High-resolution Fourier-transform infrared chemical imaging with multiple synchrotron beams
Michael J. Nasse,Michael J. Walsh,Eric C. Mattson,Ruben Reininger,Andre Kajdacsy-Balla,Virgilia Macias,Rohit Bhargava,Carol J. Hirschmugl +7 more
TLDR
This advance allows truly diffraction-limited high-resolution imaging over the entire mid-infrared spectrum with high chemical sensitivity and fast acquisition speed while maintaining high-quality SNR.Abstract:
Conventional Fourier-transform infrared (FTIR) microspectroscopic systems are limited by an inevitable trade-off between spatial resolution, acquisition time, signal-to-noise ratio (SNR) and sample coverage. We present an FTIR imaging approach that substantially extends current capabilities by combining multiple synchrotron beams with wide-field detection. This advance allows truly diffraction-limited high-resolution imaging over the entire mid-infrared spectrum with high chemical sensitivity and fast acquisition speed while maintaining high-quality SNR.read more
Citations
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Advances in mid-infrared spectroscopy enabled by supercontinuum laser sources
TL;DR: In this paper , the authors review the current state and perspectives of supercontinuum sources that offer laser-like emission properties and instantaneous broadband spectral coverage comparable to thermal emitters, and identify key competitive advantages of these alternative emitters for mid-IR spectroscopy over state-of-the-art technologies such as thermal sources or quantum cascade lasers.
Journal ArticleDOI
Subcellular mapping of living cells via synchrotron microFTIR and ZnS hemispheres
TL;DR: A new retrofit approach based on the use of ZnS hemispheres is introduced to significantly improve the spatial resolution on live cell FTIR imaging and provides an improved signal-to-noise ratio through the circa 12 μm thin layer of medium, thus allowing detailed distribution of lipids, protein and nucleic acid in the surround of the nucleus of single living cells.
Journal ArticleDOI
Challenges and opportunities in IR nanospectroscopy measurements of energy materials
TL;DR: In this paper, photo thermal induced resonance (PTIR) and scattering scanning near-field optical microscopy (s-SNOM) are utilized in order to identify nanoscale properties and their influence on the functionality of halide-perovskite solar cells and catalytic nanoparticles.
Journal ArticleDOI
Label-free water sensors using hybrid polymer-dielectric mid-infrared optical waveguides.
Pao Tai Lin,Pao Tai Lin,James Giammarco,Nikolay Borodinov,Mykhailo Savchak,Vivek Singh,Lionel C. Kimerling,Dawn T. H. Tan,Kathleen Richardson,Igor Luzinov,Anu Agarwal +10 more
TL;DR: Through the design of a hybrid waveguide structure, the platform made by polymer-dielectric hybrids can be applied to other regions of the mid-IR spectrum to probe other analytes and can ultimately achieve a multispectral sensor on-a-chip.
Journal ArticleDOI
Comments on recent reports on infrared spectral detection of disease markers in blood components
TL;DR: Fourier transform infrared spectroscopy, in particular, promises to be a fast, inexpensive method to search for markers of disease, since it detects variation in the proteome, lipidome and metabolome of biofluids, or activation of immune cells.
References
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Dirac charge dynamics in graphene by infrared spectroscopy
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