Scalable hyperuniform and flexible photonic devices based on dielectric antennas realized by solid state dewetting

Sonia Freddi; Michele Gherardi; Arianna Brescia; Alexey Fedorov; Andrea Chiappini; Monica Bollani

doi:10.1117/12.3025888

20 June 2024 Scalable hyperuniform and flexible photonic devices based on dielectric antennas realized by solid state dewetting

Sonia Freddi, Michele Gherardi, Arianna Brescia, Alexey Fedorov, Andrea Chiappini, Monica Bollani

Author Affiliations +

Proceedings Volume 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV; 130030S (2024) https://doi.org/10.1117/12.3025888
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We present a novel, simple and low-cost protocol for fabricating pure Si, or Si1−xGex or Ge-based, sub-micrometric dielectric antennas with ensuing hybrid integration into different plastic supports. The dielectric antennas are realized exploiting the natural instability of thin solid films to form regular patterns of monocrystalline atomically smooth SiGe nanostructures that cannot be realized with conventional methods. By adjusting the annealing treatment and the semiconductor film thicknesses, different classes of nanoarchitectures can be formed, from elongated and periodic structures to disordered structures with a footprint of just a few tens of nm. This latter disordered case presents a significant suppression of the large-scale fluctuations that are conventionally observed in ordered systems and shows an almost hyperuniform behavior character.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Sonia Freddi, Michele Gherardi, Arianna Brescia, Alexey Fedorov, Andrea Chiappini, and Monica Bollani "Scalable hyperuniform and flexible photonic devices based on dielectric antennas realized by solid state dewetting", Proc. SPIE 13003, Fiber Lasers and Glass Photonics: Materials through Applications IV, 130030S (20 June 2024); https://doi.org/10.1117/12.3025888

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