TY - JOUR
T1 - Analysis of 750 nm laser emission of Ho3+ in tellurite, germanate and phosphate glasses
AU - Reisfeld, R.
AU - Kalisky, Y.
PY - 1980
Y1 - 1980
N2 - Time evolution of the 5F45S2 → 5I8 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.
AB - Time evolution of the 5F45S2 → 5I8 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.
UR - http://www.scopus.com/inward/record.url?scp=4243771071&partnerID=8YFLogxK
U2 - 10.1016/0009-2614(80)80551-3
DO - 10.1016/0009-2614(80)80551-3
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AN - SCOPUS:4243771071
SN - 0009-2614
VL - 75
SP - 443
EP - 447
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 3
ER -