Spectral imaging in a snapshot

Andrew R. Harvey, David W. Fletcher-Holmes, Alistair Gorman, Kirsten Altenbach, Jochen Arlt, Nick D. Read

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)


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.

Original languageEnglish
Article number5694-19
Pages (from-to)110-119
Number of pages10
JournalProgress in Biomedical Optics and Imaging
Publication statusPublished - 2005
EventSpectral Imaging: Instrumentation Applications and Analysis III - San Jose, CA, United States
Duration: 23 Jan 200523 Jan 2005


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