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Proceedings Paper

Highly integrated biophotonics towards all-organic lab-on-chip systems
Author(s): Christoph Vannahme; Sönke Klinkhammer; Falko Brinkmann; Steven Lenhert; Tobias Großmann; Uli Lemmer
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Paper Abstract

For sensing with lab-on-chip systems, the use of highly integrated photonic components is a key ingredient for high sensitivity and short response time. Here, we present the efficient integration of organic semiconductor distributed feedback lasers based on Alq3:DCM and deep ultraviolet induced waveguides into a Poly(methyl methacrylate) (PMMA) substrate. The optimized coupling of laser light from the organic semiconductor lasers into the waveguides is discussed. On-chip coupling of laser light at 645 nm to waveguides is demonstrated. Utilizing mass production technologies and simple processes with only a few different materials paves the way for low-cost all-organic chips. In particular, a specific sensing concept is introduced: deep ultraviolet induced waveguides and nanostructured phospholipid gratings, which are bottom-up assembled using Dip-Pen Nanolithography, are combined to form a grating coupler with a grating period of 700 nm. Light of different wavelength is decoupled under different angles by the grating coupler to demonstrate its functional capability. Biosensing with this device is discussed based on a model system.

Paper Details

Date Published: 17 May 2010
PDF: 10 pages
Proc. SPIE 7715, Biophotonics: Photonic Solutions for Better Health Care II, 77151H (17 May 2010); doi: 10.1117/12.856672
Show Author Affiliations
Christoph Vannahme, Karlsruhe Institute of Technology (Germany)
Sönke Klinkhammer, Karlsruhe Institute of Technology (Germany)
Falko Brinkmann, Karlsruhe Institute of Technology (Germany)
Westfälische Wilhelms-Univ. Münster (United States)
Steven Lenhert, Karlsruhe Institute of Technology (Germany)
Westfälische Wilhelms-Univ. Münster (Germany)
Florida State Univ. (United States)
Tobias Großmann, Karlsruhe Institute of Technology (Germany)
Uli Lemmer, Karlsruhe Institute of Technology (Germany)

Published in SPIE Proceedings Vol. 7715:
Biophotonics: Photonic Solutions for Better Health Care II
Jürgen Popp; Wolfgang Drexler; Valery V. Tuchin; Dennis L. Matthews, Editor(s)

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