Hyperspectral Imaging Spatial Heterodyne Raman Spectrometer Using a Microlens Array


Reference #: 01402

The University of South Carolina is offering licensing opportunities for Hyperspectral Imaging Spatial Heterodyne Raman Spectrometer Using a Microlens Array


Raman spectroscopy is used to observe vibrational, rotational, and other low-frequency modes in a system and is common technique used in chemistry to provide a structural fingerprint by which molecules can be identified. Raman imaging is the practice of generating detailed chemical images based on a sample’s Raman spectrum. A complete spectrum is acquired at each and every pixel of the image, and then interrogated to generate false color images based on material composition, phase, crystallinity, and strain. For this invention’s application, a microlens array captures spatial, spectral, and hyperspectral Raman imaging using the spatial heterodyne Raman spectrometer (SHRS). Currently, it is not possible to achieve a full 2D image of the sample in which the SHRS achieves a full Raman spectrum for every point in the image with just a single exposure or single laser pulse.

Invention Description:

An array of micro lenses is used to collect light from different spatial regions of a sample and to direct that light to the input aperture of a spatial heterodyne Raman spectrometer (SHRS). Different microlenses illuminate different areas of the SHRS diffraction grating which is spatially imaged onto an imaging detector. The SHRS produces a complete Raman spectrum for each microlens, thus a 3D data cube of 2D spatial image and full wavelength spectrum are produced simultaneously. This allows a complete 3D hyperspectral image to be acquired with a single laser shot or signal acquisition. 

Potential Applications:

Anyone in search of fast and simple Raman imaging to acquire chemical information in context. 

Advantages and Benefits:

It allows the entire 3D data cube of data, 3D hyperspectral Raman image to be acquired simultaneously with both high spatial and high spectral resolution, for example using a single laser shot. And the setup is simple. No other technology exists that can do this. With this new method, time to do a measurement can be cut in half, with one measurement or exposure taking up to a few hours to process.


Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Hyperspectral Imaging With a Spatial Heterodyne Spectrometer Nationalized PCT United States PCT/US2020/050502   9/11/2020     Published
Hyperspectral Imaging with a Spatial Heterodyne Spectrometer Nationalized PCT United States 17/772,265   4/27/2022 4/27/2022 4/27/2023 Filed
For Information, Contact:
Technology Commercialization
University of South Carolina
S. Michael Angel
Jerry Chance Carter
© 2024. All Rights Reserved. Powered by Inteum