Zobrazeno 1 - 10
of 74
pro vyhledávání: '"M. Reufer"'
Publikováno v:
Journal of Crystal Growth. 397:24-28
Efficient photoluminescence (PL) spectra from GaN and InGaN layers at temperatures up to 1100 K are observed with low noise floor and high dynamic resolution. A number of detailed spectral features in the PL can be directly linked to physical propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6cbea143e1e078eb11dc070324e67e3
https://doi.org/10.1016/j.jcrysgro.2014.04.001
https://doi.org/10.1016/j.jcrysgro.2014.04.001
Autor:
Manfred J. Walter, Johanna S. Kolb, Ullrich Scherf, Pavlos G. Lagoudakis, John M. Lupton, Hartmut G. Roskos, Anne Beate Hummel, M. Reufer
Publikováno v:
Nature Materials. 4:340-346
The ultimate efficiency of polymer light-emitting diodes is limited by the fraction of charges recombining in the molecular singlet manifold. We address the question of whether this fraction can principally exceed the fundamental limit set down by sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::555f43d459fd310c4609b20c24726ff9
https://doi.org/10.1038/nmat1354
https://doi.org/10.1038/nmat1354
Publikováno v:
Advanced Materials. 16:2170-2174
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9744662e7a43730f728ae6692bda9a5e
https://doi.org/10.1002/adma.200400277
https://doi.org/10.1002/adma.200400277
Autor:
S. Riechel, D. Schneider, Andreas Gombert, John M. Lupton, Thomas Dobbertin, Uli Lemmer, Wolfgang Kowalsky, M. Reufer, Ullrich Scherf, Jochen Feldmann, T. Benstem, Volker Wittwer, Karen Forberich
Publikováno v:
Applied Physics Letters. 84:3262-3264
Optical losses in waveguides comprising metallic contacts are thought to be a major hurdle to the realization of organic laser diodes. We demonstrate here that careful tuning of the waveguide mode in flexible distributed feedback lasers can allow las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a90eb56399ca734f617fa5fe8e2aac
https://doi.org/10.1063/1.1712029
https://doi.org/10.1063/1.1712029
Autor:
B. Piechal, G. Maciejewski, A. Bercha, M. Reufer, A. Gomez-Iglesias, W. Trzeciakowski, Jisoon Ihm, Hyeonsik Cheong
Publikováno v:
AIP Conference Proceedings.
We present the differential photocurrent (DPC) measurements made on set of identical (Al)InGaP red emitting lasers under pressures up to 2GPa. We find that the strains applied by the submount change the pressure tuning rate from 80meV/GPa for the sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7d2e7c50dc8ca8939e7abfa8ab3c4f9
https://doi.org/10.1063/1.3666694
https://doi.org/10.1063/1.3666694
Autor:
Richard V. Penty, M. Reufer, Bernd Sumpf, M. Safer, Daping Chu, Neil Collings, William A. Crossland
Publikováno v:
SPIE Proceedings.
Holographic laser projection is high efficiency when using analogue phase spatial light modulators and high brightness laser sources. The experimental work reported will describe the use of digitally addressed nematic liquid crystal on silicon device
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f68bfc2b55ff947844333534f399cc7
https://doi.org/10.1117/12.858819
https://doi.org/10.1117/12.858819
Autor:
M. Reufer, Jochen Feldmann, Pavlos G. Lagoudakis, John M. Lupton, Manfred J. Walter, Ullrich Scherf
Publikováno v:
Physical Review B. 74
We study the temperature dependence of triplet formation and decay by considering the phosphorescence dynamics in a prototypical conjugated polymer matrix. The dynamics of triplet formation as a function of temperature are unraveled by applying an el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e89f4ec31387c9d9383550fa0a869dd
https://doi.org/10.1103/physrevb.74.241201
https://doi.org/10.1103/physrevb.74.241201
Autor:
Jana Crewett, Jochen Feldmann, M. Reufer, Andrey L. Rogach, Nikolai Gaponik, John M. Lupton, Alexander Eychmüller, Ullrich Scherf, Dmitry S. Koktysh
Publikováno v:
Chemphyschem : a European journal of chemical physics and physical chemistry. 5(9)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a9a21cbb21f0c8140b8e349bd4bbbfd
https://pubmed.ncbi.nlm.nih.gov/15499863
https://pubmed.ncbi.nlm.nih.gov/15499863
Publikováno v:
Applied Physics Letters. 89:141111
Triplet formation is investigated in an optically pumped polymer laser by detecting the phosphorescence emission after excitation. A clear correlation is observed between the onset of lasing and a saturation of phosphorescence intensity due to stimul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5be0d9f954b857b722ef6bf91bf6042
https://doi.org/10.1063/1.2357023
https://doi.org/10.1063/1.2357023
Autor:
M. Reufer, Uli Lemmer, Alexander Stephan Ruhl, David Müller, Klaus Meerholz, Paula Santi Rudati, Jochen Feldmann, Christian Karnutsch, Martina Gerken
Publikováno v:
Applied Physics Letters. 86:221102
We demonstrate that the amplified spontaneous emission (ASE) threshold in multilayer waveguide structures suitable for the use in future organic injection lasers can be drastically reduced by inserting a crosslinked hole transport layer (HTL) between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::230880fa5bad2f9a0d02699304772077
https://doi.org/10.1063/1.1938001
https://doi.org/10.1063/1.1938001