Advanced materials for transient photonics (Invited Paper)

Transient photonics [1] encompass optical devices that can vanish on demand, after stable operation. In this talk, I will present a platform for transient photonics based on Mg and MgO, materials that dissolve in water at ambient environment [2]. We show vivid color pixels covering a large portion of the sRGB [3] and multi-wavelength absorbers [4], important for applications ranging from encryption to eco-friendly displays. Refs: [1] ACS Photonics 6, 272 (2019). [2] Optical Materials Express 11, 1555 (2021). [3] Adv. Optical Materials 10, 2200159 (2022). [4] ACS Applied Optical Materials 1, 825 (2023).