Michel Doucet

TL;DR: The phase-phase correlator permits sharper correlation peaks, better energy transmission, and higher discrimination than an amplitude-phase correlation, and the dynamic phase response is used to perform efficient kinoform recording.

TL;DR: In this paper, an image projector comprises a plurality of flexible reflective analog modulators (FRAMs), an illumination optics for focusing at least one light source thereon, a conversion optics for converting the variations in divergence of the beams reflected therefrom into variations in intensity, and a scanning mechanism coupled to a projection optics for displaying an image, constructed of intensity modulated light dots or pixels, on a screen.

TL;DR: In this paper, an uncooled microbolometer 160X120 pixel array with nominal pitch of 52 μm has been developed at INO and initial transmission and reflection images showed promise.

TL;DR: The technical components that form the IRXCAM-THz-384 camera and the experimental setup used for active terahertz imaging are described and image results for concealed weapons detection experiments, an exploration of wavelength choice on image quality, and the detection of hidden objects behind drywall are presented.

TL;DR: In this paper, a dental tartar detection system, especially for detection of subgingival tartar (S), comprises a probe (12) adapted to be displaced along a tooth, an illumination system (14) for illuminating with an incident light a region on the tooth, a detection system (16) for collecting the light reflected thereat, and an analysis system (34) for providing a signal to an operator of the probe when measurements on the reflected light in one or more predetermined ranges of wavelengths fall within any predetermined range of values that are characteristic of tartar.