Spatially encoded hyperspectral compressive microscope for ultrabroadband VIS/NIR hyperspectral imaging

0578064 - ÚFP 2024 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA22-09296S; GA MŠMT(CZ) EF16_026/0008390
Institucionální podpora: RVO:61389021
Klíčová slova: sample characterization * hyperspectral imaging * nanoparticles
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 1.9, rok: 2022
Způsob publikování: Omezený přístup
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.
Trvalý link: https://hdl.handle.net/11104/0347089