10 September 2003 Near-infrared display materials
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With the increasing use of night vision goggles and night missions, new methods to display information in the infrared region is of interest. We have developed both inorganic and organic electroluminescent thin films which emit at wavelengths between 700 nm and 1.8 μm. These thin films have been incorporated into simple devices and the feasibility of a NIR flat panel display has been demonstrated. Both inorganic zinc sulfide and organic polymers doped with rare earth lanthanide ions have been demonstrated. The wavelength of emission can be varied by choosing the appropriate lanthanide ion, such as dysprosium, erbium, thulium or neodymium. Power densities of ~30 μW/cm2 have been achieved with these devices.
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Paul H. Holloway, Mark R. Davidson, Nigel Dexter Shepherd, Ajay Kale, William Glass, Benjamin S. Harrison, Timothy J. Foley, John R. Reynolds, Kirk S. Schanze, James M. Boncella, Susan Sinnott, David P. Norton, "Near-infrared display materials", Proc. SPIE 5080, Cockpit Displays X, (10 September 2003); doi: 10.1117/12.502611; https://doi.org/10.1117/12.502611

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