• Measuring Sharp Spectral Edges to High Optical Density
    Conference proceedings
    56th Annual Technical Conference Proceedings of the Society of Vacuum Coaters, (2013). Reproduced by permission of the Society of Vacuum Coaters.
    Longpass
    Bandpass
    Capabilities
    Thin-film Metrology
    Filter Design
  • High-Speed Multispectral Confocal Imaging
    Conference proceedings
    Proc. SPIE 8587, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XI, 858715 (February 22, 2013); http://dx.doi.org/10.1117/12.2001883
    Longpass
    Fluorescence Imaging
    Coated Fiber Tips
  • Dual-Band Antireflection Coatings on 3rd Gen Lenses
    Conference proceedings
    Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 80123D (May 20, 2011); http://dx.doi.org/10.1117/12.888100
    IR Filters
    Anti-reflection
    Capabilities
    Thin-film Materials
    Filter Design
    Specialty Coating
  • Filters for Dual Band Infrared Imagers
    Conference proceedings
    Proc. SPIE 7298, Infrared Technology and Applications XXXV, 72982J (May 06, 2009); http://dx.doi.org/10.1117/12.820059
    IR Filters
    Anti-reflection
    Mirror
    Filter Design
    Thin-film Materials
  • Dual Band Antireflection Coatings for the Infrared
    Conference proceedings
    Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 69400T (April 15, 2008); http://dx.doi.org/10.1117/12.780288
    IR Filters
    Anti-reflection
    Capabilities
    Filter Design
    Thin-film Materials
    Specialty Coating
  • Protective optical filter assembly
    Patents
    US Patent # 6,918,673
    Granted July 19, 2005
    Inventors: Robert L. Johnson, Natalia Gorawski, Barry O'Dwyer

    A hermetic filter assembly which improves filter life and environmental stability. The elimination of optical epoxies in this air-spaced filter results in reduced auto-fluorescence, improved parallelism and flatness, and improved heat tolerance. 3rd Millennium filters were originally based on this technology- currently RapidBand filters are made with a similar technique. 

    Bandpass
    Fluorescence Imaging
    Defense
    LIDAR and Optical Communications
    Gas Sensing
    Filter Design