Spectral imaging at high-definition and high speed in the mid-infrared

Spectral imaging in the mid-infrared (MIR) range provides simultaneous morphological and chemical information of a wide variety of samples. However, current MIR technologies struggle to produce high-definition images over a broad spectral range at acquisition rates that are compatible with real-time...

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Bibliographic Details
Published inarXiv.org
Main Authors Knez, David, Toulson, Benjamin W, Chen, Anabel, Ettenberg, Martin H, Nguyen, Hai, Potma, Eric O, Fishman, Dmitry A
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 11.08.2022
Subjects
Cubes
High definition
Image acquisition
Image processing
Image reconstruction
Imaging techniques
Infrared imaging
Infrared spectra
Photon absorption
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Summary:Spectral imaging in the mid-infrared (MIR) range provides simultaneous morphological and chemical information of a wide variety of samples. However, current MIR technologies struggle to produce high-definition images over a broad spectral range at acquisition rates that are compatible with real-time processes. We present a novel spectral imaging technique based on non-degenerate two-photon absorption of temporally chirped optical MIR pulses. This new approach avoids complex image processing or reconstruction and enables high-speed acquisition of spectral data cubes [xyw] at high pixel density in under a second.
ISSN:2331-8422