Sensing the phase and amplitude of electromagnetic waves

Details Sensing the phase and amplitude of electromagnetic waves Sensing the phase and amplitude of electromagnetic waves

G - Physics

01

J

G01J 9/00 (2006.01) G01S 17/89 (2006.01)

Patent

CA 2424139

The invention relates to a device for detecting electromagnetic waves, especially for also detecting the phase and amplitude of electromagnetic waves, using elements that react sensitively to incident electromagnetic waves. The aim of the invention is to provide a method and a device for detecting the phase and amplitude of electromagnetic waves that are as economical as possible and also allow relatively high resolution. To this end, the invention provides that the device has two different pixel types, one pixel type being essentially only sensitive to intensity and the other pixel type being essentially only sensitive to phase. Accordingly, two different pixel types are used in the method, one of which reacts essentially to the intensity of the incoming electromagnetic waves, while the other pixel type is phase-sensitive.

L'invention concerne un dispositif pour détecter des ondes électromagnétiques, en particulier la phase et l'amplitude d'ondes électromagnétiques, au moyen d'éléments qui réagissent de manière sensible à des ondes électromagnétiques incidentes. L'objectif de l'invention est de créer un procédé et un dispositif pour détecter la phase et l'amplitude d'ondes électromagnétiques, qui soient le plus économiques possible tout en permettant d'obtenir une résolution relativement élevée. A cet effet, le dispositif présente deux types de pixels différents, un type de pixel n'étant pratiquement sensible qu'à l'intensité et l'autre type de pixel n'étant pratiquement sensible qu'à la phase. Dans le procédé correspondant, deux types de pixels différents sont utilisés, l'un de ces types réagissant pratiquement à l'intensité des ondes électromagnétiques incidentes, l'autre étant sensible à la phase de ces ondes.

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