Compressive Hyperspectral Microscopy of Scattering and Fluorescence of Nanoparticles

dc.citation.firstpage2614en_US
dc.citation.issueNumber5en_US
dc.citation.journalTitleThe Journal of Physical Chemistry Cen_US
dc.citation.lastpage2626en_US
dc.citation.volumeNumber126en_US
dc.contributor.authorXu, Yiboen_US
dc.contributor.authorLu, Liyangen_US
dc.contributor.authorGiljum, Anthonyen_US
dc.contributor.authorPayne, Courtney M.en_US
dc.contributor.authorHafner, Jason H.en_US
dc.contributor.authorRinge, Emilieen_US
dc.contributor.authorKelly, Kevin F.en_US
dc.date.accessioned2022-03-07T16:09:36Zen_US
dc.date.available2022-03-07T16:09:36Zen_US
dc.date.issued2022en_US
dc.description.abstractHyperspectral imaging in optical microscopy is of importance in the study of various submicron physical and chemical phenomena. However, its practical application is still challenging because the additional spectral dimension increases the number of sampling points to be independently measured compared to two-dimensional (2D) imaging. Here, we present a hyperspectral microscopy system through passive illumination approach based on compressive sensing (CS) using a spectrometer with a one-dimensional (1D) detector array and a digital micromirror device (DMD). The illumination is patterned after the sample rather than on it, making this technique compatible with both dark-field and bright-field imaging. The DMD diffraction issue resulting from this approach has been overcome by a novel striped DMD pattern modulation method. In addition, a split pattern method is developed for increasing the spatial resolution when employing the DMD pattern modulation. The efficacy of the system is demonstrated on nanoparticles using two model systems: extended plasmonic metal nanostructures and fluorescent microspheres. The compressive hyperspectral microscopic system provides a fast, high dynamic range, and enhanced signal-to-noise ratio (SNR) platform that yields a powerful and low-cost spectral analytical system to probe the optical properties of a myriad of nanomaterial systems. The system can also be extended to wavelengths beyond the visible spectrum with greatly reduced expense compared to other approaches that use 2D array detectors.en_US
dc.identifier.citationXu, Yibo, Lu, Liyang, Giljum, Anthony, et al.. "Compressive Hyperspectral Microscopy of Scattering and Fluorescence of Nanoparticles." <i>The Journal of Physical Chemistry C,</i> 126, no. 5 (2022) American Chemical Society: 2614-2626. https://doi.org/10.1021/acs.jpcc.1c08359.en_US
dc.identifier.doihttps://doi.org/10.1021/acs.jpcc.1c08359en_US
dc.identifier.urihttps://hdl.handle.net/1911/112017en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.en_US
dc.titleCompressive Hyperspectral Microscopy of Scattering and Fluorescence of Nanoparticlesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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