Liquid-phase epitaxy of single-crystal erbium-ytterbium codoped YAl3(BO3)(4) layers as key components of planar waveguidesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:YAl3(BO3)(4) (YAB) crystals 10 x 10 x 8 mm in dimensions were grown on point seeds from a potassium-trimolybdate-based high-temperature solution. The crystals were used as substrates for liquid-phase epitaxy of (Er,Yb):YAB single-crystal films 50 to 100 mu m in thickness. The hexagonal cell parameters of nominally undoped and erbium-ytterbium codoped YAB were determined as functions of temperature by high-temperature X-ray diffraction and were used to evaluate the thermal expansion coefficients of the materials. We have demonstrated waveguiding and measured the optical loss in the films.