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We present our new article on "Barium Titanate Nanostructures and Thin Films for Photonics", which is part of the Advanced Optical Materials Hall of Fame article series. We review the progress in various applications based on barium titanate nanostructures and thin films for photonics and forsee future technologies that may benefit from this material platform in the near future.

We have managed to make an efficient material for broadband frequency doubling of light using microspheres made of disordered nanocrystals.