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Ultrafast coherent absorption in diamond metamaterials

Ultrafast coherent absorption in diamond metamaterials
Ultrafast coherent absorption in diamond metamaterials
Diamond is introduced as a material platform for visible/near-infrared photonic metamaterials, with a nanostructured polycrystalline diamond metasurface only 170 nm thick providing an experimental demonstration of coherent light-by-light modulation at few-optical-cycle (6 fs) pulse durations. “Coherent control” of absorption in planar (subwavelength-thickness) materials has emerged recently as a mechanism for high-contrast all-optical gating, with a speed of response that is limited only by the spectral width of the absorption line. It is shown here that a free-standing diamond membrane structured by focused ion beam milling can provide strong, spectrally near-flat absorption over a visible to near-infrared wavelength range that is wide enough (wider than is characteristically achievable in plasmonic metal metasurfaces) to facilitate coherent modulation of ultrashort optical pulses comprising only a few oscillations of electromagnetic field.
1521-4095
1-6
Karvounis, Artemios
878c12bb-c30e-46f4-8c56-86423b41cdba
Nalla, Venkatram
70e01cd2-f027-457e-930a-251c83b85806
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, Nikolai I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Karvounis, Artemios
878c12bb-c30e-46f4-8c56-86423b41cdba
Nalla, Venkatram
70e01cd2-f027-457e-930a-251c83b85806
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, Nikolai I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Karvounis, Artemios, Nalla, Venkatram, MacDonald, Kevin F. and Zheludev, Nikolai I. (2018) Ultrafast coherent absorption in diamond metamaterials. Advanced Materials, 30, 1-6. (doi:10.1002/adma.201707354).

Record type: Article

Abstract

Diamond is introduced as a material platform for visible/near-infrared photonic metamaterials, with a nanostructured polycrystalline diamond metasurface only 170 nm thick providing an experimental demonstration of coherent light-by-light modulation at few-optical-cycle (6 fs) pulse durations. “Coherent control” of absorption in planar (subwavelength-thickness) materials has emerged recently as a mechanism for high-contrast all-optical gating, with a speed of response that is limited only by the spectral width of the absorption line. It is shown here that a free-standing diamond membrane structured by focused ion beam milling can provide strong, spectrally near-flat absorption over a visible to near-infrared wavelength range that is wide enough (wider than is characteristically achievable in plasmonic metal metasurfaces) to facilitate coherent modulation of ultrashort optical pulses comprising only a few oscillations of electromagnetic field.

Text diamond fs coherent control accepted manuscript - Accepted Manuscript
Restricted to Repository staff only until 27 February 2019.
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More information

Accepted/In Press date: 10 January 2018
Published date: 27 February 2018

Identifiers

Local EPrints ID: 417071
URI: https://eprints.soton.ac.uk/id/eprint/417071
ISSN: 1521-4095
PURE UUID: ce99a932-d91d-4b33-b396-85af24570240
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Nikolai I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 18 Jan 2018 17:30
Last modified: 06 Jun 2018 13:10

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Contributors

Author: Venkatram Nalla

University divisions

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