WAVEFRONT SENSOR AND ASSOCIATED METROLOGY APPARATUS

Disclosed is a wavefront sensor for measuring a tilt of a wavefront at an array of locations across a beam of radiation, wherein said wavefront sensor comprises a film, for example of Zirconium, having an indent array comprising an indent at each of said array of locations, such that each indent of...

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Bibliographische Detailangaben
Hauptverfasser:	VAN DER POST, Sietse, Thijmen, VAN VOORST, Peter, Danny
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY COLORIMETRY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS RADIATION PYROMETRY TESTING X-RAY TECHNIQUE
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Beschreibung
Zusammenfassung:	Disclosed is a wavefront sensor for measuring a tilt of a wavefront at an array of locations across a beam of radiation, wherein said wavefront sensor comprises a film, for example of Zirconium, having an indent array comprising an indent at each of said array of locations, such that each indent of the indent array is operable to perform focusing of said radiation. Also disclosed is a radiation source and inspection apparatus comprising such a wavefront sensor.