Experimental determination of the luminescent quantum efficiency of the laser emitting level of ions in lithium niobate
Departamento de Física de Materiales, C-IV, Universidad Autónoma
de Madrid, 28049, Madrid, Spain
2 Centro de Investigaciones Ópticas (CIOp) - La Plata, Argentina
Accepted: 5 June 1998
The luminescent quantum efficiency of the laser emitting level () of ions in lithium niobate () is obtained experimentally by using a method based on the simultaneous and multiwavelength measurement of photoacoustic and luminescent signals after modulated continuous laser excitation. The experimental results give a high luminescence quantum efficiency, (), which is in agreement with the highest of the values reported in the literature from Judd-Ofelt calculations.
PACS: 42.70.Hj – Laser materials / 78.55.Hx – Other solid inorganic materials / 78.20Nv – Thermooptical and photothermal effects
© EDP Sciences, 1998