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