METHOD OF FABRICATING AN OPTICAL ANALYSIS DEVICE COMPRISING A QUANTUM CASCADE LASER AND A QUANTUM DETECTOR

摘要

The invention relates to a method of fabricating an optical device for analysing a scene, comprising an emitter and a detector in the mid-infrared or far-infrared, characterized in that it comprises:the production of a stack of semiconductor layers grown epitaxially on the surface of a semiconductor substrate, certain layers of which are doped;the production of a first, quantum cascade laser emission device (L) emitting an analysis beam in the mid-infrared or far-infrared, from a first level called the emission level, into the stack of semiconductor layers; andthe production of a second, quantum detector device (D) capable of detecting a beam backscattered by the scene to be analysed, at the same level in the stack as the emission level.