KAIST Characterizes Barium Titanate’s Optical Properties for Next-Generation Optical Communications (IMAGE)

The Korea Advanced Institute of Science and Technology (KAIST)

KAIST Characterizes Barium Titanate’s Optical Properties for Next-Generation Optical Communications

Caption

Figure 3. Intrinsic complex refractive index of tetragonal BTO determined over a broad spectral range. (Top) Refractive index and extinction coefficient of single-crystal BTO for ordinary and extraordinary rays, derived from the ultraviolet to the far-infrared. (Middle and bottom left) Optical absorption in the ultraviolet region, where electronic transitions occur (Tauc plot), and the refractive index and birefringence from the visible to the near-infrared, including telecommunication wavelengths. (Middle and bottom right) Polarization-resolved transmittance spectra of a single-crystal sample measured in the infrared transparency window, and the weak absorption coefficients derived from them.

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KAIST

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