Structure-terahertz property relationship in tellurite glasses

Structure-terahertz (THz) property relationship for sodium tungsten tellurite (NWT) and lanthanum tungsten tellurite (LWT) glass systems is reported and is the first of its kind for non-silicate oxide glasses. Raman spectroscopy was used to determine structural units, connectivity, and glass network...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2022-11, Vol.128 (11), Article 1001
Main Authors: Tostanoski, Nicholas J., Sundaram, S. K.
Format: Article
Language:English
Subjects:
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Glass
Lanthanum
Linkages
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Raman spectroscopy
Refractivity
Surfaces and Interfaces
Tellurium dioxide
Thin Films
Tungsten oxides
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Summary:Structure-terahertz (THz) property relationship for sodium tungsten tellurite (NWT) and lanthanum tungsten tellurite (LWT) glass systems is reported and is the first of its kind for non-silicate oxide glasses. Raman spectroscopy was used to determine structural units, connectivity, and glass network. Terahertz time-domain spectroscopy (THz-TDS) was used to record the THz refractive index, n (THz), at 0.502 THz. NWT and LWT glasses record higher measurable n (THz) correlated to a glass network with substantial TeO 2 and WO 3 content with mixed Te–O–W linkages and TeO 2 - or WO 3 -rich content with homonuclear Te–O–Te or W–O–W linkages, respectively. Concurrent examination revealed three distinct regions of n (THz).
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-022-06148-x