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Proceedings Paper

Spectrometry: photon sorting at the speed of light
Author(s): H. J. P. Vink; J. P. R. Day; J.B. C.G. Volatier; M. D. Nijkerk
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Paper Abstract

The fact that every spectrometer can sort light by wavelength at the speed of light is intriguing. The field of spectrometry is a long-existing and ever-changing one. The application areas extend from optical communication to possible extraterrestrial life detection, health monitoring, environmental monitoring and quite a long list of other topics. TNO has played a role in several of these areas, always using state of the art designs and components. Some of the recent developments are described, as well as a possible path for (near) future developments. Any spectrometer consists of a telescope, slit, collimator, disperser and an imager. Each of these functions is discussed using and even pushing progress in the manufacturing and design capabilities of the industry. The progress from a two-mirror spherical telescope for a pushbroom space-based daily global coverage spectroscopy instrument OMI to a two-mirror freeform telescope for TROPOMI is described, the design and manufacturing of supergratings showing very little straylight, freeform mirrors and the use of deliberately decentered lenses is shown. A near-future small-satellite system is shown that is being built and tested as this paper was written.

Paper Details

Date Published: 23 September 2015
PDF: 13 pages
Proc. SPIE 9626, Optical Systems Design 2015: Optical Design and Engineering VI, 96261L (23 September 2015); doi: 10.1117/12.2191294
Show Author Affiliations
H. J. P. Vink, TNO Technical Sciences (Netherlands)
J. P. R. Day, TNO Technical Sciences (Netherlands)
J.B. C.G. Volatier, TNO Technical Sciences (Netherlands)
M. D. Nijkerk, TNO Technical Sciences (Netherlands)

Published in SPIE Proceedings Vol. 9626:
Optical Systems Design 2015: Optical Design and Engineering VI
Laurent Mazuray; Rolf Wartmann; Andrew P. Wood, Editor(s)

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