John Mark Harlander

Shimmer on STS-112: Development and Proof-of-Concept Flight

Abstract : The Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER), which is based on a new interferometric technique called Spatial Heterodyne Spectroscopy (SHS), flew on the Space Shuttle Atlantis mission STS-112 in October 2002. SHS has the advantages of high throughput, high spectral resolution, small size, low mass, all in a rugged instrument with no moving optical components. The SHS proof-of-principal flight successfully demonstrated the suitability of SHS for spaceflight applications where high spectral resolution measurements over a relatively narrow spectral band are required. In addition, the highest spectral resolution measurement of middle atmospheric hydroxyl (OH) solar resonance fluorescence ever achieved was made by SHIMMER during this mission.

The Doppler Asymmetric Spatial Heterodyne (DASH) Interferometer

Doppler Asymmetric Spatial Heterodyne Spectroscopy (DASH) is being developed for atmospheric Doppler wind measurements. This paper discusses the technique, the advantages and tradeoffs of DASH.

The Mark 1 Spatial Heterodyne Spectrometer

Design features of the broadband, high resolution Mark 1 Spatial Heterodyne Spectrometer (SHS) which eliminate aberrations in the fringe imaging system, suppress ghosts, and enhance thermal stability are reviewed. Applications of this SHS are described.

Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER): Results from the First Satellite Borne SHS Spectrometer

SHIMMER was launched in 2007 on board the STPSat-1 satellite. We present a brief look at the spectroscopic data analysis and summarize recent results from the mesospheric hydroxyl (OH) and polar mesospheric cloud (PMC) observations.

A near-UV Spatial Heterodyne Spectrometer for Interstellar [OII] Emission Line Studies

Using a newly developed spatial heterodyne spectrometer, we have obtained the first radial velocity resolved observations of interstellar 3727 A emission and confirmed the superb performance of the technique for observing spatially extended faint sources.

The SHIMMER Instruments: Spatial Heterodyne Imagers for Space Based Remote Sensing of the Atmosphere

SHIMMER (Spatial Heterodyne Imager for Mesospheric Radicals) denotes a family of SHS instruments for space based UV remote sensing of the atmosphere. Two future satellite missions, a shuttle mission and their objectives are presented here.