Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-Optic illumination

K. Miyamoto; K. Seki; Y. Guo; T. Wagner; M. J. Schöning; T. Yoshinobu

doi:10.1016/j.proeng.2014.11.563

Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-Optic illumination

K. Miyamoto, K. Seki, Y. Guo, T. Wagner, M. J. Schöning, T. Yoshinobu

Research output: Contribution to journal › Conference article › peer-review

12 Citations (Scopus)

Abstract

The chemical imaging sensor, which is based on the principle of the light-addressable potentiometric sensor (LAPS), is a powerful tool to visualize the spatial distribution of chemical species on the sensor surface. The spatial resolution of this sensor depends on the diffusion of photocarriers excited by a modulated light. In this study, a novel hybrid fiber-optic illumination was developed to enhance the spatial resolution. It consists of a modulated light probe to generate a photocurrent signal and a ring of constant light, which suppresses the lateral diffusion of minority carriers excited by the modulated light. It is demonstrated that the spatial resolution was improved from 92 μm to 68 μm.

Original language	English
Pages (from-to)	612-615
Number of pages	4
Journal	Procedia Engineering
Volume	87
DOIs	https://doi.org/10.1016/j.proeng.2014.11.563
Publication status	Published - 2014
Event	28th European Conference on Solid-State Transducers, EUROSENSORS 2014 - Brescia, Italy Duration: 2014 Sept 7 → 2014 Sept 10

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10.1016/j.proeng.2014.11.563

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title = "Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-Optic illumination",

abstract = "The chemical imaging sensor, which is based on the principle of the light-addressable potentiometric sensor (LAPS), is a powerful tool to visualize the spatial distribution of chemical species on the sensor surface. The spatial resolution of this sensor depends on the diffusion of photocarriers excited by a modulated light. In this study, a novel hybrid fiber-optic illumination was developed to enhance the spatial resolution. It consists of a modulated light probe to generate a photocurrent signal and a ring of constant light, which suppresses the lateral diffusion of minority carriers excited by the modulated light. It is demonstrated that the spatial resolution was improved from 92 μm to 68 μm.",

author = "K. Miyamoto and K. Seki and Y. Guo and T. Wagner and Sch{\"o}ning, {M. J.} and T. Yoshinobu",

note = "Publisher Copyright: {\textcopyright} 2014 The Authors. Published by Elsevier Ltd.; 28th European Conference on Solid-State Transducers, EUROSENSORS 2014 ; Conference date: 07-09-2014 Through 10-09-2014",

year = "2014",

doi = "10.1016/j.proeng.2014.11.563",

language = "English",

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T1 - Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-Optic illumination

AU - Miyamoto, K.

AU - Seki, K.

AU - Guo, Y.

AU - Wagner, T.

AU - Schöning, M. J.

AU - Yoshinobu, T.

PY - 2014

Y1 - 2014

N2 - The chemical imaging sensor, which is based on the principle of the light-addressable potentiometric sensor (LAPS), is a powerful tool to visualize the spatial distribution of chemical species on the sensor surface. The spatial resolution of this sensor depends on the diffusion of photocarriers excited by a modulated light. In this study, a novel hybrid fiber-optic illumination was developed to enhance the spatial resolution. It consists of a modulated light probe to generate a photocurrent signal and a ring of constant light, which suppresses the lateral diffusion of minority carriers excited by the modulated light. It is demonstrated that the spatial resolution was improved from 92 μm to 68 μm.

AB - The chemical imaging sensor, which is based on the principle of the light-addressable potentiometric sensor (LAPS), is a powerful tool to visualize the spatial distribution of chemical species on the sensor surface. The spatial resolution of this sensor depends on the diffusion of photocarriers excited by a modulated light. In this study, a novel hybrid fiber-optic illumination was developed to enhance the spatial resolution. It consists of a modulated light probe to generate a photocurrent signal and a ring of constant light, which suppresses the lateral diffusion of minority carriers excited by the modulated light. It is demonstrated that the spatial resolution was improved from 92 μm to 68 μm.

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DO - 10.1016/j.proeng.2014.11.563

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AN - SCOPUS:84923321259

SN - 1877-7058

VL - 87

SP - 612

EP - 615

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 28th European Conference on Solid-State Transducers, EUROSENSORS 2014

Y2 - 7 September 2014 through 10 September 2014

ER -

Enhancement of the spatial resolution of the chemical imaging sensor by a hybrid fiber-Optic illumination

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