Interaction between femtosecond laser pulses and CdSxSe1-x quantum dots in glasses

被引：7
|
作者：
Osellame, R.
Vazquez, R. Martinez
Cerullo, G.
Ramponi, R.
Svelto, O.
Russo, V.
Bassi, A. Li
Bottani, C. E.
Spinella, C.
机构：
[1] CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy
[2] Politecn Milan, Dipartmento Fis, I-20133 Milan, Italy
[3] CNISM, Ctr NanoEngn Mat & Surfaces, I-20133 Milan, Italy
[4] Politecn Milan, Dipartimento Ingn Nucl, I-20133 Milan, Italy
[5] CNR, Ist Microelettron & Microsistemi, I-95121 Catania, Italy
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.76.045340
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Interaction between femtosecond laser pulses and semiconductor nanocrystals is thoroughly studied. Absorption, Raman, and photoluminescence spectra together with transmission electron microscopy images are presented for irradiated regions and compared to those of the pristine material. A simple model based on charge transfer to the glass matrix from the nanocrystals is adopted to explain the strong color changes and the photoluminescence quenching induced by the femtosecond laser pulses.
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页数：7
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