New optical computing approach offers ultrafast processing

0
New optical computing approach offers ultrafast processing
The optical chirality logic gate is made of a material which emit lights with different circular polarization depending on the chirality of the input beams. Credit: Yi Zhang / Aalto University

Logic gates are the fundamental components of computer processors. Conventional logic gates are electronic—they work by shuffling around electrons—but scientists have been developing light-based optical logic gates to meet the data processing and transfer demands of next-generation computing.

New optical chirality logic gates developed by researchers at Aalto University operate about a million times faster than existing technologies, offering ultrafast processing speeds.

The new approach uses circularly polarized light as the input signal. The logic gates are made from crystalline materials that are sensitive to the handedness of a circularly polarized light beam—that is, the light emitted by the crystal depends on the handedness of the input beams. This serves as the basic building block for one type of logic gate (XNOR), and the remaining types of logic gates are built by adding filters or other optical components.

The team also showed that a single device could contain all of their chirality logic gates operating simultaneously in parallel. This is a significant advance over existing logic gates, which can only carry out a single logic operation at a time. Simultaneous parallel logic gates could be used to build complex, multifunctional logic circuits.

Finally, the team demonstrated that the chirality logic gate could be controlled and configured electronically, a necessary step for hybrid electrical/optical computing.

The work is published in the journal Science Advances.

More information:
Yi Zhang et al, Chirality Logic Gates, Science Advances (2022). DOI: 10.1126/sciadv.abq8246. www.science.org/doi/10.1126/sciadv.abq8246

Provided by
Aalto University


Citation:
New optical computing approach offers ultrafast processing (2022, December 9)
retrieved 10 December 2022
from https://techxplore.com/news/2022-12-optical-approach-ultrafast.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

Stay connected with us on social media platform for instant update click here to join our  Twitter, & Facebook

We are now on Telegram. Click here to join our channel (@TechiUpdate) and stay updated with the latest Technology headlines.

For all the latest Technology News Click Here 

Read original article here

Denial of responsibility! Rapidtelecast.com is an automatic aggregator around the global media. All the content are available free on Internet. We have just arranged it in one platform for educational purpose only. In each content, the hyperlink to the primary source is specified. All trademarks belong to their rightful owners, all materials to their authors. If you are the owner of the content and do not want us to publish your materials on our website, please contact us by email – [email protected]. The content will be deleted within 24 hours.
Leave a comment