title: Generalization of the Lyot filter and its application to snapshot spectral imaging.
abstract: A snapshot multi-spectral imaging technique is described which employs multiple cascaded birefringent interferometers to simultaneously spectrally filter and demultiplex multiple spectral images onto a single detector array. Spectral images are recorded directly without the need for inversion and without rejection of light and so the technique offers the potential for high signal-to-noise ratio. An example of an eight-band multi-spectral movie sequence is presented; we believe this is the first such demonstration of a technique able to record multi-spectral movie sequences without the need for computer reconstruction.
authors.affiliation: School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH144AS, UK .
authors.forename: Alistair
authors.initials: A
authors.lastname: Gorman
authors.forename: David William
authors.initials: DW
authors.lastname: Fletcher-Holmes
authors.forename: Andrew Robert
authors.initials: AR
authors.lastname: Harvey
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation*; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D013057:Spectrum Analysis / Q000295:instrumentation*