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Lensless focusing with subwavelength resolution by an array of nanoholes

Lensless focusing with subwavelength resolution by an array of nanoholes
Lensless focusing with subwavelength resolution by an array of nanoholes
We provide the first experimental evidence of focusing light into subwavelength spots by a 2-dimensional planar photonic structure. When a quasi-periodic array of nanoholes was illuminated with coherent light sources, it created very rich diffraction patterns at different heights to the array. At specific heights, we observed diffraction patterns containing subwavelength spots. The ability to focus light into subwavelength spots is of fundamental importance for applications in a wide range of areas, e.g. microscopy, photo lithography, data storage etc.
Huang, Fu Min
1e6fc160-8f6c-48f9-ad58-b993047b5a30
Chen, Yifang
fb868aa4-ecb4-4203-a0a8-88c2195a2bae
García de Abajo, F.Javier
07e3df24-ab3b-4a70-af18-188db066aa1a
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6
Huang, Fu Min
1e6fc160-8f6c-48f9-ad58-b993047b5a30
Chen, Yifang
fb868aa4-ecb4-4203-a0a8-88c2195a2bae
García de Abajo, F.Javier
07e3df24-ab3b-4a70-af18-188db066aa1a
Zheludev, Nikolay
32fb6af7-97e4-4d11-bca6-805745e40cc6

Huang, Fu Min, Chen, Yifang, García de Abajo, F.Javier and Zheludev, Nikolay (2007) Lensless focusing with subwavelength resolution by an array of nanoholes. Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany. 17 - 22 Jun 2007. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

We provide the first experimental evidence of focusing light into subwavelength spots by a 2-dimensional planar photonic structure. When a quasi-periodic array of nanoholes was illuminated with coherent light sources, it created very rich diffraction patterns at different heights to the array. At specific heights, we observed diffraction patterns containing subwavelength spots. The ability to focus light into subwavelength spots is of fundamental importance for applications in a wide range of areas, e.g. microscopy, photo lithography, data storage etc.

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More information

Published date: June 2007
Venue - Dates: Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany, 2007-06-17 - 2007-06-22

Identifiers

Local EPrints ID: 47819
URI: https://eprints.soton.ac.uk/id/eprint/47819
PURE UUID: 8dd67fb1-b5f7-480a-987c-a41922877689
ORCID for Nikolay Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 10 Aug 2007
Last modified: 14 Mar 2019 01:53

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Contributors

Author: Fu Min Huang
Author: Yifang Chen
Author: F.Javier García de Abajo

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