Improved Spatial Resolution For Reflection Mode Infrared Spectromicroscopy

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Standard commercial infrared microscopes operating in reflection mode use a mirror to direct the reflected light from the sample to the detector. This mirror blocks about half of the incident light, however, and thus degrades the spatial resolution by reducing the numerical aperture of the objective. Here, we replace the mirror with a 50% beamsplitter to allow full illumination of the objective and retain a way to direct the reflected light to the detector. The improved spatial resolution is demonstrated using a microscope coupled to a synchrotron source.

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Bechtel, Hans A; Martin, Michael C.; May, T. E. & Lerch, Philippe August 13, 2009.

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Standard commercial infrared microscopes operating in reflection mode use a mirror to direct the reflected light from the sample to the detector. This mirror blocks about half of the incident light, however, and thus degrades the spatial resolution by reducing the numerical aperture of the objective. Here, we replace the mirror with a 50% beamsplitter to allow full illumination of the objective and retain a way to direct the reflected light to the detector. The improved spatial resolution is demonstrated using a microscope coupled to a synchrotron source.

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  • WIRMS 2009 5TH INTERNATIONAL WORKSHOP ON INFRARED MICROSCOPY AND SPECTROSCOPY WITH ACCELERATOR BASED SOURCES

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  • Report No.: LBNL-3811E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 986240
  • Archival Resource Key: ark:/67531/metadc1013175

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  • August 13, 2009

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 17, 2017, 6:21 p.m.

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Bechtel, Hans A; Martin, Michael C.; May, T. E. & Lerch, Philippe. Improved Spatial Resolution For Reflection Mode Infrared Spectromicroscopy, article, August 13, 2009; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1013175/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.