8 research outputs found
Structure and Anti-Stokes Luminescence of Yb-containing Glass Co-doped with Eu, Ho and Er
The aim of our work was synthesis of transparent silicious media high-doped with Yb–Er, Yb–Ho and Yb–Eu and determination of the media structure and spectral-luminescent properties in the anti-Stokes region at excitation through the Yb3+ ions
Structure and Anti-Stokes Luminescence of Yb-containing Glass Co-doped with Eu, Ho and Er
The aim of our work was synthesis of transparent silicious media high-doped with Yb–Er, Yb–Ho and Yb–Eu and determination of the media structure and spectral-luminescent properties in the anti-Stokes region at excitation through the Yb3+ ions
Optical Materials Activated with CeO2:Ln3+ Nanoparticles
Silica glasses and siliceous powders activated with CeO2:Ln3+ (Ln ¹ Ce) nanoparticles were synthesized by the sol-gel method and their structural and spectral-luminescent properties were investigated. It is shown that the main features of the Ln3+ ions are a high relative intensity of magnetic dipole transitions and sufficiently effective sensitization of their luminescence with labile photoreduced (Ce4+)- ions by means of superexchange mechanism or/and by transfer of electron
Optical Materials Activated with CeO2:Ln3+ Nanoparticles
Silica glasses and siliceous powders activated with CeO2:Ln3+ (Ln ¹ Ce) nanoparticles were synthesized by the sol-gel method and their structural and spectral-luminescent properties were investigated. It is shown that the main features of the Ln3+ ions are a high relative intensity of magnetic dipole transitions and sufficiently effective sensitization of their luminescence with labile photoreduced (Ce4+)- ions by means of superexchange mechanism or/and by transfer of electron
Passive Q-switching and mode-locking for the generation of nanosecond to femtosecond pulses
Doped YVO₄ crystals: growing, properties and applications
Results of growing YVO₄ crystals doped with Nd, Er, Yb, Сr are given. Problems of obtaining crystals of high optical quality are discussed. Spectral and generating characteristics of these crystals are discussed. Spectral data of Сr⁵⁺ in YVO₄ are given. They suggest to create active laser medium with passive Q-switching in single Nd³⁺, Сr⁵⁺:YVO₄ crystal.Приведено результати вирощування кристалiв YVO₄, активованих Nd, Er, Yb, Cr. Обговорюються питання отримання кристалiв високої оптичної якостi. Представлено їх спектроскопiчнi i генерацiйнi характеристики. Приведено спектральнi данi Сr⁵⁺ в YVO₄ якi припускають створення в одному кристалi Nd³⁺, Сr⁵⁺:YVO₄ середовища з пасивною модуляцiєю добротностi.Приведены результаты выращивания кристаллов YVO₄, активированных Nd, Er, Уb, Cr. Обсуждаются вопросы получения кристаллов высокого оптического качества. Представлены их спектроскопические и генерационные характеристики. Приведены спектральные данные Сr⁵⁺ в YVO₄ которые предполагают создание в одном кристалле Nd³⁺, Сr⁵⁺ :YVO₄ . Активной лазерной среды с пассивной модуляцией добротности