Abstract
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 from broadband spectral studies.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Franco Rivas, Francisco Pérez, Claudio Sandoval, Ignacio Sanhueza, Benjamín Sepúlveda, Jorge Yañez, and Sergio Torres
Appl. Opt. 62(12) 2970-2977 (2023)
Lukáš Klein, Arne S Kristoffersen, Jan Touš, and Karel Žídek
Opt. Express 30(9) 15708-15720 (2022)
Zhe Jiang, Zekuan Yu, Yue Yu, Zhiyu Huang, Qiushi Ren, and Changhui Li
Appl. Opt. 58(4) 850-862 (2019)