Instrumentation for Multidimensional Luminescence Spectroscopy and Its Application to Low-Temperature Analysis in Shpol'skii Matrixes and Optically Scattering Media

2006 ◽  
Vol 78 (2) ◽  
pp. 484-492 ◽  
Author(s):  
Andres D. Campiglia ◽  
Adam J. Bystol ◽  
Shenjiang Yu
Keyword(s):  
Low Temperature ◽  
Luminescence Spectroscopy ◽  
Temperature Analysis ◽  
Scattering Media

Total Luminescence Spectroscopy of Terrylene in Low-Temperature Shpol'skii Matrixes

1995 ◽  
Vol 99 (46) ◽  
pp. 16835-16841 ◽  
Author(s):  
Krystyna Palewska ◽  
Jozef Lipinski ◽  
Juliusz Sworakowski ◽  
Jerzy Sepio-l ◽  
Hansruedi Gygax ◽  
...  
Keyword(s):  
Low Temperature ◽  
Luminescence Spectroscopy ◽  
Total Luminescence Spectroscopy

scholarly journals Temperature study of magnetic resonance spectra of co-modified (Co,N)-TiO2 nanocomposites

2016 ◽  
Vol 34 (2) ◽  
pp. 242-250 ◽  
Author(s):  
Nikos Guskos ◽  
Janusz Typek ◽  
Grzegorz Zolnierkiewicz ◽  
Aleksander Guskos ◽  
Pawel Berczynski ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Low Temperature ◽  
Cobalt Nanoparticles ◽  
Resonance Spectroscopy ◽  
Temperature Analysis ◽  
Epr Spectrum ◽  
Paramagnetic Resonance ◽  
Magnetic Polarons ◽  
Integrated Intensity ◽  
Electron Paramagnetic

AbstractThe (nCo,N)-TiO2 (n = 1, 5 and 10 wt.% of Co) nanocomposites were investigated by magnetic resonance spectroscopy in 4 K to 290 K range. Analyses of ferromagnetic/electron paramagnetic resonance (FMR/EPR) spectra in terms of four Callen lineshape components revealed the existence of two types of magnetic centers, one derived from metallic cobalt nanoparticles in superparamagnetic (SPM) phase and the other from cobalt clusters in the TiO2 lattice. Additionally, at low temperature the EPR spectrum arising from Ti3+ ions was also registered. Both relaxations of the Landau-Lifshitz type and the Bloch-Bloembergen type played an important role at high temperature in determining the linewidths and the latter relaxation was prevailing at low temperature. Analysis of the integrated intensity showed that the SPM signal is due to small size FM cobalt nanoparticles while the paramagnetic signal from Co clusters originates from those nanoparticles in which the concentration of magnetic polarons is below the percolation threshold.

Low-temperature luminescence spectroscopy using conduction cooling and a pulsed source luminescence spectrometer

The Analyst ◽  
1983 ◽  
Vol 108 (1293) ◽  
pp. 1471 ◽  
Author(s):  
Alun T. Rhys Williams ◽  
Stephen A. Winfield ◽  
James N. Miller
Keyword(s):  
Low Temperature ◽  
Luminescence Spectroscopy ◽  
Conduction Cooling

scholarly journals PPMS-based set-up for Raman and luminescence spectroscopy at high magnetic field, high pressure and low temperature

2015 ◽  
Vol 2 (1) ◽  
pp. 3
Author(s):  
Matthias Hudl ◽  
Peter Lazor ◽  
Roland Mathieu ◽  
Alexander G Gavriliuk ◽  
Viktor V Struzhkin
Keyword(s):  
Magnetic Field ◽  
High Pressure ◽  
Low Temperature ◽  
High Magnetic Field ◽  
Luminescence Spectroscopy ◽  
Set Up

scholarly journals Optical Spectroscopy of Li6Y(BO3)3 Single Crystals Doped with Dysprosium

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 503
Author(s):  
Éva Tichy-Rács ◽  
Ivo Romet ◽  
László Kovács ◽  
Krisztián Lengyel ◽  
Gábor Corradi ◽  
...  
Keyword(s):  
Low Temperature ◽  
Optical Absorption ◽  
Single Crystals ◽  
Crystal Field ◽  
Excited States ◽  
Ground State ◽  
Energy Levels ◽  
Luminescence Spectroscopy ◽  
Wide Spectral Range ◽  
Low Symmetry

The energy levels of Dy3+ ions have been determined in lithium yttrium borate (Li6Y(BO3)3) single crystals in a wide spectral range between 3000 and 40,000 cm−1 using optical absorption and luminescence spectroscopy, which also allow for an analysis of the ground state. The crystal field splittings of the 6H15/2 ground state and all excited states up to the 4F7/2 manifold were obtained at a low temperature, based on luminescence (T = 4.2–78 K) and absorption (T = 8–100 K) measurements, respectively. The numbers of experimentally observed Stark sublevels are in agreement with those expected theoretically for Dy3+ ions occupying a single low symmetry (C1) site.

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