Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging

Alex M. H. Wong; George V. Eleftheriades

doi:10.1109/EuCAP.2014.6902025

Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging

Alex M. H. Wong, George V. Eleftheriades

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

13 Citations (Scopus)

Abstract

Recent interest in superoscillations has led to theoretical investigations as well as proposed applications in imaging and signal processing. In this paper, we elucidate the relationship between superoscillation and the closely related concept of superdirectivity. Key similarities and differences are highlighted, which showcase windows of possibility for practical superoscil-latory waveform design. Thereafter, through the example of the Optical Super-Microscope - a far-field super-resolution microscope, we demonstrate how established antenna array theory can be leveraged to design a practical superoscillatory filter, which enables far-field sub-diffraction optical imaging. We end by reporting our current progress with the Optical Super-Microscope and suggest future directions to improve its imaging capability.

Original language	English
Title of host publication	8th European Conference on Antennas and Propagation, EuCAP 2014
Publisher	IEEE
Pages	1340-1344
ISBN (Electronic)	978-8-8907-0184-9
DOIs	https://doi.org/10.1109/EuCAP.2014.6902025
Publication status	Published - Apr 2014
Externally published	Yes
Event	8th European Conference on Antennas and Propagation, EuCAP 2014 - The Hague, Netherlands Duration: 6 Apr 2014 → 11 Apr 2014

Conference

Conference	8th European Conference on Antennas and Propagation, EuCAP 2014
Place	Netherlands
City	The Hague
Period	6/04/14 → 11/04/14

Research Keywords

antenna array
sub-diffraction imaging
super-resolution
superdirectivity
superoscillation

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10.1109/EuCAP.2014.6902025

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@inproceedings{9ee92371e9b545f68fcb6de2b822fd99,

title = "Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging",

abstract = "Recent interest in superoscillations has led to theoretical investigations as well as proposed applications in imaging and signal processing. In this paper, we elucidate the relationship between superoscillation and the closely related concept of superdirectivity. Key similarities and differences are highlighted, which showcase windows of possibility for practical superoscil-latory waveform design. Thereafter, through the example of the Optical Super-Microscope - a far-field super-resolution microscope, we demonstrate how established antenna array theory can be leveraged to design a practical superoscillatory filter, which enables far-field sub-diffraction optical imaging. We end by reporting our current progress with the Optical Super-Microscope and suggest future directions to improve its imaging capability.",

keywords = "antenna array, sub-diffraction imaging, super-resolution, superdirectivity, superoscillation",

author = "Wong, {Alex M. H.} and Eleftheriades, {George V.}",

year = "2014",

month = apr,

doi = "10.1109/EuCAP.2014.6902025",

language = "English",

pages = "1340--1344",

booktitle = "8th European Conference on Antennas and Propagation, EuCAP 2014",

publisher = "IEEE",

address = "United States",

note = "8th European Conference on Antennas and Propagation, EuCAP 2014 ; Conference date: 06-04-2014 Through 11-04-2014",

}

Wong, AMH & Eleftheriades, GV 2014, Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging. in 8th European Conference on Antennas and Propagation, EuCAP 2014., 6902025, IEEE, pp. 1340-1344, 8th European Conference on Antennas and Propagation, EuCAP 2014, The Hague, Netherlands, 6/04/14. https://doi.org/10.1109/EuCAP.2014.6902025

Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging. / Wong, Alex M. H.; Eleftheriades, George V.
8th European Conference on Antennas and Propagation, EuCAP 2014. IEEE, 2014. p. 1340-1344 6902025.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Superdirectivity-based superoscillatory waveform design

T2 - 8th European Conference on Antennas and Propagation, EuCAP 2014

AU - Wong, Alex M. H.

AU - Eleftheriades, George V.

PY - 2014/4

Y1 - 2014/4

N2 - Recent interest in superoscillations has led to theoretical investigations as well as proposed applications in imaging and signal processing. In this paper, we elucidate the relationship between superoscillation and the closely related concept of superdirectivity. Key similarities and differences are highlighted, which showcase windows of possibility for practical superoscil-latory waveform design. Thereafter, through the example of the Optical Super-Microscope - a far-field super-resolution microscope, we demonstrate how established antenna array theory can be leveraged to design a practical superoscillatory filter, which enables far-field sub-diffraction optical imaging. We end by reporting our current progress with the Optical Super-Microscope and suggest future directions to improve its imaging capability.

AB - Recent interest in superoscillations has led to theoretical investigations as well as proposed applications in imaging and signal processing. In this paper, we elucidate the relationship between superoscillation and the closely related concept of superdirectivity. Key similarities and differences are highlighted, which showcase windows of possibility for practical superoscil-latory waveform design. Thereafter, through the example of the Optical Super-Microscope - a far-field super-resolution microscope, we demonstrate how established antenna array theory can be leveraged to design a practical superoscillatory filter, which enables far-field sub-diffraction optical imaging. We end by reporting our current progress with the Optical Super-Microscope and suggest future directions to improve its imaging capability.

KW - antenna array

KW - sub-diffraction imaging

KW - super-resolution

KW - superdirectivity

KW - superoscillation

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DO - 10.1109/EuCAP.2014.6902025

M3 - RGC 32 - Refereed conference paper (with host publication)

SP - 1340

EP - 1344

BT - 8th European Conference on Antennas and Propagation, EuCAP 2014

PB - IEEE

Y2 - 6 April 2014 through 11 April 2014

ER -

Superdirectivity-based superoscillatory waveform design: A practical path to far-field sub-diffraction imaging

Abstract

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Research Keywords

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