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Conferences > CLEO_SI > 2023 > STh1O > STh1O.6

HfO2-based Platform for High Index Contrast Visible and UV Integrated Photonics

Oscar Jaramillo, Leonardo Massai, and Karan Mehta

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Abstract

We study HfO2/Al2O3 composites for high-index visible/UV photonics, exhibiting material losses of < 3.0 dB/cm and n = 1.96 at λ = 405 nm. Single-mode waveguides losses are 15.3 ± 1.9 dB/cm for λ = 405 nm (2.3 ± 0.1 dB/cm for λ = 730 nm), likely limited by sidewall roughness scattering.

© 2023 The Author(s)

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