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.
|Number of pages||10|
|Journal||Progress in Biomedical Optics and Imaging|
|Publication status||Published - 2005|
|Event||Spectral Imaging: Instrumentation Applications and Analysis III - San Jose, CA, United States|
Duration: 23 Jan 2005 → 23 Jan 2005