Novel combination of digital light processing (DLP) and light-addressable potentiometric sensors (LAPS) for flexible chemical imaging

Torsten Wagner, Ko Ichiro Miyamoto, Michael J. Schöning, Tatsuo Yoshinobu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Chemical imaging systems allow the visualisation of the distribution of chemical species on the sensor surface. This work represents a new flexible approach of read out in a light-addressable potentiometric sensor (LAPS) with the help of a digital light processing (DLP) set-up. The DLP, known well for video projectors, consists of a mirror-array MEMS device which allows fast and flexible generation of light patterns. With the help of these light patterns the sensor surface of the LAPS device can be read out sequentially in a raster like scheme (scanning LAPS). The DLP approach has several advantages compared to conventional scanning LAPS set-ups, e.g., the spot size, the shape and the intensity of the light pointer can be changed easily and no mechanical movement is necessary, which reduces the size of the set-up and increases the stability and speed of measurement.

Original languageEnglish
Pages (from-to)520-523
Number of pages4
JournalProcedia Engineering
Volume5
DOIs
Publication statusPublished - 2010

Keywords

  • Chemical imaging
  • Chemical sensors
  • DLP
  • Digital light processing
  • LAPS
  • Light-addressable potentiometric sensor

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Novel combination of digital light processing (DLP) and light-addressable potentiometric sensors (LAPS) for flexible chemical imaging'. Together they form a unique fingerprint.

Cite this