Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4841
Título: Tunnig optical A-Sic/A-Si active filters by UV bias light in the visible and infrared spectral ranges
Autor: Vieira, Maria Manuela Almeida Carvalho
Vieira, Manuel Augusto
Rodrigues, Isabel Maria Cabrita
Silva, Vítor Manuel Guerra Vaz
Louro, Paula Maria Garcia
Palavras-chave: Amorphous SiC tandem devices
Integrated optical filter
Spectral sensitivity
Visible/IR communications
Data: Nov-2014
Editora: Wiley-VCH Verlag
Citação: VIEIRA, Manuela Almeida Carvalho; [et al] – Tunning optical A- SiC/A-Si active filters by UV bias light in the visible and infrared spectral ranges. Physica Status Solidi (C) Current Topics in Solid State Physics. ISSN: 1862-6351. Vol. 11, nr. 11-12 (2014) p. 1674-1677.
Resumo: Visible range to telecom band spectral translation is accomplished using an amorphous SiC pi'n/pin wavelength selector under appropriate front and back optical light bias. Results show that background intensity works as selectors in the infrared region, shifting the sensor sensitivity. Low intensities select the near-infrared range while high intensities select the visible part according to its wavelength. Here, the optical gain is very high in the infrared/red range, decreases in the green range, stays close to one in the blue region and strongly decreases in the near-UV range. The transfer characteristics effects due to changes in steady state light intensity and wavelength backgrounds are presented. The relationship between the optical inputs and the output signal is established. A capacitive optoelectronic model is presented and tested using the experimental results. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4841
DOI: 10.1002/pssc.201400020
ISSN: 1862-6351
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Artigos

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