Photonic materials are made up of alternating regions of high and low dielectric constant - a nanostructure that affects the flow of light through the material.
光子材料由介电常数高低不同的材料交替排列组成—这种纳米结构会影响该种材料中光的通过。
Barium titanate (BaTiO3) is a well-known ferroelectric material with high dielectric constant and low losses above room temperature, and it is extensively used in the electric industry.
钛酸钡具有高介电常数、低的介质损耗等优异的性能，广泛地应用于电子工业中。
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