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Gerhard Lammel

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Related publications (6)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

Influence of aerosol acidity and organic ligands on transition metal solubility and oxidative potential of fine particulate matter in urban environments

Gerhard Lammel, Athanasios Nenes

The adverse health effects of air pollution around the world have been associated with the inhalation of fine particulate matter (PM2.5). Such outcomes are thought to be related to the induction of oxidative stress due to the excess formation of reactive o ...

Elsevier2023

Tunable optical filter of porous silicon as key component for a MEMS spectrometer

Sandra Schweizer, Philippe Renaud, Gerhard Lammel

We present a microspectrometer based on a tunable interference filter for infrared or visible light that scans the desired part of the spectrum within milliseconds. A single pixel detector measures serially the intensity at selected wavelengths. This conce ...

Institute of Electrical and Electronics Engineers2002

MEMS infrared gas spectrometer based on a porous silicon tunable filter

Sandra Schweizer, Philippe Renaud, Gerhard Lammel

We present a MEMS infrared spectrometer for selective and quantitative chemical gas analysis. infrared absorption spectroscopy can distinguish gases easily and also detect nonreactive molecules like CO2, in contrast to e.g. metal oxide gas sensors The foll ...

2001