Optical Materials最新文献

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Bioinspired superficially mesoporous silica amorphous photonic crystals for humidity-responsive color switching 生物启发表面介孔二氧化硅非晶光子晶体的湿度响应色开关
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-09 DOI: 10.1016/j.optmat.2025.117599
Yaorui Hao , Yuyang Han , Hongjie Luo , Xiao Huang
{"title":"Bioinspired superficially mesoporous silica amorphous photonic crystals for humidity-responsive color switching","authors":"Yaorui Hao ,&nbsp;Yuyang Han ,&nbsp;Hongjie Luo ,&nbsp;Xiao Huang","doi":"10.1016/j.optmat.2025.117599","DOIUrl":"10.1016/j.optmat.2025.117599","url":null,"abstract":"<div><div>Inspired by the reversible color change of the beetle <em>Tmesisternus isabellae</em> in wet and dry environments, a humidity-responsive amorphous photonic crystals (APCs) film constructed with superficially mesoporous silica microspheres is prepared. The microspheres are synthesized via an etching and re-deposition process, and the APCs-based anti-counterfeiting patterns are fabricated by mask spraying. Upon introducing water vapor, APCs films exhibit a visible color transition from green to purplish-red. The shifts in the reflection peak are approximately 28–57 nm, depending on the thickness of the mesoporous shell. This color shift is clearly distinguishable by the naked eye and remains stable over at least 20 cycles. Meanwhile, APCs arrays composed of non-porous SiO<sub>2</sub> microspheres show negligible variation. Further studies indicate that the perfectly radially aligned mesopores within the porous shell may facilitate water vapor infiltration, leading to a fast, distinct, and reversible optical response. Our results show that encrypted patterns based on this material can be repeatedly revealed under dry and humid conditions, demonstrating strong potential for applications in reversible information encoding and decoding.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117599"},"PeriodicalIF":4.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mn-doped MgFeO3 for UV–visible optoelectronics: A combined experimental and DFT study mn掺杂MgFeO3用于紫外可见光电子学:实验与DFT相结合的研究
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-08 DOI: 10.1016/j.optmat.2025.117600
S. Dahri , M.Y. Messous , O. AitMellal , A. Jabar , L. Bahmad , L.B. Drissi , R. Ahl Laamara
{"title":"Mn-doped MgFeO3 for UV–visible optoelectronics: A combined experimental and DFT study","authors":"S. Dahri ,&nbsp;M.Y. Messous ,&nbsp;O. AitMellal ,&nbsp;A. Jabar ,&nbsp;L. Bahmad ,&nbsp;L.B. Drissi ,&nbsp;R. Ahl Laamara","doi":"10.1016/j.optmat.2025.117600","DOIUrl":"10.1016/j.optmat.2025.117600","url":null,"abstract":"<div><div>This study investigates the synthesis and property tuning of Mn-doped MgFeO<sub>3</sub> perovskites, focusing on their structural, electronic, and optical behaviors. Samples with 1 %, 3 %, and 6 % Mn doping were synthesized using a <strong>co-precipitation</strong> method. <strong>X-ray diffraction (XRD)</strong> confirmed the successful incorporation of Mn without disrupting the orthorhombic perovskite phase (<em>Pnma</em> space group), while changes in lattice constants and crystallite size were observed. <strong>X-ray fluorescence (XRF)</strong> verified elemental composition, and <strong>infrared (IR) spectroscopy</strong> supported the structural integrity through vibrational mode analysis. <strong>Electronic structure calculations</strong> revealed p-type semiconducting behavior in the down-spin channel, indicating spin-dependent charge transport. <strong>UV–visible spectroscopy</strong>, supported by <strong>DFT-based optical calculations</strong>, showed strong absorption in the UV–visible range up to 600 nm (∼2 eV), with intense UV absorption. The <strong>band gap</strong> showed a slight increase with Mn addition, from 1.80 eV (undoped) to 1.97 eV (6 % Mn), suggesting good band edge stability. Optical anisotropy was evident, with directional variation in absorption along the <em>xx</em>, <em>yy</em>, and <em>zz</em> crystallographic axes. These findings demonstrate that Mn-doped MgFeO<sub>3</sub> combines spin-polarized p-type conductivity, broad and intense optical absorption, and anisotropic behavior, making it a strong candidate for UV–visible polarization-sensitive photodetectors and other advanced optoelectronic sensing applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117600"},"PeriodicalIF":4.2,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectral analysis of 4F3/2 level in the Nd3+:YVO4 crystal Nd3+:YVO4晶体中4F3/2能级的光谱分析
