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Authors: Naser Pour Aryan and Albrecht Rothermel

Affiliation: University of Ulm, Germany

Keyword(s): Dark Current, Epitaxy Process, Photodiode, Retinal Illuminance, Subretinal Chip.

Related Ontology Subjects/Areas/Topics: Artificial Vision ; Biomedical Optics ; Optical Instrumentation ; Optics ; Photonic and Optoelectronic Materials and Devices ; Photonics ; Photonics, Optics and Laser Technology ; Photorefractive Effects, Materials, and Devices

Abstract: Photodiodes are important elements in subretinal visual stimulation chips (Rao et al., 2006; Rothermel et al., 2009). This paper quantifies the advantages of using a process involving a low photodiode dark current per unit area for fabricating these devices. Such a technology needs an epitaxy process to optimize the substrate material lattice properties as also mentioned in (Cinguino et al., 1985) and (Inada et al., 2009). In the following we show that the illumination on the retina is in a range that an epitaxy process ensuring low dark current becomes beneficial. To the authors’ knowledge, this is the first study of its kind in open literature.

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Paper citation in several formats:
Pour Aryan, N. and Rothermel, A. (2013). Analysis of Photosensor Properties for Visual Neural Stimulators. In Proceedings of the International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-8565-44-0; ISSN 2184-4364, SciTePress, pages 40-44. DOI: 10.5220/0004312400400044

@conference{photoptics13,
author={Naser {Pour Aryan}. and Albrecht Rothermel.},
title={Analysis of Photosensor Properties for Visual Neural Stimulators},
booktitle={Proceedings of the International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2013},
pages={40-44},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004312400400044},
isbn={978-989-8565-44-0},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Analysis of Photosensor Properties for Visual Neural Stimulators
SN - 978-989-8565-44-0
IS - 2184-4364
AU - Pour Aryan, N.
AU - Rothermel, A.
PY - 2013
SP - 40
EP - 44
DO - 10.5220/0004312400400044
PB - SciTePress