Zobrazeno 1 - 10
of 44
pro vyhledávání: '"G. F. Imbusch"'
Publikováno v:
Optics letters. 3(5)
We have employed a purely optical method to measure spin-lattice relaxation in the lower excited (4)S(3/2) state of Er(3+) in LaF(3) at helium temperatures. Above 3 K the relaxation is dominated by an Orbach process through the upper (4)S(3/2) state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9a7c56292fa4ce111dd52c2243097bb
https://pubmed.ncbi.nlm.nih.gov/19684737
https://pubmed.ncbi.nlm.nih.gov/19684737
Publikováno v:
Journal of Physics: Condensed Matter. 2:5171-5178
The total decay rate of the 6I7/2 term level of Gd3+ in YOCl and LiYF4 is studied as a function of temperature. This rate is described as a termal average of the difference contributions of the crystal field components. The difference between the rat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a68f3325f1a026163dfb58329cd43468
https://doi.org/10.1088/0953-8984/2/23/007
https://doi.org/10.1088/0953-8984/2/23/007
Autor:
G. F. Imbusch
Publikováno v:
Optical Properties of Excited States in Solids ISBN: 9781461363279
We discuss the spectroscopic studies of ions in solids which throw light on the properties of excited states which are reached by optical absorption from the ground state. The difference in the ion—lattice coupling between ground and excited states
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2f4856a108e315ae9c522aa7eec2fe0
https://doi.org/10.1007/978-1-4615-3044-2_5
https://doi.org/10.1007/978-1-4615-3044-2_5
Autor:
G. F. Imbusch
Publikováno v:
Optical Properties of Excited States in Solids ISBN: 9781461363279
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f198a1958bacc23c639ad6c1de952dee
https://doi.org/10.1007/978-1-4615-3044-2_56
https://doi.org/10.1007/978-1-4615-3044-2_56
Autor:
L. A. Momoda, L. M. dos Santos, D. A. Young, J. Sytsma, J. P. M. van Vliet, Teresa Monteiro, G. F. Imbusch, X. X. Zhang, Andries Meijerink, D. Oberhauser, S. Jain, A. Uhrig, G. E. Giakoumakis, S. Albin, Ö. Pekcan, K. C. Mishra, M. Grün, C. J. Donnelly, D. B. Hollis, S. E. Sarkisov, R. Raue, M. Minella, H. C. G. Verhaar, H. von Seggern, H. Schwab, R. Chapoulie
Publikováno v:
Advances in Nonradiative Processes in Solids ISBN: 9781441932198
Optimal transitions between the 5D4 excited state of the Tb3+ (4f)8 configuration and the crystal field splitted components of the (4f)85d configuration have been observed using high-resolution laser excitation of Tb-doped powder samples. The Excited
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c27010d8f07799b9d9c3bf29bacff183
https://doi.org/10.1007/978-1-4757-4446-0_23
https://doi.org/10.1007/978-1-4757-4446-0_23
Autor:
C. J. Donnelly, G. F. Imbusch
Publikováno v:
Advances in Nonradiative Processes in Solids ISBN: 9781441932198
We examine the predictions of models employed to describe nonradiative multiphonon decay processes between electronic states of optically-active centres in inorganic insulating solids. We initially consider the single configurational coordinate model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bfe0a370cce200aa307c3cc4005d73b
https://doi.org/10.1007/978-1-4757-4446-0_5
https://doi.org/10.1007/978-1-4757-4446-0_5
Autor:
G. F. Imbusch
Publikováno v:
Advances in Nonradiative Processes in Solids ISBN: 9781441932198
We examine the nonradiative multiphonon relaxation mechanism between electronic levels of optically-active ions in glasses, and we compare the values of the relaxation rate with that found in crystals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c249e59496bb2033ffe8d40768444052
https://doi.org/10.1007/978-1-4757-4446-0_8
https://doi.org/10.1007/978-1-4757-4446-0_8
Publikováno v:
The Journal of Chemical Physics. 92:3249-3249
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78fe6abcdce54640725c708c6d86c335
https://doi.org/10.1063/1.458614
https://doi.org/10.1063/1.458614
Autor:
G F Imbusch
Publikováno v:
Physica Scripta. :354-362
Optical transitions on dopant ions in glass exhibit a large inhomogeneous broadening due to the random nature of the sites occupied by the dopant ions. The technique of fluorescence line narrowing (FLN) can overcome this inhomogeneous broadening and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e71caef4382a3db0a827086a2f073f6
https://doi.org/10.1088/0031-8949/1987/t19b/006
https://doi.org/10.1088/0031-8949/1987/t19b/006
Publikováno v:
The Journal of Chemical Physics. 91:1456-1461
The luminescence of Gd3+ in YOCl is reported. From temperature dependent emission spectra and decay measurements, the Judd–Ofelt parameters Ω2 and Ω6 of Gd3+ in YOCl are obtained: Ω2=2.97×10−23 m2 and Ω6=8.65×10−24 m2. The relative consis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09b783c3644a76882e85b1c37fa32f65
https://doi.org/10.1063/1.457106
https://doi.org/10.1063/1.457106