TiO2 photonics

The titanium dioxide (TiO2) is a low cost material compared to III-V semiconductors. It handles high power intensities and is non-toxic compared to chalcogenide glasses. It is transparent from the visible to the mid-infrared wavelength of interest in our project. Regarding the nonlinearity, we can expect at least 30 times better than silica . Moreover, it presents no TPA at standard telecommunications wavelength. This is why we believe that the titanium dioxide represents the perfect candidate for the next generation of telecommunication and all-optical processing. 

Latest Publications : 


Andrieux, A.; Mennemanteuil, M.-M.; Geoffroy, N.; Emo, M.; Markey, L.; Hammani, K. Optimized ICPCVD-Based TiO2 for Photonics. Materials 2022, 15, 2578. https://doi.org/10.3390/ma15072578 

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K. Hammani, L. Markey, M. Lamy, B. Kibler, J. Arocas, J. Fatome, A. Dereux,  J.-C Weeber and C. Finot, " Octave Spanning Supercontinuum in Titanium Dioxide Waveguides". Appl. Sci, 8, 543 (2018 - Feature Paper).

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M. Lamy, K. Hammani, J. Arocas, C. Finot, and J.-C. Weeber, "Broadband etching-free metal grating couplers embedded in titanium dioxide waveguides," Opt. Lett. 42, 2778-2781 (2017).  

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M. Lamy, C. Finot, J. Fatome, J. Arocas, J.-C. Weeber, and K. Hammani, "Demonstration of High-Speed Optical Transmission at 2 µm in Titanium Dioxide Waveguides," Appl. Sci. 7(2017).

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applsci-07-00631-v2.pdf