Wavefront analysis method involving multilateral interferometry with frequency difference

The method comprises positioning a diffraction grating with a two-dimensional meshing on the path of the beam to be analyzed and processing at least two interferograms of at least two different colors, each interferogram being obtained in a plane from two sub-beams with different diffraction orders....

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Bibliographische Detailangaben
Hauptverfasser: Primot, Jerome, Velghe, Sabrina, Guerineau, Nicolas, Haidar, Riad, Tauvy, Michel
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The method comprises positioning a diffraction grating with a two-dimensional meshing on the path of the beam to be analyzed and processing at least two interferograms of at least two different colors, each interferogram being obtained in a plane from two sub-beams with different diffraction orders. The invention can be used to analyze and correct divided wavefronts.