Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Stefan R. Lüthi"'
Publikováno v:
Inorganic Chemistry. 41:5024-5033
The spectral and geometric trends of Ln(trensal) complexes (H(3)trensal = 2,2',2' '-tris(salicylideneimino)triethylamine) along the lanthanide series are analyzed. Low-temperature polarized absorption and luminescence spectra are reported for nine of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59fe6abe1f90bd77667ea78910d8cab7
https://doi.org/10.1021/ic011276q
https://doi.org/10.1021/ic011276q
Publikováno v:
The Journal of Physical Chemistry B. 104:11045-11057
Materials displaying intrinsic optical bistability (IOB), i.e., allowing the coexistence of two stable steadystate excitation rates for a single given excitation power, are of interest for potential technological applications related to optical data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9caec0015b413b2685f28c66b96f099
https://doi.org/10.1021/jp001988m
https://doi.org/10.1021/jp001988m
Publikováno v:
Physical review B: Condensed matter and materials physics, 61(5), 3337-3346. American Physical Society
We show theoretically with the simplest possible model that the intensity of an upconversion luminescence that is excited by the sequential absorption of n photons has a dependence on absorbed pump power P, which may range from the limit of Pn down t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afc86b9a6862571699e64ac12cd291d2
https://doi.org/10.1103/physrevb.61.3337
https://doi.org/10.1103/physrevb.61.3337
Publikováno v:
Physical Review B. 60:162-178
A detailed study of upconversion processes in Cs3Er2X9 (X = Cl, Br, I) crystals and in the diluted systems Cs3Lu2Cl9:1% Er3+, Cs3Lu2Br9:1% Er3+, and Cs3Y2I9:1% Er3+ is presented. Efficient two-, three-, and four-step upconversion excitation along the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::157b6a8e3c6114936c437b8f2479957c
https://doi.org/10.1103/physrevb.60.162
https://doi.org/10.1103/physrevb.60.162
Publikováno v:
The Journal of Chemical Physics. 110:12033-12043
Energies and intensities of 114, 101, and 76 f–f absorption transitions of Er3+ are determined by high-resolution spectroscopy in the closely related host lattices Cs3Lu2Cl9, Cs3Lu2Br9, and Cs3Y2I9, respectively. The observed trends in the energy-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2221e6578526b37557b71c579d97b8a
https://doi.org/10.1063/1.479139
https://doi.org/10.1063/1.479139
Publikováno v:
Physical Review Letters. 82:3050-3053
We report the first observation of intrinsic optical bistability in ${\mathrm{CsCdBr}}_{3}:1%$ ${\mathrm{Yb}}^{3+}$ and show, using site-selective spectroscopy, that only the asymmetric, strongly coupled ${\mathrm{Yb}}^{3+}$ ion-pair minority site gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55d86077bf7b9f33ec82de43d6414f7d
https://doi.org/10.1103/physrevlett.82.3050
https://doi.org/10.1103/physrevlett.82.3050
Publikováno v:
Journal of Luminescence. :447-450
Cooperative visible upconversion is reported in crystals of Cs 3 Lu 2 Br 9 : 1% Yb 3+ , Cs 3 Lu 2 Br 9 : 10% Yb 3+ , and Cs 3 Yb 2 Br 9 . The near-infrared emission decays twice as fast as the visible emission as expected from theory. Both, the 10% a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c8dd8846c9b650d285dce32026160c
https://doi.org/10.1016/s0022-2313(97)00233-0
https://doi.org/10.1016/s0022-2313(97)00233-0
Publikováno v:
Integrated Photonics Research.
We present a compact 8-port EDFA for banded-channel amplification. The unit comprises an 8-port 980-nm pump source and an 8-port gain block, achieving saturated output powers in excess of 15 dBm/port with excellent port-to-port uniformity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53a9d7b7c9484fa1190b042b049ad5be
https://doi.org/10.1364/ipr.2002.jw6
https://doi.org/10.1364/ipr.2002.jw6
Publikováno v:
Inorganic chemistry. 40(21)
Polarized absorption and emission spectra of trigonal single crystals of an Er(III) complex coordinated to a heptadentate tripodal ligand are reported at temperatures between 8 and 298 K. The assigned energy levels below the onset of ligand absorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f11986846bfa0f7ea925bcb3f5fb380
https://pubmed.ncbi.nlm.nih.gov/11578186
https://pubmed.ncbi.nlm.nih.gov/11578186
Publikováno v:
Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178).
We report the first observation of intense visible upconversion luminescence from Cs/sub 3/Lu/sub 2/Cl/sub 9/:Er/sup 3+/ crystals excited by a 1.53-/spl mu/m tunable cw diode laser amplified by an erbium-doped fiber amplifier. Spectral and dynamic pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14dcfe8a6f760bd6a7a3f9d32a188eae
https://doi.org/10.1109/cleo.1998.676030
https://doi.org/10.1109/cleo.1998.676030