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Design and Modelling of a Fourier Spectrometer Based on Sampling a Standing Wave

Published online by Cambridge University Press:  15 March 2011

D. Knipp ,
H. Stiebig ,
H.-J. Büchner ,
G. Jäger ,
M. Rosa  and
R.A. Street
D. Knipp
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304, USA
H. Stiebig
Affiliation:
Research Center Jülich, Institute of Photovoltaic, 52425 Jülich, Germany
H.-J. Büchner
Affiliation:
TU Ilmenau, Institute of Measurement and Sensor Technology, 98684 Ilmenau, Germany
G. Jäger
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304, USA
M. Rosa
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304, USA
R.A. Street
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304, USA
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Abstract

The design of a novel spectrometer based on a thin film diode in combination with an electro statically tunable micro machined mirror will be presented. The semi transparent diode is introduced into a standing wave created in front of a reflector to sample the profile of the standing wave. Varying the position of the reflector results in a shift of the phase of the standing waves and thus in a change of the optical generation profile within the detector. The spectral information of the incoming light can be determined by the Fourier transformation of the transient response of the sensor. An analytical optical model will be presented which facilitates the evaluation of different detector concepts. The model will be applied to discuss different device designs regarding the resolution of the spectrometer, the spectral range and the linearity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 687: Symposium B – Materials Science of Microelectromechanical Systems (MEMS) Devices IV , 2001 , B5.39
Copyright
Copyright © Materials Research Society 2002

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References

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