Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Hannes Gothe"'
Publikováno v:
Physical Review A. 99
We observed optical bistability as well as oscillations in the upper bistable branch when cold ytterbium atoms are dispersively coupled to a high finesse optical cavity. Comparable previous observations were explained by atomic density oscillations i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d9dbbe8346693b6079da2626645af6b
https://doi.org/10.1103/physreva.99.013849
https://doi.org/10.1103/physreva.99.013849
While conventional lasers are based on gain media with three or four real levels, unconventional lasers including virtual levels and two-photon processes offer new opportunities. We study lasing that involves a two-photon process through a virtual lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dbaf52ce9aaae989b5e3bcb21ff9fce
Publikováno v:
Optical and Quantum Electronics. 40:397-402
In this work we study the input–output characteristics of an organic vertical cavity surface emitting laser (OVCSEL) with an active layer of Alq3:DCM over 3 orders of magnitude in pump intensity. We find that lasing from this standard inhomogeneous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f835c7a92ef3c39fff0b4d32dbb1d96e
https://doi.org/10.1007/s11082-008-9229-2
https://doi.org/10.1007/s11082-008-9229-2
We extend the technique originally proposed by Honda et al.to measure the temperature of Ytterbium and alkine-earth atoms confined in a Magneto-Optical Trap (MOT). The method is based on the analysis of excitation spectra obtained by probing the 1S0-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::920b2ea032d13b87b47e19937514a41c
Autor:
Bernd Schütte, Karl Leo, Hannes Gothe, Vadim G. Lyssenko, Markas Sudzius, S. I. Hintschich, Hartmut Fröb
Publikováno v:
SPIE Proceedings.
The application of organic materials as solid state lasers critically relies on a low lasing threshold. We investigate the characteristics of emission from an organic vertical cavity surface emitting laser. The microcavity studied here consists of tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::340bf39bf83745c5c7669279c61db8ae
https://doi.org/10.1117/12.781138
https://doi.org/10.1117/12.781138
Publikováno v:
2007 International Conference on Numerical Simulation of Optoelectronic Devices.
We have measured the input-output curve of an organic vertical-cavity surface-emitting laser (OVCSEL), made of Alq3:DCM, over more than 2 orders of magnitude beyond threshold. The characteristics cannot be explained by the standard theory of lasing,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8888fa57feb1053d5911c009fcdf1818
https://doi.org/10.1109/nusod.2007.4349022
https://doi.org/10.1109/nusod.2007.4349022
Autor:
Markas Sudzius, Karl Leo, Bernd Schütte, S. I. Hintschich, Vadim G. Lyssenko, H. Fröb, Hannes Gothe
Publikováno v:
Applied Physics Letters. 92:163309
We present an organic microcavity laser with wide tunability in the range of 595–650nm, having a threshold as low as 2nJ/pulse. The active medium consists of the organic composite tris(8-hydroxy quinoline) aluminum (Alq3) and 4-(dicyanomethylene)-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba57fcbc514ae6a67303b124315714f1
https://doi.org/10.1063/1.2913047
https://doi.org/10.1063/1.2913047