掺银ZnS纳米结构的光学性质

IF 2.9 4区物理与天体物理 Q2 OPTICS

Journal of Nonlinear Optical Physics & Materials Pub Date : 2023-11-02 DOI:10.1142/s0218863523500868

E. Ramya, Dushyant Kushavah, D. Narayana Rao, Dong Xiang

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引用次数: 0

摘要

采用化学方法在室温下制备了不同浓度(银:银1%、银3%、银5%、银10%)掺杂和未掺杂硫化锌(ZnS)纳米结构。在ZnS纳米结构中掺杂Ag修饰了其光学性质。采用扫描电子显微镜(SEM)和x射线衍射仪(XRD)对稳定的ZnS:Ag纳米结构的尺寸和结晶度进行了表征。紫外-可见吸收光谱证实了纳米结构的形成。在ZnS:Ag-10%时，纳米结构的发光强度急剧增加，并通过荧光光谱仪进行了表征。利用z扫描装置发现了非线性光学特性，并作为光学限制器。非线性吸收系数[公式:见文]和非线性折射率([公式:见文])分别在10[公式:见文][公式:见文]cm/W和10[公式:见文][公式:见文]cm 2 /W范围内。光限幅阈值为0.11 J/ cm2。这些纳米结构可以用作光学限制器。

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Optical properties of silver-doped ZnS nanostructures

Silver (Ag)-doped and un-doped Zinc sulfide (ZnS) nanostructures (NSs) with different concentrations (ZnS: Ag 1%, 3%, 5%, 10%) were prepared by using the chemical method at room temperature. Doping of Ag into ZnS nanostructures modified its optical properties. The size and crystallinity of stabilized ZnS:Ag nanostructures are confirmed with SEM (Scanning electron microscopy) and XRD (X-ray diffraction). The formation of nanostructures is justified by UV-visible absorption spectra. The luminescence intensity of nanostructures has increased drastically at ZnS:Ag-10% and is characterized by a fluorescence spectrometer. The nonlinear optical properties are found by using the Z-scan setup and act as optical limiters. The nonlinear absorption coefficient [Formula: see text] and nonlinear refractive index ([Formula: see text] are in the range of 10[Formula: see text][Formula: see text]cm/W and 10[Formula: see text][Formula: see text]cm 2 /W, respectively. The optical limiting threshold value is 0.11 J/cm 2 . These nanostructures can be used as optical limiters.

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来源期刊

Journal of Nonlinear Optical Physics & Materials 物理-光学

CiteScore

3.00

自引率

48.10%

发文量

审稿时长

3 months

期刊介绍： This journal is devoted to the rapidly advancing research and development in the field of nonlinear interactions of light with matter. Topics of interest include, but are not limited to, nonlinear optical materials, metamaterials and plasmonics, nano-photonic structures, stimulated scatterings, harmonic generations, wave mixing, real time holography, guided waves and solitons, bistabilities, instabilities and nonlinear dynamics, and their applications in laser and coherent lightwave amplification, guiding, switching, modulation, communication and information processing. Original papers, comprehensive reviews and rapid communications reporting original theories and observations are sought for in these and related areas. This journal will also publish proceedings of important international meetings and workshops. It is intended for graduate students, scientists and researchers in academic, industrial and government research institutions.