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-07 DOI: 10.1016/j.optmat.2025.117596
Zheng Zhang , Yongkang Yao , Jiang Liu , Rongbin Dai , Huiying Xu , Zhiping Cai
{"title":"Spectral analysis of 4F3/2 level in the Nd3+:YVO4 crystal","authors":"Zheng Zhang ,&nbsp;Yongkang Yao ,&nbsp;Jiang Liu ,&nbsp;Rongbin Dai ,&nbsp;Huiying Xu ,&nbsp;Zhiping Cai","doi":"10.1016/j.optmat.2025.117596","DOIUrl":"10.1016/j.optmat.2025.117596","url":null,"abstract":"<div><div>In order to study the spectroscopic characteristics of Nd<sup>3+</sup>:YVO<sub>4</sub> crystal, the absorption spectrum of the Nd<sup>3+</sup>:YVO<sub>4</sub> crystal was measured. The spontaneous emission rates, fluorescence branching ratios of the transitions from <sup>4</sup>F<sub>3/2</sub> level as well as radiative lifetime of the <sup>4</sup>F<sub>3/2</sub> level were calculated based on the Judd-Ofelt (J-O) theory. In addition, for the purpose of characterizing the emission properties of <sup>4</sup>F<sub>3/2</sub> level in Nd<sup>3+</sup>:YVO<sub>4</sub> crystal, the fluorescence emission spectra were measured under the pumping of ∼808 nm laser. The emission cross section spectra of <sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>9/2</sub>, <sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>11/2</sub> and <sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>13/2</sub> transitions were calculated by the Fuchtbauer-Ladenburg (F-L) theory. The peak emission cross sections of 0.9 μm (<sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>9/2</sub>), 1.06 μm (<sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>11/2</sub>) and 1.3 μm (<sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>13/2</sub>) were determined to be 0.32 × 10<sup>−19</sup> cm<sup>2</sup>, 13.1 × 10<sup>−19</sup> cm<sup>2</sup> and 1.93 × 10<sup>−19</sup> cm<sup>2</sup>, respectively. The fluorescence lifetime of <sup>4</sup>F<sub>3/2</sub> level was measured, and the quantum efficiency was calculated as well. In this work, the peak emission cross sections in ∼0.9 and 1.3 μm bands originated from <sup>4</sup>F<sub>3/2</sub> level in Nd<sup>3+</sup>:YVO<sub>4</sub> crystal were determined based on the spectroscopic method for the first time, to the best of our knowledge.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117596"},"PeriodicalIF":4.2,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and characterization of Al-doped ZnO nanorod array as a photocatalyst under visible light irradiation 可见光下掺铝ZnO纳米棒阵列光催化剂的合成与表征
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-07 DOI: 10.1016/j.optmat.2025.117593
L. Al Farsi , F. Al-Marzouqi , B. Al Farsi , M.T. Zar Myint , Srinivasa Rao Varanasi , Abey Issac , M. Al Abri , H.M. Widatallah , T.M. Souier
{"title":"Synthesis and characterization of Al-doped ZnO nanorod array as a photocatalyst under visible light irradiation","authors":"L. Al Farsi ,&nbsp;F. Al-Marzouqi ,&nbsp;B. Al Farsi ,&nbsp;M.T. Zar Myint ,&nbsp;Srinivasa Rao Varanasi ,&nbsp;Abey Issac ,&nbsp;M. Al Abri ,&nbsp;H.M. Widatallah ,&nbsp;T.M. Souier","doi":"10.1016/j.optmat.2025.117593","DOIUrl":"10.1016/j.optmat.2025.117593","url":null,"abstract":"<div><div>Al-doped ZnO NR arrays were successfully synthesized using a low-temperature (∼90 °C) microwave-assisted hydrothermal method. The visible-light-driven photocatalytic performance of NRs was investigated as function of doping and the pH of the growth solution. Both parameters significantly influence the morphology, crystal structure, surface composition, optical and electronic properties of NRs. Particularly, Al doping led to enhanced visible light absorption, with further improvement observed in samples grown in alkaline media. The combined effect of doping and pH also induced a morphological transition from rod-like to obelisk-shaped NR nanostructures. Molecular dynamic simulation revealed that positively charged MB molecules preferentially adsorb onto the negatively charged O-terminated polar facets of ZnO NRs through electrostatic interactions. For NRs grown in neutral pH, Al doping results in enhanced photocatalytic activity, which correlates closely with the improved visible light absorption. In contrast, NRs grown in alkaline media exhibit comparable efficiencies, influenced by their optical absorption and modified morphology. Among the tested samples, AZO 1 % sample demonstrated the highest performance, achieving 52 % degradation of MB under low-intensity visible light LED illumination. The degradation reaction rate for this sample is three times higher than that of undoped ZnO NRs.