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Diffraction-limited Hyperspectral Mid-infrared Single-pixel Microscopy by Alexander Ebner; Paul Gattinger; Ivan Zorin; Lukas Krainer; Christian Rankl; Markus Brandstetter is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Diffraction-limited Hyperspectral Mid-infrared Single-pixel Microscopy about?

## Abstract In this contribution, we demonstrate a wide-field hyperspectral mid-infrared (MIR) microscope based on multidimensional single-pixel imaging (SPI). The microscope employs a high brightness MIR supercontinuum source for broadband (1.55 $$\upmu \hbox {m}$$ μ m –4.5 $$\upmu \hbox {m}$$ μ m ) sample illumination. Hyperspectral imaging capability is achieved by a single micro-opto-electro-mechanical digital micromirror device (DMD), which provides both spatial and spectral differentiation. For that purpose the operational spectral bandwidth of the DMD was significantly extended into the MIR spectral region. In the presented design, the DMD fulfills two essential tasks. On the one hand, as standard for the SPI approach, the DMD sequentially masks captured scenes enabling diffraction-limited imaging in the tens of millisecond time-regime. On the other hand, the diffraction at the micromirrors leads to dispersion of the projected field and thus allows for wavelength selection without the application of additional dispersive optical elements, such as gratings or prisms. In the experimental part, first of all, the imaging and spectral capabilities of the hyperspectral microscope

Who reads Diffraction-limited Hyperspectral Mid-infrared Single-pixel Microscopy?

Author

Alexander Ebner; Paul Gattinger; Ivan Zorin; Lukas Krainer; Christian Rankl; Markus Brandstetter

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)