/nanoparticle.
Rui Shi, Zongzhao Wang, Shih-Te Hung, Christian Hellmann, Frank Wyrowski

Opt Express· January 2021

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Genuine-field modeling of partially coherent X-ray imaging systems.
Antonie Verhoeven, Christian Hellmann, Frank Wyrowski, Mourad Idir, Jari Turunen

J Synchrotron Radiat· September 2020

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Generalized Debye integral.
Zongzhao Wang, Olga Baladron-Zorita, Christian Hellmann, Frank Wyrowski

Opt Express· August 2020

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Vectorial physical-optics modeling of Fourier microscopy systems in nanooptics.
Rui Shi, Norik Janunts, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· July 2020

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Light shaping by freeform surface from a physical-optics point of view.
Liangxin Yang, Irfan Badar, Christian Hellmann, Frank Wyrowski

Opt Express· May 2020

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k-domain method for the fast calculation of electromagnetic fields propagating in graded-index media.
Huiying Zhong, Site Zhang, Olga Baladron-Zorita, Rui Shi, Christian Hellmann

Opt Express· April 2020

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Theory and algorithm of the homeomorphic Fourier transform for optical simulations.
Zongzhao Wang, Olga Baladron-Zorita, Christian Hellmann, Frank Wyrowski

Opt Express· March 2020

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Isolating the Gouy phase shift in a full physical-optics solution to the propagation problem.
Olga Baladron-Zorita, Zongzhao Wang, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· September 2019

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Physical-optics propagation through curved surfaces.
Rui Shi, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· July 2019

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Application of the semi-analytical Fourier transform to electromagnetic modeling.
Zongzhao Wang, Site Zhang, Olga Baladron-Zorita, Christian Hellmann, Frank Wyrowski

Opt Express· May 2019

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Fast propagation of electromagnetic fields through graded-index media.
Huiying Zhong, Site Zhang, Rui Shi, Christian Hellmann, Frank Wyrowski

J Opt Soc Am A Opt Image Sci Vis· April 2018

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Non-paraxial idealized polarizer model.
Site Zhang, Henri Partanen, Christian Hellmann, Frank Wyrowski

Opt Express· April 2018

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Algorithm for the propagation of electromagnetic fields through etalons and crystals.
Site Zhang, Christian Hellmann, Frank Wyrowski

Appl Opt· May 2017

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Propagation of electromagnetic fields between non-parallel planes: a fully vectorial formulation and an efficient implementation.
Site Zhang, Daniel Asoubar, Christian Hellmann, Frank Wyrowski

Appl Opt· January 2016

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