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117593"},"PeriodicalIF":4.2,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystallographic modulation and optoelectronic phenomena in NiFe2O4/ZrC composites: A multifaceted structural and spectroscopic exploration NiFe2O4/ZrC复合材料的晶体调制和光电子现象:一个多方面的结构和光谱探索
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-06 DOI: 10.1016/j.optmat.2025.117585
Jayashree Patra , Pujarani Parida , Siva Kumar Reddy , Vijay Raj Singh , Virendra Kumar Verma
{"title":"Crystallographic modulation and optoelectronic phenomena in NiFe2O4/ZrC composites: A multifaceted structural and spectroscopic exploration","authors":"Jayashree Patra ,&nbsp;Pujarani Parida ,&nbsp;Siva Kumar Reddy ,&nbsp;Vijay Raj Singh ,&nbsp;Virendra Kumar Verma","doi":"10.1016/j.optmat.2025.117585","DOIUrl":"10.1016/j.optmat.2025.117585","url":null,"abstract":"<div><div>This work investigates the structural and optoelectronic properties of nickel ferrite (NFO) composites with varying zirconium carbide (ZrC) content using x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Raman spectroscopy, thermogravimetric/differential scanning calorimetry (TGA/DSC), ultraviolet–visible (UV–Vis), and photoluminescence (PL) spectroscopy. XRD confirms a cubic spinel NFO structure with emerging ZrC rock-salt peaks, while crystallite sizes (13–22 nm) and microstrain (10<sup>−5</sup>–10<sup>−3</sup>) reveal lattice strain and defect incorporation. FESEM shows morphological evolution from porous NFO aggregates to dense ZrC-rich composites, and elemental mapping affirms homogeneous Ni, Fe, O, Zr, and C distribution. Raman spectra exhibit A<sub>1g</sub> phonon modes (600–700 cm<sup>−1</sup>) alongside ZrC-related bands (200–400 cm<sup>−1</sup>), indicating phonon coupling and phase coexistence. TGA/DSC demonstrates improved thermal stability, with transitions between 400 and 600 °C linked to enthalpy changes. Optical studies reveal a bandgap redshift from 1.88 eV to 1.61 eV, supported by Tauc plots and dielectric analysis. PL spectra display enhanced blue emission at ∼425 nm, associated with efficient defect-mediated recombination. Chromaticity analysis shows bluish-white emission with correlated colour temperatures (6297–6318 K) and a stable colour rendering index (∼89). The combined influence of lattice strain, phonon dynamics, and electronic transitions highlights the promise of NFO–ZrC composites for optoelectronic and photonic applications.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117585"},"PeriodicalIF":4.2,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cyclic phosphazene-based fluorescent probes with schiff base units for ultralow-level Hg2+ detection in real samples and paper-based devices 基于希夫碱基单元的环磷腈荧光探针用于实际样品和纸质设备中的超低水平Hg2+检测
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-06 DOI: 10.1016/j.optmat.2025.117561
Merve Güner , Husniye Ardic Alidagi , Süreyya Oğuz Tümay , Nazmiye Kılıç , Serkan Yeşilot
{"title":"Cyclic phosphazene-based fluorescent probes with schiff base units for ultralow-level Hg2+ detection in real samples and paper-based devices","authors":"Merve Güner ,&nbsp;Husniye Ardic Alidagi ,&nbsp;Süreyya Oğuz Tümay ,&nbsp;Nazmiye Kılıç ,&nbsp;Serkan Yeşilot","doi":"10.1016/j.optmat.2025.117561","DOIUrl":"10.1016/j.optmat.2025.117561","url":null,"abstract":"<div><div>The design and synthesis of new fluorescence sensors based on Schiff base derivatives are essential for environmental and biological applications. In this study, novel anthracene-appended cyclic phosphazenes (compounds <strong>4</strong>–<strong>6</strong>) were developed as selective and effective sensors for Hg<sup>2+</sup> ions. Standard spectroscopic techniques confirmed their structures. Photophysical and fluorescence behaviors were investigated using UV–vis absorption, steady-state and time-resolved fluorescence, and excitation–emission