Journal
VIBRATIONAL SPECTROSCOPY
Volume 60, Issue -, Pages 10-15Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.vibspec.2011.11.016
Keywords
Synchrotron-based infrared imaging; Focal plane array; Mie scattering; Mouse embryonic stem cells; Microalgae; Cultural heritage
Categories
Funding
- NSF [DMR-0537588]
- NSF-MRI [MRI-0619759]
- NSF-CHE [1112433]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1112433] Funding Source: National Science Foundation
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A new mid-infrared beamline (IRENI) extracting 320 hor. x 25 vert.mrads(2) of radiation providing wide-field illumination for a Bruker Hyperion 3000 IR microscope equipped with an infrared focal plane array (FPA) detector has recently been commissioned at the Synchrotron Radiation Center (SRC) in Stoughton, WI. The swath of radiation from the SRC is extracted as 12 beams and recombined into a 3 x 4 bundle of beams that is refocused onto the sample plane of the infrared microscope illuminating a 40 mu m x 60 mu m sample area. With this new facility chemical images with high diffraction-limited resolution, for wavelengths across the mid-IR concurrently, can be obtained in minutes. Applications of biomedical, biological and cultural heritage interest show the broad applicability of this new facility. The examples presented here include images of fixed single cells, time dependent in vivo measurements of a single cell and layered organic/inorganic materials. (C) 2012 Elsevier B.V. All rights reserved.
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