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Spatially encoded hyperspectral compressive microscope for ultrabroadband VIS/NIR hyperspectral imaging
- 1.0578064 - ÚFP 2024 RIV US eng J - Journal Article
Klein, Lukáš - Touš, J. - Žídek, Karel
Spatially encoded hyperspectral compressive microscope for ultrabroadband VIS/NIR hyperspectral imaging.
Applied Optics. Roč. 62, č. 15 (2023), s. 4030-4039. ISSN 1559-128X. E-ISSN 2155-3165
R&D Projects: GA ČR(CZ) GA22-09296S; GA MŠMT(CZ) EF16_026/0008390
Institutional support: RVO:61389021
Keywords : sample characterization * hyperspectral imaging * nanoparticles
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.9, year: 2022
Method of publishing: Limited access
https://opg.optica.org/ao/abstract.cfm?uri=ao-62-15-4030
Hyperspectral imaging (HSI) has become a valuable tool in sample characterization in various scientific fields. While many approaches have been tested, specific applications and technology usually lead to only a narrow part of the spectrum being studied. We demonstrate the use of a broadband HSI setup based on compressed sensing capable of capturing data in visible (VIS), near-infrared (NIR), and short-wave infrared (SWIR) spectral regions. Using a tested design, we developed a dual configuration and tested its performance on a set of samples demonstrating spatial resolution and spectral reconstruction. Samples showing a potential use of the setup in optical defect detection are also tested. The setup showcases a dual single-pixel camera configuration capable of combining various detectors with a shared spatial modulation, further improving data efficiency and providing an affordable instrument frombroadband spectral studies.
Permanent Link: https://hdl.handle.net/11104/0347089
Number of the records: 1