Silicon Photo-Receivers

Zimmermann, Horst

doi:10.1007/978-3-540-39913-1_7

Cited by 8 publications

(4 citation statements)

References 33 publications

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“…De acordo com Zimmermann and Fitzsimmons (2004), o crescimento do cultivo intensivo causou uma dependência por rações balanceadas e nutricionalmente completas. Além disso, a alimentação na piscicultura tem sido amplamente discutida, principalmente por representarem cerca de 70% dos custos, dependendo do sistema de cultivo empregado, da escala de produção, da produtividade alcançada, dos preços e insumos, dentre outros fatores (Kubitza, 2009).…”

Section: Pubvetunclassified

Experimental management of Oreochromis niloticus fingerlings, feeding with commercial rations and pre/probiotic

Andrade¹,

Azevedo²

2018

Pubvet

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A tilápia do Nilo (Oreochromis niloticus) na aquicultura brasileira é responsável por 45% da produção de pescado continental, com 219,33 mil toneladas despescadas. A tilapicultura nacional é realizada com intenso manejo, expondo os peixes a situações adversas de cultivo. O objetivo do experimento foi estudar o desempenho dos alevinos de tilápia, alimentados com ração comercial e pre/probióticos. O experimento foi realizado no Laboratório de Organismos Aquáticos -LOA, que foi instalado nas Faculdades Promove de Brasília, campus Águas Claras -DF. Foram adquiridos 55 alevinos de tilápias originados da Granja Modelo Ipê. O experimento foi realizado em aquários retangulares de 40 litros, contendo filtros externos e pedras microporosas ligadas a compressores de ar. Durante todo o experimento foram acompanhados, diariamente, os parâmetros de qualidade da água: temperatura, concentração de oxigênio dissolvido OD2 (mg/L), pH e amônia (mg/L). Para a retirada da matéria orgânica dos aquários composta por fezes e restos de ração, os aquários foram sifonados e a água renovada diariamente. Os parâmetros de qualidade da água do experimento, fases 1 e 2, estiveram dentro dos limites recomendados para tilápia, exceto a amônia que apresentou concentrações altas para a espécie. As boas práticas de manejo de baixa densidade de estocagem, alta renovação de água, sistema de filtragem externa, aeração constantes e utilização da ração com pré e probióticos mantiveram os alevinos vivos, mesmo em condições experimentais e da presença bacteriana Edwardsiella tarda Palavras chave: tilapicultura, desempenho, experimento Experimental management of Oreochromis niloticus fingerlings, feeding with commercial rations and pre/probioticABSTRACT. The Tilapia (Oreochromis niloticus) in Brazilian aquaculture accounts for 45% of continental fish production, with 219.33 thousand tons of fish. National tilapia farming is conducted with intensive management, exposing the fish to adverse crop situations. The objective of the experiment was to study the performance of tilapia fingerlings, fed commercial and pre/probiotic rations. The experiment was carried out at the Laboratory of Aquatic Organisms -LOA, which was set up at the Promove Faculties of Brasília -ICESP, Águas Claras campus -DF. The fifty-five tilapia fingerlings originated from Modelo Ipê Farm were used. The experiment was carried out in 40-liter rectangular aquariums containing external filters and microporous stones attached to air compressors. During the whole experiment, water quality parameters were monitored daily: temperature, dissolved oxygen concentration OD2 (mg/L), pH and ammonia (mg/L). For the removal of organic matter from aquariums composed of faeces and feed remains, the aquariums were siphoned and the water renewed daily. The water quality parameters of the experiment,

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Section: Pubvetunclassified

Experimental management of Oreochromis niloticus fingerlings, feeding with commercial rations and pre/probiotic

Andrade¹,

Azevedo²

2018

Pubvet

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“…Additionally, they are used in conjunction with scintillators, and are widely used as x-ray detectors applied in medical tomography equipment and airport luggage scanners. One of the most important advantages of silicon is that, due to the quality of its crystalline material and its excellent passivation properties, very low dark-current PD devices can be obtained [14]. …”

Section: Introductionmentioning

confidence: 99%

Near-Infrared Sub-Bandgap All-Silicon Photodetectors: State of the Art and Perspectives

Casalino

Coppola

Iodice

et al. 2010

Sensors

168

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Due to recent breakthroughs, silicon photonics is now the most active discipline within the field of integrated optics and, at the same time, a present reality with commercial products available on the market. Silicon photodiodes are excellent detectors at visible wavelengths, but the development of high-performance photodetectors on silicon CMOS platforms at wavelengths of interest for telecommunications has remained an imperative but unaccomplished task so far. In recent years, however, a number of near-infrared all-silicon photodetectors have been proposed and demonstrated for optical interconnect and power-monitoring applications. In this paper, a review of the state of the art is presented. Devices based on mid-bandgap absorption, surface-state absorption, internal photoemission absorption and two-photon absorption are reported, their working principles elucidated and their performance discussed and compared.

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“…Silicon photodetectors have already found wide acceptance for visible light (0.400-0.700 µm) applications [1], while for applications in optical communications in the near-IR wavelength range between 800 and 900 nm they suffer from low bandwidth-efficiency products due to the long absorption length necessitated by the small absorption coefficient. In silicon (Si), considering the interband transition, a cut-off wavelength of about 1.1 µm is obtained; therefore, in order to obtain a photodetector working at 1.3-1.55 µm fibre optic communication wavelength range, we have two possible options.…”

Section: Introductionmentioning

confidence: 99%

A silicon compatible resonant cavity enhanced photodetector working at 1.55 µm

Casalino

Sirleto

Moretti

et al. 2008

Semicond. Sci. Technol.

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In this paper, the design of a novel photodetector at 1.55 µm, working at room temperature and completely silicon compatible, is reported. The device is a resonant cavity enhanced (RCE) structure incorporating a silicon photodetector based on the internal photoemission effect. In order to quantify the performance of photodetector, quantum efficiency including the image force effect, bandwidth and dark current as a function of bias voltage is numerically calculated. A comparison among three different Schottky barrier silicon photodetectors, having as metal layers gold, silver or copper respectively, is proposed. The highest efficiency (0.2%) but also the highest dark current is obtained with metal having the lowest barrier, while for all devices, values of the order of 100 GHz and 100 MHz were obtained, respectively, for the carrier transit time limited 3 dB bandwidth and bandwidth efficiency.

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Silicon Photo-Receivers

Cited by 8 publications

References 33 publications

Experimental management of Oreochromis niloticus fingerlings, feeding with commercial rations and pre/probiotic

Experimental management of Oreochromis niloticus fingerlings, feeding with commercial rations and pre/probiotic

Near-Infrared Sub-Bandgap All-Silicon Photodetectors: State of the Art and Perspectives

A silicon compatible resonant cavity enhanced photodetector working at 1.55 µm

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