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Proceedings Paper

Application of micromirror arrays for Hadamard transform optics
Author(s): Marian Hanf; Steffen Kurth; Detlef Billep; Ramon Hahn; Wolfgang Faust; Steffen Heinz; Wolfram Doetzel; Thomas Gessner
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Paper Abstract

The paper presents a novel kind of Hadamard transform optic. First investigations are made with a micro mirror array in a Hadamard transform spectrometer (HTS) whereby the usually used detector array is replaced by the micro mirror array. All the mirrors are imaged onto a single detector. The measurement is performed using a Hadamard matrix, i.e. while each detector reading a certain combination of mirrors given by the matrix is reflecting the light towards the detector. All the rest of them are reflecting the light beside it. The consequence is an improvement of the signal to noise ratio (SNR). The novelty of the realized spectrometer is that in contrast to other applications the mirrors are not statically switched but they are forced to oscillate at their resonant frequency. By this way a special Hadamard matrix can be used that improves the SNR best.

Paper Details

Date Published: 7 April 2004
PDF: 4 pages
Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); doi: 10.1117/12.558419
Show Author Affiliations
Marian Hanf, Technische Univ. Chemnitz (Germany)
Steffen Kurth, Fraunhofer-Institut fuer Zuverlassigkeit und Mikrointegration (Germany)
Detlef Billep, Technische Univ. Chemnitz (Germany)
Ramon Hahn, Technische Univ. Chemnitz (Germany)
Wolfgang Faust, Fraunhofer-Institut fuer Zuverlassigkeit und Mikrointegration (Germany)
Steffen Heinz, Technische Univ. Chemnitz (Germany)
Wolfram Doetzel, Technische Univ. Chemnitz (Germany)
Thomas Gessner, Technische Univ. Chemnitz (Germany)

Published in SPIE Proceedings Vol. 5445:
Microwave and Optical Technology 2003
Jaromir Pistora; Kamil Postava; Miroslav Hrabovsky; Banmali S. Rawat, Editor(s)

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