کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1494038 1510796 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Luminescence quenching and recovering in photo-thermo-refractive silver-ion doped glasses
ترجمه فارسی عنوان
لومینسانس خنک سازی و بازیابی در عینک های دوتایی یونی نقره ای ترموگرافی
کلمات کلیدی
لومینسانس خنک کننده، خوشه مولکولی نقره ای، شیشه ترموکرتوری، تابش لیزری، اشعه ماوراء بنفش
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی


• After nanosecond laser irradiation at 355 nm a luminescence quenching was observed in the irradiated region.
• The thermal treatment below glass transition temperature restores the luminescence of silver molecular clusters with complex spatial distribution of luminescence intensity inside the irradiated region.
• UV lamp irradiation achieves the same result without any inhomogeneity.

A spectroscopic investigation of luminescent centers transformation in photo-thermo-refractive glass by using ultraviolet (UV) nanosecond laser pulses with radiation wavelength 355 nm was performed. Initially the glass was irradiated by UV lamp and thermal-treated that causes a neutral silver molecular clusters luminescence in a visible spectral region. After the laser irradiation a luminescence quenching was observed in the irradiated region. The thermal treatment below glass transition temperature restores the luminescence of silver molecular clusters with complex spatial distribution of luminescence intensity inside the irradiated region. UV lamp irradiation achieves the same result without any inhomogeneity. The observed effects are caused by photoionization and reduction of subnanosized silver molecular clusters with the participation of cerium and antimony ions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 38, December 2014, Pages 233–237
نویسندگان
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