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Large area double p–i–n heterostructure for signal multiplexing and demultiplexing in the visible range

Vieira, M. ; Louro, P. ; Fernandes, M. ; Vieira, M.A. ; Fantoni, A. ; Barata, M.

Thin solid films, 2009-10, Vol.517 (23), p.6435-6439 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Large area double p–i–n heterostructure for signal multiplexing and demultiplexing in the visible range
Autor: Vieira, M. ; Louro, P. ; Fernandes, M. ; Vieira, M.A. ; Fantoni, A. ; Barata, M.
Assuntos: a-SiC:H multilayered heterojunctions ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Electrical simulation ; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures ; Electronic transport phenomena in thin films and low-dimensional structures ; Exact sciences and technology ; Optical transmission ; Photoconduction and photovoltaic effects; photodielectric effects ; Physics ; Wavelength division multiplexing device
É parte de: Thin solid films, 2009-10, Vol.517 (23), p.6435-6439
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: Results on the use of a double a-SiC:H p–i–n heterostructure for signal multiplexing and demultiplexing applications in the visible range, are presented. Modulated monochromatic beams together (multiplexing mode), or a single polychromatic beam (demultiplexing mode) impinge in the device and are absorbed, accordingly to their wavelength, giving rise to a time and wavelength dependent electrical field modulation. Red, green and blue pulsed input channels are transmitted together, each one with a specific transmission rate. The combined optical signal is analyzed by reading out, under different applied voltages, the generated photocurrent. Results show that in the multiplexing mode the output signal is balanced by the wavelength and transmission rate of each input channel, keeping the memory of the incoming optical carriers. In the demultiplexing mode the photocurrent is controlled by the applied voltage allowing regaining the transmitted information. An electrical model gives insight into the device operation.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Large area double p–i–n heterostructure for signal multiplexing and demultiplexing in the visible range

Vieira, M. ; Louro, P. ; Fernandes, M. ; Vieira, M.A. ; Fantoni, A. ; Barata, M.

Amsterdam: Elsevier B.V

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