Imaging spectrometry at visible and infrared wavelengths using image replication

Andrew R. Harvey, David W. Fletcher-Holmes, S S Kudesia, Ciaran Beggan

Research output: Contribution to journalArticlepeer-review

15 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 and the design of an eight-band long-wave infrared system.

Original languageEnglish
Article number25
Pages (from-to)190-198
Number of pages9
JournalProceedings of SPIE - the International Society for Optical Engineering
Publication statusPublished - 2004
EventAdvanced Free-Space Optical Communications Techniques and Technologies - London, United Kingdom
Duration: 27 Oct 200428 Oct 2004


Dive into the research topics of 'Imaging spectrometry at visible and infrared wavelengths using image replication'. Together they form a unique fingerprint.

Cite this