Lasing and mode selection in erbium doped 70SiO2-30HfO2 coated microspheres

Davor Ristić,Andrea Chiappini,Maurizio Mazzola,Patrice Féron,Hrvoje Gebavi,Mile Ivanda,Maurizio Ferrari

Optical Materials（2019）

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摘要

Silica microspheres were coated using an erbium activated silica hafnia thin film in order to produce microlasers. Lasing was observed and the lasing modes were identified. Only the modes whose electric field is located closest to the surface were found to exhibit lasing.

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关键词

Microresonator,Erbium,Lasing,Whispering gallery modes

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