Arnott, W. P., K. Hamasha, H. Moosmueller, P. J. Sheridan and J. A. Ogren (2004). "Towards aerosol light absorption measurements with a 7-wavelength Aethalometer ...

They also leveraged quartz-enhanced photoacoustic spectroscopy (QEPAS ... the new method using the laser developed by Stuttgart Instruments and a commercially available QEPAS gas cell to analyze ...