100 THz bandwidth optical modulators via coherent absorption of metamaterial
100 THz bandwidth optical modulators via coherent absorption of metamaterial
All-optical signal processing is one of the rising fields to eliminate the disadvantages of optical–electrical – optical conversion and continuing advances in terabits per second communications for high-performance computing. All-optical modulation via Coherent Perfect Absorption is the control of the phase or intensity of one light beam by another. A device based on coherent absorption has the advantage of being compact, fast, and intrinsically low power while demonstrating large modulations of light. Using femtosecond laser with variable pulse duration we probe the limits of switching that exploits coherent absorption in nanostructured gold and diamond metamaterials. Higher switching contrast ratios and modulation bandwidth exceeding 100THz has been observed.
Nalla, Venkatram
70e01cd2-f027-457e-930a-251c83b85806
Karvounis, Artemios
878c12bb-c30e-46f4-8c56-86423b41cdba
Valente, João
b1d50ead-5c3d-4416-ad05-3beb1b373146
Sun, Handong
ed2f0363-04d1-40ef-b6c6-f9f5c1e15bc4
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
22 February 2017
Nalla, Venkatram
70e01cd2-f027-457e-930a-251c83b85806
Karvounis, Artemios
878c12bb-c30e-46f4-8c56-86423b41cdba
Valente, João
b1d50ead-5c3d-4416-ad05-3beb1b373146
Sun, Handong
ed2f0363-04d1-40ef-b6c6-f9f5c1e15bc4
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Nalla, Venkatram, Karvounis, Artemios, Valente, João, Sun, Handong and Zheludev, Nikolai
(2017)
100 THz bandwidth optical modulators via coherent absorption of metamaterial.
IPS Meeting 2017, Yale-NUS College, Singapore.
22 - 24 Feb 2017.
Record type:
Conference or Workshop Item
(Poster)
Abstract
All-optical signal processing is one of the rising fields to eliminate the disadvantages of optical–electrical – optical conversion and continuing advances in terabits per second communications for high-performance computing. All-optical modulation via Coherent Perfect Absorption is the control of the phase or intensity of one light beam by another. A device based on coherent absorption has the advantage of being compact, fast, and intrinsically low power while demonstrating large modulations of light. Using femtosecond laser with variable pulse duration we probe the limits of switching that exploits coherent absorption in nanostructured gold and diamond metamaterials. Higher switching contrast ratios and modulation bandwidth exceeding 100THz has been observed.
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Published date: 22 February 2017
Venue - Dates:
IPS Meeting 2017, Yale-NUS College, Singapore, 2017-02-22 - 2017-02-24
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 411210
URI: http://eprints.soton.ac.uk/id/eprint/411210
PURE UUID: da7e19e4-cba5-4be5-b240-7342affad5df
Catalogue record
Date deposited: 15 Jun 2017 16:32
Last modified: 12 Dec 2021 02:46
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Contributors
Author:
Venkatram Nalla
Author:
Artemios Karvounis
Author:
João Valente
Author:
Handong Sun
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