Abstract:
Apparatus for carrying out spatially offset Raman spectroscopy (SORS) is described. The apparatus comprises a rotatable prism arranged such that a spatial offset between an entry region and a collection region at a sample is dependent upon an angle of rotation of the prism.
Abstract:
Apparatus for carrying out spatially offset Raman spectroscopy (SORS) is described. The apparatus comprises a rotatable prism arranged such that a spatial offset between an entry region and a collection region at a sample is dependent upon an angle of rotation of the prism.
Abstract:
Disclosed are apparatus and methods for inspecting or measuring a specimen. A system comprises an illumination channel for generating and deflecting a plurality of incident beams to form a plurality of spots that scan across a segmented line comprised of a plurality of scan portions of the specimen. The system also includes one or more detection channels for sensing light emanating from a specimen in response to the incident beams directed towards such specimen and collecting a detected image for each scan portion as each incident beam's spot is scanned over its scan portion. The one or more detection channels include at least one longitudinal side channel for longitudinally collecting a detected image for each scan portion as each incident beam's spot is scanned over its scan portion.
Abstract:
A system (40) and method for performing laser plasma spectroscopy on a surface (20) of a component (12), particularly to detect, analyze, and determine the extent of deposit build up on turbomachine components (12) protected by coatings (20) that are susceptible to damage from infiltration of deposits. The system (40) includes a laser energy source (44) and a probe (50) interconnected with the laser energy source (44) to receive a laser beam therefrom and then direct the laser beam onto the surface (20) of the component (12) and scan an area of the surface (20) while the component (12) remains stationary. The probe is further configured to collect radiation emitted from a laser-induced plasma generated by the laser beam at the surface (20) of the component (12). The system (40) is further equipped to transmit the radiation from the probe (50) and spectrally analyze the radiation. The system (40) makes use of laser spectroscopy (LPS), also known as laser-induced breakdown spectroscopy (LIBS) and laser-induced plasma spectroscopy (LIPS).
Abstract:
A system (40) and method for performing laser plasma spectroscopy on a surface (20) of a component (12), particularly to detect, analyze, and determine the extent of deposit build up on turbomachine components (12) protected by coatings (20) that are susceptible to damage from infiltration of deposits. The system (40) includes a laser energy source (44) and a probe (50) interconnected with the laser energy source (44) to receive a laser beam therefrom and then direct the laser beam onto the surface (20) of the component (12) and scan an area of the surface (20) while the component (12) remains stationary. The probe is further configured to collect radiation emitted from a laser-induced plasma generated by the laser beam at the surface (20) of the component (12). The system (40) is further equipped to transmit the radiation from the probe (50) and spectrally analyze the radiation. The system (40) makes use of laser spectroscopy (LPS), also known as laser-induced breakdown spectroscopy (LIBS) and laser-induced plasma spectroscopy (LIPS).