Wavenumber domain reflectometer and method and apparatus for interference confocal microscope that uses a compensation and reduction of background amplitude

摘要

(57) [summary] in-focus image of a region of the subject on, by broadband point source from (90) the reference beam probe beam and (P22B) to (R22B) or generated SOLUTION means of interest (112) and in are identified from out-of-focus image so as to reduce the error of the image information of the target. In this case, it is possible to convert the beam to generate the antisymmetric spatial properties reference beam (R32B), and focused to a line of the region of the probe beam to generate a probe beam in-focus return return the focal case probe beam (P32B I want to generate the anti-symmetric space characteristics). Next, the probe beam is passed through a dispersive element for focusing thereto (P42A) to the line of the detector plane (P42A), a detector system (114) is spatially filtered in-focus return. The reference beam is passed through the dispersive element for focusing thereto (R42A) (R42A), the line of the detector plane is spatially filtered. Is passed (P62A), the dispersive element (P62C) beam from the out-of-focus image point is spatial filter processing. It is spatial filter processing in the detector plane, the reference beam that is spatially filtered by the detector plane (R42C) is interference probe beam and (P42C) in-focus return and (P62C) beam from the out-of-focus image point that. Are spatially filtering in the detector plane, amplitude probe beam (P42C) is the detector as interference term between the probe beam and the reference beam (P42C) of (R42C) in-focus return in-focus return that has been spatial filter processing it is detected by the (114) system. Spatially filtering the detector plane whereby the amplitude of the interference term between the amplitudes reference beam (R42C) out-of-focus image beam and (P62C) is substantially reduced, detection for representing image information of the target I reduces the error of the data generated by the (114) vessel system.