Ge-Te-Bi纳米胶体溶液非线性光学性质的浓度依赖性增强

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-03-14 DOI:10.1080/01411594.2023.2186231

Reena Gadhwal, Hukum Singh, A. Devi

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引用次数: 0

摘要

摘要研究了三种不同浓度的Ge20Te75Bi5 (GTB)纳米胶体溶液的制备及其非线性光学表征。研究了GTB纳米胶体膜的透射光谱。用红外光谱测定了纳米胶体溶液中胺的存在。采用78 × 1012 W/cm2激光强度下的z扫描迹线研究了样品的非线性特性。非线性吸收系数随纳米胶体浓度的增加而增大。所报道的高非线性响应对光学限制应用是有用的。研究了不同浓度下的光限行为。

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Concentration-dependent enhancement of nonlinear optical properties in Ge-Te-Bi nano colloidal solutions

ABSTRACT We have investigated the preparation and nonlinear optical characterization of Ge20Te75Bi5 (GTB) nano colloidal solutions using the z-scan technique for three different concentrations. The transmission spectra of GTB nano colloid films have been investigated. FTIR spectra have been measured to confirm the presence of amines in nano colloidal solutions. Z-scan traces at 78 × 1012 W/cm2 laser intensity were used to study the nonlinearity of the samples. The nonlinear absorption coefficient increases with an increase in the concentration of nano colloids. The reported high nonlinear response is useful for optical limiting applications. The optical limiting behavior is also studied against different concentrations.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.