8 March 2014 Design and simulation of a semiconductor chip-based visible - NIR spectrometer for Earth observation
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Abstract
We present the development of a novel semiconductor chip-based spectrometer for calibration of Earth observation instruments. The chip follows the Solo spectroscopy approach utilising an array of microdisk resonators evanescently coupled to a central waveguide. Each resonator is tuned to select out a specific wavelength from the incoming spectrum, and forms a p-i-n junction in which current is generated when light of the correct wavelength is present. In this paper we discuss important design aspects including the choice of semiconductor material, design of semiconductor quantum well structures for optical absorption, and design and optimisation of the waveguide and resonators.
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J. Coote, E. Woolliams, N. Fox, I. D. Goodyer, S. J. Sweeney, "Design and simulation of a semiconductor chip-based visible - NIR spectrometer for Earth observation", Proc. SPIE 8988, Integrated Optics: Devices, Materials, and Technologies XVIII, 898819 (8 March 2014); doi: 10.1117/12.2040002; https://doi.org/10.1117/12.2040002
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