Analysis of 750 nm laser emission of Ho3+ in tellurite, germanate and phosphate glasses

R. Reisfeld*, Y. Kalisky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Time evolution of the 5F45S25I8 fluorescence of Ho3+-doped zinc tellurite glasses was studied from 37 to 300 K. The time needed to achieve equilibrium between 5F4 and 5S2 states is 0.6 μs. Multiphonon relaxation from 5F4, 5S2 and 5F5 levels of Ho3+ in zinc tellurite was studied. Two types of phonons were found to be effective. It is expected that at low temperature (37 K), laser emission, mainly from the 5S2 level, will be obtained with a cross section of 2.78 × 10−20 cm2. Yet at room temperature laser emission from 5F4 or 5S2 can be obtained.

Original languageEnglish
Pages (from-to)443-447
Number of pages5
JournalChemical Physics Letters
Volume75
Issue number3
DOIs
StatePublished - 1980

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