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Akademický článek

A dual-wavelength photothermal aerosol absorption monitor: design, calibration and performance

Autor: L. Drinovec, U. Jagodič, L. Pirker, M. Škarabot, M. Kurtjak, K. Vidović, L. Ferrero, B. Visser, J. Röhrbein, E. Weingartner, D. M. Kalbermatter, K. Vasilatou, T. Bühlmann, C. Pascale, T. Müller, A. Wiedensohler, G. Močnik

Publikováno v: Atmospheric Measurement Techniques, Vol 15, Pp 3805-3825 (2022)

There exists a lack of aerosol absorption measurement techniques with low uncertainties and without artefacts. We have developed the two-wavelength Photothermal Aerosol Absorption Monitor (PTAAM-2λ), which measures the aerosol absorption coefficient

Externí odkaz: https://doaj.org/article/98f65ecf1c11458688ebfe60afdad7b8

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Akademický článek

Comparing black-carbon- and aerosol-absorption-measuring instruments – a new system using lab-generated soot coated with controlled amounts of secondary organic matter

Autor: D. M. Kalbermatter, G. Močnik, L. Drinovec, B. Visser, J. Röhrbein, M. Oscity, E. Weingartner, A.-P. Hyvärinen, K. Vasilatou

Publikováno v: Atmospheric Measurement Techniques, Vol 15, Pp 561-572 (2022)

We report on an inter-comparison of black-carbon- and aerosol-absorption-measuring instruments with laboratory-generated soot particles coated with controlled amounts of secondary organic matter (SOM). The aerosol generation setup consisted of a mini

Externí odkaz: https://doaj.org/article/f08c66fec10d4493bb547427d9a423f9

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Akademický článek

Facility for production of ambient-like model aerosols (PALMA) in the laboratory: application in the intercomparison of automated PM monitors with the reference gravimetric method

Autor: S. Horender, K. Auderset, P. Quincey, S. Seeger, S. N. Skov, K. Dirscherl, T. O. M. Smith, K. Williams, C. C. Aegerter, D. M. Kalbermatter, F. Gaie-Levrel, K. Vasilatou

Publikováno v: Atmospheric Measurement Techniques, Vol 14, Pp 1225-1238 (2021)

A new facility has been developed which allows for a stable and reproducible production of ambient-like model aerosols (PALMA) in the laboratory. The set-up consists of multiple aerosol generators, a custom-made flow tube homogeniser, isokinetic samp

Externí odkaz: https://doaj.org/article/54f9a731b2104fb28013060f635691b2

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Propagation dynamics of optical vortices due to Gouy phase

Autor: S. M. Baumann, L. H. MacMillan, D. M. Kalb, Enrique J. Galvez

Publikováno v: Optics Express. 17:9818

We study the propagation of off-axis vortices in a paraxial beam formed by two collinear Laguerre-Gauss beams. We show that the vortices move about the beam axis as the light propagates resulting in a rotation of the beam's transverse profile. This r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::102f76470918183e0ba0558bf3b15673
https://doi.org/10.1364/oe.17.009818

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