SPINR: high-resolution two-dimensional spectral imaging

Yan Betremieux; Timothy A. Cook; Daniel M. Cotton; Supriya Chakrabarti

doi:10.1117/12.147629

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7 July 1993 SPINR: high-resolution two-dimensional spectral imaging

Yan Betremieux, Timothy A. Cook, Daniel M. Cotton, Supriya Chakrabarti

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Proceedings Volume 2008, Instrumentation for Magnetospheric Imagery II; (1993) https://doi.org/10.1117/12.147629
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

We describe a novel technique which enables us to conduct two-dimensional imaging spectroscopy using a one-dimensional imaging spectrometer. A typical imaging spectrometer obtains a series of one-dimensional monochromatic images containing the entire field of view, but the spatial information in the dispersion direction is lost. By rotating the instrument (hence rotating the field of view) we compile a series of time dependent profiles. We use a numerical tomographic reconstruction method to recover the second spatial dimension and thereby obtain two-dimensional monochromatic images of the field of view. This technique is more sensitive and hence collects a full two-dimensional image more quickly than a conventional push-broom scan. We present the results of numerical simulations and discuss the prospects of this method for magnetospheric imaging applications.

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Yan Betremieux, Timothy A. Cook, Daniel M. Cotton, and Supriya Chakrabarti "SPINR: high-resolution two-dimensional spectral imaging", Proc. SPIE 2008, Instrumentation for Magnetospheric Imagery II, (7 July 1993); https://doi.org/10.1117/12.147629

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