Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jens Pollmann-Retsch"'
Autor:
Rolf Apetz, Ralf Conrads, Stephan Gronenborn, Jens Pollmann-Retsch, Carsten Deppe, Holger Moench, Armand Pruijmboom, Thomas Mattes
Publikováno v:
High-Power Diode Laser Technology XX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ec13ba2e831bc079765ecdf31dde7d
https://doi.org/10.1117/12.2619506
https://doi.org/10.1117/12.2619506
Autor:
Jens Pollmann-Retsch, Ralf Conrads, Holger Moench, Stephan Gronenborn, Ulrich Weichmann, Pavel Pekarski, Michael Miller, Armand Pruijmboom, Xi Gu
Publikováno v:
SPIE Proceedings.
High power VCSEL systems are a novel laser source used for thermal treatment in industrial manufacturing. These systems will be applied in many applications, which have not used a laser source before. This is enabled by the unique combination of effi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7690bfb451b5fea3704be35b5aa4279
https://doi.org/10.1117/12.2210909
https://doi.org/10.1117/12.2210909
Autor:
Johanna Kolb, M. Strösser, Michael Miller, Peter Loosen, Pavel Pekarski, Stephan Gronenborn, Jens Pollmann-Retsch, Holger Mönch
Publikováno v:
Applied Physics B. 105:783-792
We show how VCSELs with elongated shapes of the emission area can achieve higher output powers and wall-plug efficiency compared to standard circular or quadratic VCSELs. We identified an improved homogeneity of the carrier concentration in the quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f5976a7e5268637df463b6bcd1992ab
https://doi.org/10.1007/s00340-011-4593-1
https://doi.org/10.1007/s00340-011-4593-1
Autor:
Jens Pollmann-Retsch, Stephan Gronenborn, Johanna Kolb, Gero Heusler, Michael Miller, Armand Pruijmboom, Ulrich Weichmann, Pavel Pekarski, Guenther Derra, Holger Moench, Carsten Deppe, Xi Gu, Ralf Conrads
Publikováno v:
High-Power Diode Laser Technology and Applications XIII.
Easy system design, compactness and a uniform power distribution define the basic advantages of high power VCSEL systems. Full addressability in space and time add new dimensions for optimization and enable “digital photonic production”. Many the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::437a4c2ad0fd696a4c2007b18fd2ac37
https://doi.org/10.1117/12.2076267
https://doi.org/10.1117/12.2076267
Autor:
Ralf Conrads, Rolf Apetz, Felix Ogiewa, Holger Moench, Johanna Kolb, Guenther Derra, Michael Miller, Pavel Pekarski, Xi Gu, Carsten Deppe, Armand Pruijmboom, Ulrich Weichmann, Stephan Gronenborn, Jens Pollmann-Retsch
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
Thermal treatment may be by far the most frequent process used in manufacturing, but only at a few places lasers could make an inroad. For thermal treatment homogeneous illumination of large areas at a lower brightness, and accurate temporal as well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee6b9d2b80cb8280275f22fa20115a27
https://doi.org/10.2351/1.5063168
https://doi.org/10.2351/1.5063168
Autor:
Felix Ogiewa, Stephan Gronenborn, Xi Gu, Armand Pruijmboom, Pavel Pekarski, Holger Moench, Gero Heusler, Ulrich Weichmann, Ralf Conrads, Guenther Derra, Carsten Deppe, Jens Pollmann-Retsch, Johanna Kolb, Michael Miller
Publikováno v:
2014 IEEE Photonics Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a78a706ea20f8268f70da02dbc0f85a8
https://doi.org/10.1109/ipcon.2014.6995334
https://doi.org/10.1109/ipcon.2014.6995334
Autor:
Ulrich Weichmann, Pavel Pekarski, Hermann Giese, Ulrich Hechtfischer, Jens Pollmann-Retsch, Guenther Derra, Ulrich Niemann, Arnd Ritz, Folke-Charlotte Noertemann, Gero Heusler, Ernst Fischer, Achim Gerhard Rolf Koerber, Holger Moench
Publikováno v:
Journal of Physics D: Applied Physics. 38:2995-3010
Projection systems have found widespread use in conference rooms and other professional applications during the last decade and are now entering the home TV market at a considerable pace. Projectors as small as about one litre are able to deliver sev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c187840463a4363704443d6bb63fff2
https://doi.org/10.1088/0022-3727/38/17/r01
https://doi.org/10.1088/0022-3727/38/17/r01
Autor:
Ulrich Weichmann, Philipp Gerlach, Roland Jaeger, Jens Pollmann-Retsch, Johanna Kolb, Bernd Witzigmann, Andreas P. Engelhardt, Holger Moench
Publikováno v:
SPIE Proceedings.
High-power VCSEL systems with multi kilowatt output power require a good electro-optical efficiency at the point of operation i.e. at elevated temperature. The large number of optimization parameters can be structured in a way that separates system a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d39eeda0d02596efd11d36fe3d6dc11c
https://doi.org/10.1117/12.2037608
https://doi.org/10.1117/12.2037608
Autor:
Jens Pollmann-Retsch, Guenther Derra, Armand Pruijmboom, Johanna Kolb, Carsten Deppe, Michael Miller, Ralf Conrads, Holger Moench, Xi Gu, Ulrich Weichmann, Pavel Pekarski, Stephan Gronenborn, Felix Ogiewa, Rolf Apetz
Publikováno v:
Journal of Laser Applications. 28:032005
Thermal treatment may be by far the most frequent process used in manufacturing, but only at a few places lasers could make an inroad. For thermal treatment, homogeneous illumination of large areas at a lower brightness, and accurate temporal as well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efe44288e71b9dc2f4fbf9df041170f6
https://doi.org/10.2351/1.4946806
https://doi.org/10.2351/1.4946806
Autor:
Gero Heusler, Armand Pruijmboom, Johanna Kolb, Michael Miller, Xi Gu, Raimond Louis Dumoulin, Pavel Pekarski, Martin Stroesser, Jens Pollmann-Retsch, Stephan Gronenborn, Holger Moench
Publikováno v:
SPIE Proceedings.
High power VCSEL arrays can be used as a versatile illumination and heating source. They are widely scalable in power and offer a robust and economic solution for many new applications with moderate brightness requirements. The design of high power V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38e9765bcb17ae9a0911b1ed76201de
https://doi.org/10.1117/12.906654
https://doi.org/10.1117/12.906654