Structural and optical properties of Sm~(3+)-doped borate glasses for luminescent applications

Deepa M.; Doddoji Ramachari; Chandrasekhar A. V.

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Structural and optical properties of Sm~(3+)-doped borate glasses for luminescent applications

机译：掺Sm〜（3+）硼酸盐玻璃的结构和光学性能

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In this work, most interesting optical investigations are carried out with the glass composition (20 - x) CdCO3 + 15 Li2CO3 + 15 Na2CO3 + 50 H3BO3 + xSm(2)O(3) (where x = 0.1, 0.5, 1.0, 3.0, 4.0 and 5.0 mol%) prepared with conservative melt-quenching technique. DSC verifies the annealing temperature and thermal stability of the prepared glass. X-ray diffraction technique is employed to inspect the amorphous structure of the glasses. FTIR technique helps to view the vibrational band positions of the host material. For optical studies, optical absorption and emission measurements are used. From the absorption spectra, Judd-Ofelt (JO) parameters (ohm(2), ohm(4), ohm(6)), rms value of oscillator strength (delta rms, nephelauxetic parameter (beta) over bar , bonding parameter (delta) and optical band gaps are evaluated. Radiative properties such as radiative transition probabilities (A(T)), branching ratios (beta(cal), beta(exp)) and stimulated emission cross section (sigma(emi)) are calculated using JO theory. The higher stimulated emission cross section (14.39 x 10(-22) cm(2)), optical gain (36.69 x 10(-25) cm(2) s) indicate that 1.0 mol% of Sm3+-doped borate glass would be a potential gain medium for solid state laser application at 603 nm. Color coordinates of the glasses located in the reddish-orange region could be useful for white light-emitting application.

机译：在这项工作中，最有趣的光学研究是使用玻璃成分（20-x）CdCO3 + 15 Li2CO3 + 15 Na2CO3 + 50 H3BO3 + xSm（2）O（3）（其中x = 0.1、0.5、1.0、3.0）（4.0和5.0mol％）通过保守的熔融淬火技术制备。 DSC验证制备的玻璃的退火温度和热稳定性。 X射线衍射技术用于检查玻璃的无定形结构。 FTIR技术有助于查看主体材料的振动带位置。对于光学研究，使用光学吸收和发射测量。从吸收光谱中可以看出Judd-Ofelt（JO）参数（ohm（2），ohm（4），ohm（6）），振荡器强度的rms值（δrms，跨栏的肾上腺素参数（beta），键合参数（delta））和光学带隙，使用JO计算辐射性质，例如辐射跃迁概率（A（T）），分支比（beta（cal），beta（exp））和受激发射截面（sigma（emi））。理论上，较高的受激发射横截面（14.39 x 10（-22）cm（2）），光学增益（36.69 x 10（-25）cm（2）s）表明，掺杂Sm3 +的硼酸盐玻璃将占1.0 mol％。作为在603 nm固态激光应用中的潜在增益介质，位于红橙色区域的玻璃的色坐标可能对发白光应用很有用。

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来源
《Optical and quantum electronics》 |2019年第12期|395.1-395.19|共19页
作者
Deepa M.; Doddoji Ramachari; Chandrasekhar A. V.;
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作者单位

Sri Venkateswara Univ Dept Phys Tirupati 517502 Andhra Pradesh India|Sri Venkateswara Arts Coll Phys Res Ctr Dept Phys Tirupati 517502 Andhra Pradesh India;

Ton Duc Thang Univ Ceram & Biomat Res Grp Adv Inst Mat Sci Ho Chi Minh City Vietnam|Ton Duc Thang Univ Fac Appl Sci Ho Chi Minh City Vietnam;

Sri Venkateswara Arts Coll Phys Res Ctr Dept Phys Tirupati 517502 Andhra Pradesh India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Sm3+-doped glasses; XRD; FTIR; JO parameters; Photoluminescence; Color coordinates;

机译：掺Sm3 +的眼镜;XRD;FTIR;JO参数;光致发光;颜色坐标;

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Structural and optical properties of Sm~(3+)-doped borate glasses for luminescent applications

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