Validity of the perturbation model for the propagation of MSF structure in 2D
| Autor: | Miguel A. Alonso, Greg Forbes, Kevin Liang |
|---|---|
| Přispěvatelé: | University of Rochester [USA], Macquarie University, MOSAIC (MOSAIC), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), École Centrale de Marseille (ECM), Aix Marseille Université (AMU), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
Wavefront
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Fresnel zone Geometrical optics business.industry Exit pupil Computer science Astrophysics::Instrumentation and Methods for Astrophysics Perturbation (astronomy) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Optics 0103 physical sciences Applied mathematics Spatial frequency 0210 nano-technology business |
| Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2019, 27 (3), pp.3390. ⟨10.1364/oe.27.003390⟩ Optics Express, 2019, 27 (3), pp.3390. ⟨10.1364/oe.27.003390⟩ |
| ISSN: | 1094-4087 |
| Popis: | International audience; Assessment of the performance degradation caused by the mid-spatial frequency (MSF) structure on optical surfaces often relies on a perturbation method that dovetails with the familiar sequence of models based on geometrical and physical optics. In the case of imaging systems, the perturbative step yields estimates of wavefronts in the exit pupil which are, in turn, used to extract performance measures such as MTF, PSF, and Strehl ratio. To date, the validity of that perturbation appears to be poorly understood. We present methods to estimate the errors of this approach and thereby arrive at a rule of thumb for its accuracy: the error is approximately equal to the RMS of the MSF structure at its source multiplied by the square of the ratio between a particular Fresnel zone size and a characteristic length of the MSF structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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