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All-optical phase-change memory in a single gallium nanoparticle

All-optical phase-change memory in a single gallium nanoparticle
All-optical phase-change memory in a single gallium nanoparticle
We report on the first demonstration of a quaternary-logical resonatorless optical memory element with
information encoded in the structural phase of a single 80 nm gallium nanoparticle. The size of the
memory element is comparable with bits in next-generation hard disks, and radically smaller than
previously suggested memories exploiting optical resonators. Furthermore, the energy required for
switching the nanoparticle is an order of magnitude less than needed in DVD, DVR, or hard disk
technologies.
nanophotonics, nanoparticle, phase change, memory
0031-9007
153905-[4pp]
Soares, Bruno F.
de2633b2-caaa-4a45-90fa-9a525f6f76f6
Jonsson, Fredrik
53a3fa1c-c987-496b-ab8b-1a9ba67f8346
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Soares, Bruno F.
de2633b2-caaa-4a45-90fa-9a525f6f76f6
Jonsson, Fredrik
53a3fa1c-c987-496b-ab8b-1a9ba67f8346
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Soares, Bruno F., Jonsson, Fredrik and Zheludev, Nikolay I. (2007) All-optical phase-change memory in a single gallium nanoparticle. Physical Review Letters, 98 (15), 153905-[4pp]. (doi:10.1103/PhysRevLett.98.153905).

Record type: Article

Abstract

We report on the first demonstration of a quaternary-logical resonatorless optical memory element with
information encoded in the structural phase of a single 80 nm gallium nanoparticle. The size of the
memory element is comparable with bits in next-generation hard disks, and radically smaller than
previously suggested memories exploiting optical resonators. Furthermore, the energy required for
switching the nanoparticle is an order of magnitude less than needed in DVD, DVR, or hard disk
technologies.

Full text not available from this repository.

More information

Published date: 10 April 2007
Additional Information: The paper has been reviewed in the following publications: 1. Bit by bit, by bit. Research Highlights Nature Photonics 1(6), 310-311 (2007) 2. New look for optical data storage.B. Dumé optics.org, 16 May 2007 3. New look for optical data storage. B. Dumé nanotechweb.org, 14 May 2007 4. Nano memory. S. Lamond Wessex Scene, 30 April 2007 5. Memory devices: Just a phase. A. Sandhu Nature Nanotechn., 20 April 2007 6. Four states are better than two. J. Sherwood Physical Review Focus , 20 April 2007 7. Single gallium nanoparticle displays optical phase-change memory. S. Trohalaki MRS Bulletin 32, 528 (2007)
Keywords: nanophotonics, nanoparticle, phase change, memory

Identifiers

Local EPrints ID: 48248
URI: https://eprints.soton.ac.uk/id/eprint/48248
ISSN: 0031-9007
PURE UUID: b832d602-a5ac-40fe-9dae-10b1e04b074b
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 07 Sep 2007
Last modified: 03 Dec 2019 02:03

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Contributors

Author: Bruno F. Soares
Author: Fredrik Jonsson

University divisions

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