Differential single-pixel camera enabling low-cost microscopy in the near-infrared spectral region

0503446 - ÚFP 2019 RIV US eng J - Journal Article
Denk, Ondřej - Musiienko, A. - Žídek, Karel
Differential single-pixel camera enabling low-cost microscopy in the near-infrared spectral region.
Optics Express. Roč. 27, č. 4 (2019), s. 4562-4571. ISSN 1094-4087
R&D Projects: GA ČR(CZ) GJ17-26284Y; GA MŠMT(CZ) LO1206
Grant - others:GA AV ČR(CZ) StrategieAV21/17
Program: StrategieAV
Institutional support: RVO:61389021
Keywords : compressed sensing * infrared microscopy * differential single-pixel camera
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.669, year: 2019
https://www.osapublishing.org/DirectPDFAccess/6A2DD8FE-0AE0-6D7E-6DBDBCC41728E757_404805/oe-27-4-4562.pdf?da=1&id=404805&seq=0&mobile=no

The optical microscope for wavelengths above 1100 nm is a very important tool for characterizing the microstructure of a broad range of samples. The availability of the technique is, however, limited due to the necessity to use special detectors with temperature stabilization, which implies a high cost of the devices. We present the construction of a low-cost near-infrared microscope (800-1700 nm) based on the principles of compressed sensing. The presented setup is very simple and robust. It requires no temperature stabilization and can be used under standard laboratory conditions. We demonstrate that such a microscope, using a simple pair of balanced photodiodes as a detector, can acquire microscopic images of the sample comparable with those acquired by a standard microscope. Owing to its simplicity, the presented setup can provide access to infrared transmission microscopy to a broad range of laboratories.
Permanent Link: http://hdl.handle.net/11104/0295264