Fourier-transform hyperspectral imaging system

Data di pubblicazione

27-07-2021

Codice

FI.18.033.A

Stato

Licenza a Spin off

Data di priorità

23-08-2018

Fase

Italian and PCT Patent

Titolare

Politecnico di Milano, CNR

Dipartimento

Department of Physics

Autori

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

Descrizione

Hyperspectral imaging is a technique which acquires the whole spectral information from each point of an image. One acquisition approach is based on the concept of the Fourier transform spectroscopy, which relies on optical interferometry. Our innovation consists of the integration of a novel birefringent common-path interferometer into an imaging system. The interferometer is compact, low-cost, with exceptionally good sub-wavelength, long time stability. The resulting imaging system can work in the spectral range from the ultraviolet to the mid-infrared, and can be configured as a camera (e.g. for remote sensing) and as a microscope. The innovation enables hyperspectral imaging with reduced acquisition time and improved spectral resolution.

Campo di applicazione

Analysis of pharmaceutical products, agriculture, quality control of food, identification of materials, mapping of works of art, plastic and metal sorting, remote sensing. The device can be used in the IR band for mining applications, for the search of oil fields, the analysis of forests and crops and forensic analysis of blood and fingerprints.

Vantaggi

This invention has many advantages with respect to common hyperspectral cameras: <p> <ul> <li> High optical throughput, enabling shorter acquisition times <li> Adjustable spectral resolution <li> Broad spectral range, from the UV to the IR <li> The interferometer is more compact, portable and robust than existing interferometers <li> Easy integration both in remote sensing cameras and in microscopes </ul> </p>

Contatto

licensing.tto@polimi.it

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