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3 October 2024 On-chip ultrafast all-optical transistor
Pietro Tassan, Bartos Chmielak, Michael Forster, Thorsten Wahlbrink, Ullrich Scherf, Rainer Mahrt, Darius Urbonas, Thilo Stoeferle
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Proceedings Volume PC13110, Active Photonic Platforms (APP) 2024; PC131100I (2024) https://doi.org/10.1117/12.3027928
Event: Nanoscience + Engineering, 2024, San Diego, California, United States
Abstract
The possibility of processing information with light has been the driving force behind the quest for all-optical logic gates. Leveraging silicon photonics processing technology, we show optically excited exciton-polariton condensation at ambient conditions in fully integrated metamaterial-based high-index contrast grating microcavities filled with an organic polymer. By coupling two resonators and exploiting seeded polariton condensation, we demonstrate ultrafast all-optical transistor action on a picosecond timescale and cascadability of the device concept. This paves the way for more complex ultrafast all-optical logic circuits operating at room temperature.
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Pietro Tassan, Bartos Chmielak, Michael Forster, Thorsten Wahlbrink, Ullrich Scherf, Rainer Mahrt, Darius Urbonas, and Thilo Stoeferle "On-chip ultrafast all-optical transistor", Proc. SPIE PC13110, Active Photonic Platforms (APP) 2024, PC131100I (3 October 2024); https://doi.org/10.1117/12.3027928
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KEYWORDS
Transistors
Ultrafast phenomena
Circuit switching
All optical switching
Optical microcavities
Photoactive materials
Picosecond phenomena
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