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Tunable infrared reflectance by phonon modulation

United States Patent

March 6, 2018
View the Complete Patent at the US Patent & Trademark Office
The present invention pertains to the use of mobile coherent interfaces in a ferroelectric material to interact with optical phonons and, ultimately, to affect the material's optical properties. In altering the optical phonon properties, the optical properties of the ferroelectric material in the spectral range near-to the phonon mode frequency can dramatically change. This can result in a facile means to change to the optical response of the ferroelectric material in the infrared.
Ihlefeld; Jon F. (Charlottesville, VA), Sinclair; Michael B. (Albuquerque, NM), Beechem, III; Thomas E. (Albuquerque, NM)
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
15/ 711,122
September 21, 2017
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.