Abstract: Method and system for measuring a physical parameter of a target region of a medium are provided, wherein: an excitation wave having a periodic modulation over time of a physical characteristic is emitted, a return wave is periodically deflected with a controllable deflecting element so that the deflected wave scans a transducer array, each transducer being associated with a predefined phase range of the periodic modulation, a phase image is recorded during at least one period of the periodic modulation, a phase shift between a periodic modulation of the return wave and the periodic modulation of the excitation wave is determined from the phase image, a physical parameter of the target region is determined from the phase shift.

Abstract: Method and system for measuring a physical parameter of a target region of a medium are provided, wherein: an excitation wave having a periodic modulation over time of a physical characteristic is emitted, a return wave is periodically deflected with a controllable deflecting element so that the deflected wave scans a transducer array, each transducer being associated with a predefined phase range of the periodic modulation, a phase image is recorded during at least one period of the periodic modulation, a phase shift between a periodic modulation of the return wave and the periodic modulation of the excitation wave is determined from the phase image, a physical parameter of the target region is determined from the phase shift.

Abstract: Method for observing an emission of light (14, 15) from a sample (10) in a medium (11) of refractive index nL disposed against a surface (20a) of a transparent support (20) of refractive index nS, greater than nL, the emission of light comprising luminous components oriented toward the support and forming an angle ? with a direction (20b) perpendicular to the surface (20a), said components including supercritical luminous components and critical or subcritical luminous components, the method implementing an observation device (100) capable of collecting at least part of the emission of light, of applying filters (170) to the luminous signal collected; and of transforming the filtered luminous signal into an image zone of the sample (6a, 6b); the method being characterized in that: A modulation of the filtered luminous signal is carried out, in which luminous components arising from the critical or subcritical luminous components of the emission of light are allowed to pass through so as to obtain image zon

Abstract: According to one aspect, the invention relates to a device (100, 200, 300, 400, 500) for measuring the distance, with respect to a reference plane (PREF), from a point of light (Pi) of an object (O). The device comprises a two-dimensional detector (30) comprising a detection plane (PDET) and an imaging system (10) adapted to form an image of a light spot (Pi) situated on an object of interest plane (11) in an image plane (11?) arranged in the vicinity of the detection plane (PDET) or a conjugate plane (P?DET) of the detection plane.

Abstract: According to one aspect, the invention relates to a device (100, 200, 300, 400, 500) for measuring the distance, with respect to a reference plane (PREF), from a point of light (Pi) of an object (O). The device comprises a two-dimensional detector (30) comprising a detection plane (PDET) and an imaging system (10) adapted to form an image of a light spot (Pi) situated on an object of interest plane (11) in an image plane (11?) arranged in the vicinity of the detection plane (PDET) or a conjugate plane (P?DET) of the detection plane.

Abstract: Method for observing an emission of light (14, 15) from a sample (10) in a medium (11) of refractive index nL disposed against a surface (20a) of a transparent support (20) of refractive index ns, greater than nL, the emission of light comprising luminous components oriented toward the support and forming an angle ? with a direction (20b) perpendicular to the surface (20a), said components including supercritical luminous components and critical or subcritical luminous components, the method implementing an observation device (100) capable of collecting at least part of the emission of light, of applying filters (170) to the luminous signal collected; and of transforming the filtered luminous signal into an image zone of the sample (6a, 6b); the method being characterized in that: A modulation of the filtered luminous signal is carried out, in which luminous components arising from the critical or subcritical luminous components of the emission of light are allowed to pass through so as to obtain image zon

Abstract: Method for observing an emission of light from a sample in a medium of refractive index nL disposed against a surface of a transparent support of refractive index nS, greater than nL, the emission of light comprising luminous components oriented toward the support and forming an angle ? and including supercritical luminous components and critical or subcritical luminous components, implementing an observation device applying filters to the signal; and transforming the signal into an image zone of the sample Modulation of the signal is carried out, in which components of the emission of light are allowed to pass through so as to obtain image zones, the modulation pertaining to all or some of the collected signals; and at least one useful image zone of the sample is produced by combining image zones, the combination evidencing differences between the image zones related to the modulation.

Abstract: Method for observing an emission of light from a sample in a medium of refractive index nL disposed against a surface of a transparent support of refractive index nS, greater than nL, the emission of light comprising luminous components oriented toward the support and forming an angle ? and including supercritical luminous components and critical or subcritical luminous components, implementing an observation device applying filters to the signal; and transforming the signal into an image zone of the sample Modulation of the signal is carried out, in which components of the emission of light are allowed to pass through so as to obtain image zones, the modulation pertaining to all or some of the collected signals; and at least one useful image zone of the sample is produced by combining image zones, the combination evidencing differences between the image zones related to the modulation.

Abstract: This invention relates to a fluorescence detection device comprising a support means (101) for supporting a sample (111), a sample excitation means so that a fluorescence is emitted by the sample (111) and a detection means for detecting said fluorescence, said support means (101) comprising a layer having a rough surface (115) for redirecting said fluorescence in a plurality of directions and said detection means covering an observation cone to collect the redirected fluorescence in a plurality of directions.

Abstract: The invention relates to a method for detecting and/or qualifying nanoparticles whose mean size is less than 60 nm, which exhibit a plasmon resonance and are located on the top surface of a flat solid support. A device for carrying out the inventive method and the use thereof are also disclosed.

Abstract: This invention relates to a fluorescence detection device comprising a support means (101) for supporting a sample (111), a sample excitation means so that a fluorescence is emitted by the sample (111) and a detection means for detecting said fluorescence, said support means (101) comprising a layer having a rough surface (115) for redirecting said fluorescence in a plurality of directions and said detection means covering an observation cone to collect the redirected fluorescence in a plurality of directions.