Keo Scientific designs and manufactures highly sensitive all-sky and narrow-field, wavelength resolved (multi-spectral) imagers for airglow studies. Single-filter and filter-wheel based units are available, with a variety of fields of view ranging from 2 degrees to 180 degrees (fish-eye). VIS, NIR and IR imaging at speeds up to F0.7 is available onto a wide selection of different thermoelectrically deep-cooled (-100 deg C) CCDs. We apply anti-etaloning technologies for imaging in the Near-infrared. For further details, proceed to the Keo Multispectral Imagers for Airglow studies page.

Fabry-Pérot Interferometers

Keo Scientific designs and manufactures a range of Fabry-Pérot Interferometers (FPIs). Both all-sky and scanning Fabry-Pérot interferometers are available for observations of winds and two-dimensional atmospheric parameters in the thermosphere and the mesosphere region by the measurement of Doppler shift and broadening of airglow emission lines. For further details, proceed to the Fabry-Pérot Interferometers page.

Photometers for Airglow Studies

Keo Scientific designs and manufactures a wide range of highly sensitive photometers built around low-noise deep-cooled photomultiplier tubes (PMTs) as well as other more recent photon-counting sensor technologies. Leveraging almost 40 years of actual field experience, we go beyond textbook optics' knowledge and design photometers ideally suited to deal with the many non-obvious issues and problems associated with measuring weak airglow in the presence of continuum sky backgrund. Single-filter, filter-wheel based, and multi-filter beam-split options are available for staring-mode as well as meridian-scanning operations.

Periscope Assemblies

Keo Scientific designs and manufactures articulated first-surface mirror assemblies (periscopes) with a variety of aperture sizes. Ideal for use with narrow field imagers and our photometers and Fabry-Pérot Interferometers (FPIs), or as a Heliostat. For additional details, go to our Keo SkyScan page.

Low Brightness Sources (LBS) and Calibration Services

Keo Scientific designs and builds portable low-brightness light-sources suitable for use in airglow research. We also provide full absolute spectral calibration and imager characterization services using our NIST traceable in-house integrating sphere, custom-built and calibrated especially for the extremely low light-levels encountered in atmospheric and ionospheric research.