Video-rate spectral imaging system for fluorescence microscopy

Bridget K. Ford, Curtis E. Volin, Andrew R. Rouse, Yash Sabharwal, Ronald M. Lynch, Arthur F. Gmitro, Gregory H. Bearman, Michael R. Descour

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


We describe fluorescence spectral-imaging results with the computed-tomography imaging spectrometer (CTIS). This imaging spectrometer is capable of recording spatial and spectral data simultaneously. Consequently, the CTIS can be used to image dynamic phenomena involving multiple, spectrally overlapping fluorescence probes. This system is also optimal for simultaneously monitoring changes in spectral characteristics of multiple probes from different locations within the same sample. This advantage will provide additional information about the physiological changes in function from populations of cells which respond in a heterogeneous manner. The results presented in this paper consist of proof-of-concept imaging results from the CTIS in combination with two different systems of fore-optics. In the first configuration, raw image data were collected using the CTIS coupled to an inverted fluorescence microscope. The second configuration combined the CTIS with a confocal microscope equipped with a fiber-optic imaging bundle, previously for in vivo imaging. Image data were collected at frame rates of 15 frames per second and emission spectra were sampled at 10-nm intervals with a minimum of 29 spectral bands. The smallest spatial sampling interval presented in this paper is 0.7 μm.

Original languageEnglish (US)
Pages (from-to)216-226
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1999
EventProceedings of the 1999 Systems and Technologies for Clinical Diagnostics and Drug Discovery II - San Jose, CA, USA
Duration: Jan 24 1999Jan 25 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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