Super-oscillatory lens apparatus and methods
Super-oscillatory lens apparatus and methods
An imaging apparatus is disclosed which uses a super-oscillatory lens to obtain sub-diffraction limit resolution. The super-oscillatory lens is arranged to receive a light beam from a light source, the lens having a pre-defined pattern to spatially modulate the light beam in amplitude and/or phase so that it focuses the light beam to a focus at a first focal point having a full width half maximum of less than half the wavelength. Collection optical elements are arranged to focus the first focal point to a second focal point conjugate to the first focal point. An object for imaging is scanned over the first focal point and a detector is arranged to collect light from a collection region centered on the second focal point.
US20130235180 A1
12 September 2013
Rogers, Edward
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Chad, John
d220e55e-3c13-4d1d-ae9a-1cfae8ccfbe1
Rogers, Edward, Zheludev, Nikolai and Chad, John
(Inventors)
(2013)
Super-oscillatory lens apparatus and methods.
US20130235180 A1.
Abstract
An imaging apparatus is disclosed which uses a super-oscillatory lens to obtain sub-diffraction limit resolution. The super-oscillatory lens is arranged to receive a light beam from a light source, the lens having a pre-defined pattern to spatially modulate the light beam in amplitude and/or phase so that it focuses the light beam to a focus at a first focal point having a full width half maximum of less than half the wavelength. Collection optical elements are arranged to focus the first focal point to a second focal point conjugate to the first focal point. An object for imaging is scanned over the first focal point and a detector is arranged to collect light from a collection region centered on the second focal point.
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Submitted date: 8 March 2012
Published date: 12 September 2013
Organisations:
Optoelectronics Research Centre, Centre for Biological Sciences
Identifiers
Local EPrints ID: 393145
URI: http://eprints.soton.ac.uk/id/eprint/393145
PURE UUID: d02b5502-1f55-4122-9605-3516880dfa36
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Date deposited: 13 May 2016 13:59
Last modified: 12 Dec 2021 02:46
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Contributors
Inventor:
Edward Rogers
Inventor:
Nikolai Zheludev
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