Zobrazeno 1 - 10
of 3 713
pro vyhledávání: '"H Herrmann"'
Publikováno v:
New Journal of Physics, Vol 19, Iss 12, p 123009 (2017)
We present and discuss perspectives of current developments on advanced quantum optical circuits monolithically integrated in the lithium niobate platform. A set of basic components comprising photon pair sources based on parametric down conversion (
Externí odkaz:
https://doaj.org/article/d99ac7c9504447a4b9616e383d232cb5
Publikováno v:
New Journal of Physics, Vol 16, Iss 9, p 093058 (2014)
We present a source of polarization-entangled photon pairs suitable for the implementation of long-distance quantum communication protocols using quantum memories. Photon pairs with wavelengths 883 nm and 1338 nm are produced by coherently pumping tw
Externí odkaz:
https://doaj.org/article/f5ce8e8c77bf448eaf334d3348be16e0
Publikováno v:
New Journal of Physics, Vol 15, Iss 3, p 033010 (2013)
We present a pulsed and integrated, highly non-degenerate parametric down-conversion (PDC) source of heralded single photons at telecom wavelengths, paired with heralding photons around 800 nm. The active PDC section is combined with a passive, integ
Externí odkaz:
https://doaj.org/article/c39b80df79ec4053a561dfade6d589d1
Autor:
Y. Wang, S. Henning, L. Poulain, C. Lu, F. Stratmann, S. Niu, M. L. Pöhlker, H. Herrmann, A. Wiedensohler
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 15943-15962 (2022)
Understanding aerosol particle activation is essential for evaluating aerosol indirect effects (AIEs) on climate. Long-term measurements of aerosol particle activation help to understand the AIEs and narrow down the uncertainties of AIEs simulation.
Externí odkaz:
https://doaj.org/article/771710df6d3e4070b4298dcd6b8267b5
Autor:
R. Man, Z. Wu, T. Zong, A. Voliotis, Y. Qiu, J. Größ, D. van Pinxteren, L. Zeng, H. Herrmann, A. Wiedensohler, M. Hu
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 12387-12399 (2022)
Particle hygroscopicity plays a key role in determining the particle deposition in the human respiratory tract (HRT). In this study, the effects of hygroscopicity and mixing state on regional and total deposition doses on the basis of the particle nu
Externí odkaz:
https://doaj.org/article/81f48ca49ca042b59f2ed945cfc885fc
Autor:
L. Mateus-Fontecha, A. Vargas-Burbano, R. Jimenez, N. Y. Rojas, G. Rueda-Saa, D. van Pinxteren, M. van Pinxteren, K. W. Fomba, H. Herrmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 8473-8495 (2022)
Agro-industrial areas are frequently affected by various sources of atmospheric pollutants that have a negative impact on public health and ecosystems. However, air quality in these areas is infrequently monitored because of their smaller population
Externí odkaz:
https://doaj.org/article/e6188993372545698c6aab37c4202212
Autor:
M. van Pinxteren, T.-B. Robinson, S. Zeppenfeld, X. Gong, E. Bahlmann, K. W. Fomba, N. Triesch, F. Stratmann, O. Wurl, A. Engel, H. Wex, H. Herrmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 5725-5742 (2022)
Transparent exopolymer particles (TEPs) exhibit the properties of gels and are ubiquitously found in the world oceans. TEPs may enter the atmosphere as part of sea-spray aerosol. Here, we report number concentrations of TEPs with a diameter > 4.5 µm
Externí odkaz:
https://doaj.org/article/dd802d271a5c43b9a18288adf3cc1423
Autor:
K. Glojek, G. Močnik, H. D. C. Alas, A. Cuesta-Mosquera, L. Drinovec, A. Gregorič, M. Ogrin, K. Weinhold, I. Ježek, T. Müller, M. Rigler, M. Remškar, D. van Pinxteren, H. Herrmann, M. Ristorini, M. Merkel, M. Markelj, A. Wiedensohler
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 5577-5601 (2022)
Residential wood combustion is a widespread practice in Europe with a serious impact on air quality, especially in mountainous areas. While there is a significant number of studies conducted in deep urbanized valleys and basins, little is known about
Externí odkaz:
https://doaj.org/article/08e0e65771e7415e9683a9786176852b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 18147-18174 (2021)
Field measurements were conducted to determine aerosol chemical composition at a newly established remote high-altitude site in North Africa at the Atlas Mohammed V (AMV) atmospheric observatory located in the Middle Atlas Mountains. The main obje
Externí odkaz:
https://doaj.org/article/6b82ca95e9a24443b925c8dd357aa132
Autor:
R. A. Cox, M. Ammann, J. N. Crowley, P. T. Griffiths, H. Herrmann, E. H. Hoffmann, M. E. Jenkin, V. F. McNeill, A. Mellouki, C. J. Penkett, A. Tilgner, T. J. Wallington
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13011-13018 (2021)
The term open-air factor (OAF) was coined following microbiological research in the 1960s and 1970s which established that rural air had powerful germicidal properties and attributed this to Criegee intermediates formed in the reaction of ozone with
Externí odkaz:
https://doaj.org/article/9d800a62e9f3459a824a96c684d3f047