Static two-dimensional aperture coding for multimodal, multiplex spectroscopy

Appl Opt. 2006 May 1;45(13):2965-74. doi: 10.1364/ao.45.002965.


We propose a new class of aperture-coded spectrometer that is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spectral resolution by replacing the slit of conventional dispersive spectrometers with a more complicated spatial filter. We develop a general mathematical framework for deriving the required aperture codes and discuss several appealing code families. Experimental results validate the performance of the instrument.

Publication types

  • Evaluation Study
  • Research Support, N.I.H., Extramural
  • Validation Study

MeSH terms

  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Image Enhancement / instrumentation*
  • Image Enhancement / methods
  • Image Interpretation, Computer-Assisted / methods*
  • Information Storage and Retrieval / methods
  • Refractometry / instrumentation*
  • Refractometry / methods
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Spectrum Analysis / instrumentation*
  • Spectrum Analysis / methods