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.
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
5 April 2018
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 (14), [1707354].
(doi:10.1002/adma.201707354).
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
More information
Accepted/In Press date: 10 January 2018
e-pub ahead of print date: 27 February 2018
Published date: 5 April 2018
Identifiers
Local EPrints ID: 417071
URI: http://eprints.soton.ac.uk/id/eprint/417071
ISSN: 1521-4095
PURE UUID: ce99a932-d91d-4b33-b396-85af24570240
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Date deposited: 18 Jan 2018 17:30
Last modified: 16 Mar 2024 06:06
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Contributors
Author:
Artemios Karvounis
Author:
Venkatram Nalla
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