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Transparent Thermal Radiation Emitters
Abstract
Er2O3 and ruby selective and continual emission spectra in visible and near IR ranges were experimentally investigated under laser-thermal excitation by continuous and pulsed radiation of electric discharge CO2 lasers at λ = 10.6 μ. Selective spectra are radiated by Er3+ and Cr3+ions. Continual radiation is thermodynamically equilibrial electromagnetic field in crystalline lattice with proper temperature. Effect of the delay of thermal emission fronts and radiation intensity maxima in oxides with respect to laser pulses is explained by different kinetics of the layer heating and continual radiation.
About the Author
V. М. Мarchenko
A.M. Prokhorov General Physics Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Moscow
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Review
For citations:
Мarchenko V.М. Transparent Thermal Radiation Emitters. Zhurnal Prikladnoii Spektroskopii. 2025;92(3):400-404. (In Russ.)
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