Efficiency of integrated waveguide probes for the detection of light backscattered from weakly scattering media

Nur Ismail; Fehmi Civitci; Kerstin Wörhoff; René M. De Ridder; Markus Pollnau; Alfred Driessen

doi:10.1364/AO.50.000935

Efficiency of integrated waveguide probes for the detection of light backscattered from weakly scattering media

Nur Ismail, Fehmi Civitci, Kerstin Wörhoff, René M. De Ridder, Markus Pollnau, Alfred Driessen

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A semianalytical model for light collection by integrated waveguide probes is developed by extending previous models used to describe fiber probes. The efficiency of waveguide probes is compared to that of different types of fiber probes for different thicknesses of a weakly scattering sample. The simulation results show that integrated probes have a collection efficiency that is higher than that of small-core fiber probes, and, in the particular case of thin samples, also exceeds the collection efficiency of large-core highly multimode fiber probes. An integrated waveguide probe with one excitation and eight collector waveguides is fabricated and applied to excite and collect luminescence from a ruby rod. The experimental results are in good agreement with the simulation and validate the semianalytical model.

Original language	English (US)
Pages (from-to)	935-942
Number of pages	8
Journal	Applied Optics
Volume	50
Issue number	6
DOIs	https://doi.org/10.1364/AO.50.000935
State	Published - Feb 20 2011
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.50.000935

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abstract = "A semianalytical model for light collection by integrated waveguide probes is developed by extending previous models used to describe fiber probes. The efficiency of waveguide probes is compared to that of different types of fiber probes for different thicknesses of a weakly scattering sample. The simulation results show that integrated probes have a collection efficiency that is higher than that of small-core fiber probes, and, in the particular case of thin samples, also exceeds the collection efficiency of large-core highly multimode fiber probes. An integrated waveguide probe with one excitation and eight collector waveguides is fabricated and applied to excite and collect luminescence from a ruby rod. The experimental results are in good agreement with the simulation and validate the semianalytical model.",

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AU - De Ridder, René M.

AU - Pollnau, Markus

AU - Driessen, Alfred

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AB - A semianalytical model for light collection by integrated waveguide probes is developed by extending previous models used to describe fiber probes. The efficiency of waveguide probes is compared to that of different types of fiber probes for different thicknesses of a weakly scattering sample. The simulation results show that integrated probes have a collection efficiency that is higher than that of small-core fiber probes, and, in the particular case of thin samples, also exceeds the collection efficiency of large-core highly multimode fiber probes. An integrated waveguide probe with one excitation and eight collector waveguides is fabricated and applied to excite and collect luminescence from a ruby rod. The experimental results are in good agreement with the simulation and validate the semianalytical model.

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Efficiency of integrated waveguide probes for the detection of light backscattered from weakly scattering media

Abstract

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