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Proceedings Paper

Spectral imaging in a snapshot
Author(s): Andrew Robert Harvey; David William Fletcher-Holmes; Alistair Gorman; Kirsten Altenbach; Jochen Arlt; Nick D. Read
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Paper Abstract

We describe a new filter that simultaneously achieves spectral filtering and image replication to yield a two-dimensional, snapshot spectral imager. Filtering is achieved by spectral demultiplexing; that is without rejection of light; so optical throughput efficiency is, in principle, unity. The principle of operation can be considered as a generalisation of the Lyot filter to achieve multiple bandpasses. We report on the design and experimental implementation of an eight-band system for use in the visible. Proof-of-concept demonstrations are reported for imaging of the ocular fundus and microscopy of fluorescently labelled living cells.

Paper Details

Date Published: 23 March 2005
PDF: 10 pages
Proc. SPIE 5694, Spectral Imaging: Instrumentation, Applications, and Analysis III, (23 March 2005); doi: 10.1117/12.604609
Show Author Affiliations
Andrew Robert Harvey, Heriot-Watt Univ. (United Kingdom)
David William Fletcher-Holmes, Heriot-Watt Univ. (United Kingdom)
Alistair Gorman, Heriot-Watt Univ. (United Kingdom)
Kirsten Altenbach, COSMIC, The Univ. of Edinburgh (United Kingdom)
Jochen Arlt, COSMIC, The Univ. of Edinburgh (United Kingdom)
Nick D. Read, COSMIC, The Univ. of Edinburgh (United Kingdom)


Published in SPIE Proceedings Vol. 5694:
Spectral Imaging: Instrumentation, Applications, and Analysis III
Gregory H. Bearman; Anita Mahadevan-Jansen; Richard M. Levenson, Editor(s)

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