A high-density multi-point LAPS set-up using a VCSEL array and FPGA control

T. Wagner; C. F. Werner; K. Miyamoto; M. J. Schöning; T. Yoshinobu

doi:10.1016/j.proche.2009.07.370

A high-density multi-point LAPS set-up using a VCSEL array and FPGA control

T. Wagner, C. F. Werner, K. Miyamoto, M. J. Schöning, T. Yoshinobu

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

6 Citations (Scopus)

Abstract

A new LAPS (light-addressable potentiometric sensor) set-up will be introduced, in which the light sources are miniaturised by the utilisation of a VCSEL (vertical-cavity surface-emitting laser) array to increase the measurement spot density. An FPGA (field-programmable gate array) is used to generate modulation signals for an individual illumination of each measurement spot of the LAPS. The new set-up can operate a large number of measurement spots simultaneously by reading out the sum-photocurrent and separate the signals of the individual measurement spots by FFT analysis. The frequency, amplitude and offset of the modulation signal can be configured for each measurement spot programmatically.

Original language	English
Pages (from-to)	1483-1486
Number of pages	4
Journal	Procedia Chemistry
Volume	1
Issue number	1
DOIs	https://doi.org/10.1016/j.proche.2009.07.370
Publication status	Published - 2009 Sept
Event	Eurosensors 23rd Conference - Lausanne, Switzerland Duration: 2009 Sept 6 → 2009 Sept 9

Keywords

biosensors
field-effect
FPGA
LAPS
semiconductor
VCSEL

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10.1016/j.proche.2009.07.370

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title = "A high-density multi-point LAPS set-up using a VCSEL array and FPGA control",

abstract = "A new LAPS (light-addressable potentiometric sensor) set-up will be introduced, in which the light sources are miniaturised by the utilisation of a VCSEL (vertical-cavity surface-emitting laser) array to increase the measurement spot density. An FPGA (field-programmable gate array) is used to generate modulation signals for an individual illumination of each measurement spot of the LAPS. The new set-up can operate a large number of measurement spots simultaneously by reading out the sum-photocurrent and separate the signals of the individual measurement spots by FFT analysis. The frequency, amplitude and offset of the modulation signal can be configured for each measurement spot programmatically.",

keywords = "biosensors, field-effect, FPGA, LAPS, semiconductor, VCSEL",

author = "T. Wagner and Werner, {C. F.} and K. Miyamoto and Sch{\"o}ning, {M. J.} and T. Yoshinobu",

note = "Funding Information: The authors gratefully thank the Japan Society for the Promotion of Science (JSPS), as well as the “Fachagentur f{\"u}r Nachwachsende Rohstoffe e.V.” (FNR) and the Federal Ministry of Food, Agriculture and Consumer Protection (BMELV) of Germany for the financial support.; Eurosensors 23rd Conference ; Conference date: 06-09-2009 Through 09-09-2009",

year = "2009",

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AU - Wagner, T.

AU - Werner, C. F.

AU - Miyamoto, K.

AU - Schöning, M. J.

AU - Yoshinobu, T.

N1 - Funding Information: The authors gratefully thank the Japan Society for the Promotion of Science (JSPS), as well as the “Fachagentur für Nachwachsende Rohstoffe e.V.” (FNR) and the Federal Ministry of Food, Agriculture and Consumer Protection (BMELV) of Germany for the financial support.

PY - 2009/9

Y1 - 2009/9

N2 - A new LAPS (light-addressable potentiometric sensor) set-up will be introduced, in which the light sources are miniaturised by the utilisation of a VCSEL (vertical-cavity surface-emitting laser) array to increase the measurement spot density. An FPGA (field-programmable gate array) is used to generate modulation signals for an individual illumination of each measurement spot of the LAPS. The new set-up can operate a large number of measurement spots simultaneously by reading out the sum-photocurrent and separate the signals of the individual measurement spots by FFT analysis. The frequency, amplitude and offset of the modulation signal can be configured for each measurement spot programmatically.

AB - A new LAPS (light-addressable potentiometric sensor) set-up will be introduced, in which the light sources are miniaturised by the utilisation of a VCSEL (vertical-cavity surface-emitting laser) array to increase the measurement spot density. An FPGA (field-programmable gate array) is used to generate modulation signals for an individual illumination of each measurement spot of the LAPS. The new set-up can operate a large number of measurement spots simultaneously by reading out the sum-photocurrent and separate the signals of the individual measurement spots by FFT analysis. The frequency, amplitude and offset of the modulation signal can be configured for each measurement spot programmatically.

KW - biosensors

KW - field-effect

KW - FPGA

KW - LAPS

KW - semiconductor

KW - VCSEL

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JF - Procedia Chemistry

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Y2 - 6 September 2009 through 9 September 2009

ER -

A high-density multi-point LAPS set-up using a VCSEL array and FPGA control

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Keywords

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