公开(公告)号：US11346719B2

公开(公告)日：2022-05-31

申请号：US17269432

申请日：2019-07-25

Applicant: POLITECNICO DI MILANO ,  CONSIGLIO NAZIONALE DELLE RICERCHE

Inventor： Cristian Angelo Manzoni ,  Giulio Cerullo ,  Dario Polli ,  Antonio Perri ,  Fabrizio Preda ,  Gianluca Valentini ,  Andrea Bassi

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/453

Abstract: A Fourier-transform hyperspectral imaging system may include an optical imaging system configured to produce an image of an object, and an adjustable birefringent common-path interferometer module comprising a movable birefringent element and configured to produce interfering replicas of an input radiation which are delayed from each other by a phase delay adjustable by the moving birefringent element. The interferometer module may be configured to produce collinear replicas for entering optical rays parallel to said optical axis. The hyperspectral imaging system further comprises a two-dimensional light detector configured to receive the replicas and provide digital images of the object depending on said adjustable phase delay. The system also includes an analysis device configured to perform a Fourier Transform of the digital images to obtain a hyperspectral representation of the object.

公开(公告)号：US11181423B2

公开(公告)日：2021-11-23

申请号：US16605032

申请日：2018-03-19

Applicant: Politecnico di Milano

Inventor： Dario Polli ,  Giulio Cerullo ,  Fabrizio Preda ,  Antonio Perri ,  Jürgen Hauer

IPC: G01J3/45 ,  G01J3/02 ,  G01J3/28 ,  G02B5/30

Abstract: A measurement system of photoluminescence properties of a sample, comprises a radiation source module configured to generate a first radiation, an excitation optical path coupled to the radiation source module, a support structured to support a sample to be optically coupled to excitation optical path and adapted to provide a photoluminescence radiation, and collection path coupled to the sample and configured to propagate the photoluminescence radiation. The system also includes an analysis device configured to receive the photoluminescence radiation and provide data/information on photoluminescence properties of sample. At least one path between the excitation path and the collection path comprises a respective adjustable birefringent common-path interferometer module configured to produce first and second radiations adapted to interfere with each other.