Journal
OPTICAL MATERIALS EXPRESS
Volume 9, Issue 10, Pages 3985-3997Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.9.003985
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Funding
- National Natural Science Foundation of China [61674001, 61704019]
- Science and Technology on Analog Integrated Circuits Laboratory [614280205030517]
- National Research Foundation, South Africa [106-2221-E-006-099-MY2]
- Key International Collaboration, South Africa [KSC 69798]
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Silicon avalanche light-emitting devices (Si Av LEDs) offer various possibilities for realizing micro-and even nano- optical biosensors directly on chip. The light-emitting devices (LEDs) operate in the wavelength range of about 450-850nm, and their optical power emitted is of the order of a few hundreds of nW/mu m(2). These LEDs could be fabricated in micro- and nano- dimensions by using modern semiconductor fabrication processing technologies through the mainstream of silicon material. Through a series of experiments, the dispersion phenomena in the Si Av LED are observed. Also, its light emission point was proved to locate at about one micron just below the silicon-silicon oxide interface. Subsequently, a micro-fluidic channel sensor was designed by using the dispersion characteristics owned by the Si Av LED. The analytes flowing through a micro-fluidic channel could be studied by their specific transmittance and absorption spectra. Moreover, simulations verify that a novel designed waveguide-based sensor could be fabricated on chip between the Si optical source and the Si P-I-N detector. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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