Projects per year
Abstract
The ever-growing demand for faster and more efficient data transfer and processing has brought optical computation strategies to the forefront of research in next-generation computing. Here, we report a universal computing approach with the chirality degree of freedom. By exploiting the crystal symmetry–enabled well-known chiral selection rules, we demonstrate the viability of the concept in bulk silica crystals and atomically thin semiconductors and create ultrafast (<100-fs) all-optical chirality logic gates (XNOR, NOR, AND, XOR, OR, and NAND) and a half adder. We also validate the unique advantages of chirality gates by realizing multiple gates with simultaneous operation in a single device and electrical control. Our first demonstrations of logic gates using chiral selection rules suggest that optical chirality could provide a powerful degree of freedom for future optical computing.
Original language | English |
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Article number | eabq8246 |
Journal | Science Advances |
Volume | 8 |
Issue number | 49 |
DOIs | |
Publication status | Published - 7 Dec 2022 |
MoE publication type | A1 Journal article-refereed |
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Ultrafast Data Production with Broadband Photodetectors for Active Hyperspectral Space Imaging
Sun, Z., Cui, L. & Pajunpää, T.
01/01/2021 → 31/12/2023
Project: Academy of Finland: Other research funding
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NOIMO: Novel optical isolators to continue Moore's law in photonics integration
01/09/2020 → 31/08/2024
Project: Academy of Finland: Other research funding
Press/Media
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Data on Science Discussed by a Researcher at Aalto University (Chirality logic gates)
23/12/2022
1 item of Media coverage
Press/Media: Media appearance
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One Million Times Faster Than Current Technology: New Optical Computing Approach Offers Ultrafast Processing
12/12/2022
3 items of Media coverage
Press/Media: Media appearance