90nm resolution reconstruction from a polychromatic signal using monochromatic phase retrieval techniques
90nm resolution reconstruction from a polychromatic signal using monochromatic phase retrieval techniques
The use of short wavelength sources for microscopy increases resolution via the diffraction limit, and allows the variation in optical contrast, such as that between carbon and water in the 2-4 nm regime, to facilitate useful imaging. However, high material absorption and consequent low phase shift, at such wavelengths limit the availability of focussing optics. For coherent illumination, the electric field just after an object can be reconstructed from its far field diffraction pattern by the process of Coherent Diffractive Imaging (CDI), which solves the well-known phase retrieval problem by iteratively applying constraints in the object and far field (Fourier) planes. Synchrotron sources have achieved 3 nm resolution using this technique.
Parsons, A.D.
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Chapman, R.T.
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Mills, B.
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Butcher, T.J.
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Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
22 May 2011
Parsons, A.D.
4233ec59-883d-433b-ac17-6fd7a3fafa8b
Chapman, R.T.
e74a000f-babe-4fd8-ad9e-64f2ec405724
Mills, B.
05f1886e-96ef-420f-b856-4115f4ab36d0
Butcher, T.J.
77bed03c-ae8f-4e12-8c35-974150a7cc2d
Frey, J.G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Parsons, A.D., Chapman, R.T., Mills, B., Butcher, T.J., Frey, J.G. and Brocklesby, W.S.
(2011)
90nm resolution reconstruction from a polychromatic signal using monochromatic phase retrieval techniques.
European Quantum Electronics Conference (CLEO/Europe-EQEC) 2011, , Munich, Germany.
22 - 26 May 2011.
1 pp
.
(doi:10.1109/CLEOE.2011.5942771).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The use of short wavelength sources for microscopy increases resolution via the diffraction limit, and allows the variation in optical contrast, such as that between carbon and water in the 2-4 nm regime, to facilitate useful imaging. However, high material absorption and consequent low phase shift, at such wavelengths limit the availability of focussing optics. For coherent illumination, the electric field just after an object can be reconstructed from its far field diffraction pattern by the process of Coherent Diffractive Imaging (CDI), which solves the well-known phase retrieval problem by iteratively applying constraints in the object and far field (Fourier) planes. Synchrotron sources have achieved 3 nm resolution using this technique.
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Published date: 22 May 2011
Venue - Dates:
European Quantum Electronics Conference (CLEO/Europe-EQEC) 2011, , Munich, Germany, 2011-05-22 - 2011-05-26
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Local EPrints ID: 442964
URI: http://eprints.soton.ac.uk/id/eprint/442964
PURE UUID: 761f39ed-7c10-45f7-b63c-cf4497f85591
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Date deposited: 05 Aug 2020 16:30
Last modified: 17 Mar 2024 03:08
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Author:
A.D. Parsons
Author:
R.T. Chapman
Author:
T.J. Butcher
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