matrix (EEM) analyses. Compounds <strong>4</strong> and <strong>5</strong> exhibited excellent sensitivity and selectivity toward Hg<sup>2+</sup>, with detection limits (LOD) and quantification limits (LOQ) of 0.15–0.28 μM and 0.45–0.84 μM, respectively, along with broad linear ranges (0.90–10.0 μM for 4 and 0.50–6.00 μM for 5). Density functional theory (DFT) calculations supported the proposed sensing mechanisms. Real sample analyses using spike/recovery methods confirmed their practical applicability. Importantly, both compounds were successfully applied as paper-based test kits, enabling rapid and visible detection of Hg<sup>2+</sup> ions in environmental diagnostics due to their clear colorimetric responses.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117561"},"PeriodicalIF":4.2,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on the luminescent characteristics and energy transfer of borosilicate glass co-doped with Dy3+, Tm3+, and Eu3+ under ultraviolet illumination 紫外光照射下Dy3+、Tm3+、Eu3+共掺杂硼硅酸盐玻璃的发光特性及能量转移研究
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-06 DOI: 10.1016/j.optmat.2025.117584
Li Wang, Zhichao Jin, Zhongli Zhu
{"title":"Study on the luminescent characteristics and energy transfer of borosilicate glass co-doped with Dy3+, Tm3+, and Eu3+ under ultraviolet illumination","authors":"Li Wang,&nbsp;Zhichao Jin,&nbsp;Zhongli Zhu","doi":"10.1016/j.optmat.2025.117584","DOIUrl":"10.1016/j.optmat.2025.117584","url":null,"abstract":"<div><div>The SiO<sub>2</sub>–B<sub>2</sub>O<sub>3</sub>–Bi<sub>2</sub>O<sub>3</sub>–CaO (SBBC) luminous glass samples, co-doped with Tm<sup>3+</sup>, Dy<sup>3+</sup>, and Eu<sup>3+</sup> ions, were prepared. Upon 362 nm stimulation, the co-activated SBBC glasses exhibited distinct spectral transitions corresponding to Tm<sup>3+</sup>:<sup>1</sup>D<sub>2</sub>→<sup>3</sup>F<sub>4</sub>, Dy<sup>3+</sup>: <sup>4</sup>F<sub>9/2</sub> → <sup>6</sup>H<sub>15/2</sub>, <sub>13/2</sub>, as well as Eu<sup>3+</sup>: <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>2</sub> in the 400–700 nm. Moreover, the study identified two significant energy transfer mechanisms, Dy<sup>3+</sup>→Tm<sup>3+</sup> and Dy<sup>3+</sup>→Eu<sup>3+</sup>, which contribute to the enhanced photoluminescence of the glasses. The optimal CIE coordinates were determined to be (0.3312, 0.3436), with CCT of 5552 K, as well as color purity of 2.55 %. Importantly, an investigation into the thermal stability of selected glass revealed an impressive ΔT of 140 °C. This study shows the potential value of glass in the field of W-LED.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117584"},"PeriodicalIF":4.2,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical behavior of multilayer DLC films produced by periodically altered RF voltage: Experimental and theoretical model 周期性改变射频电压产生多层DLC薄膜的光学行为:实验和理论模型
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-04 DOI: 10.1016/j.optmat.2025.117556
Eray Humali , Goksel Hizli , Kursat Kazmanli
{"title":"Optical behavior of multilayer DLC films produced by periodically altered RF voltage: Experimental and theoretical model","authors":"Eray Humali ,&nbsp;Goksel Hizli ,&nbsp;Kursat Kazmanli","doi":"10.1016/j.optmat.2025.117556","DOIUrl":"10.1016/j.optmat.2025.117556","url":null,"abstract":"<div><div>Diamond-like carbon (DLC) films are generally used as protective layers for environmental effects and optic filters in laser seekers and infrared sensors. The sp<sup>2</sup>/sp<sup>3</sup> bond ratio of DLC films affects their optical properties. Therefore, if the DLC films are formed as a stack of layers with different sp<sup>2</sup>/sp<sup>3</sup> bond structures, the reflectance and transmittance of the film can be tuned to a specific wavelength in the infrared region of the electromagnetic spectrum.</div><div>In this study, DLC thin films were deposited on silicon and glass substrates with ultra-low thermal expansion coefficient by using RF PE-CVD technique. In the first step of the study, single-layer DLC films were produced with different RF voltages (from −150V to −450V). The bond characteristics of the produced films with different bias voltages were characterized by Raman Spectroscopy and XPS techniques. The sp<sup>2</sup>/sp<sup>3</sup> ratios and hydrogen contents were measured by using XPS and Raman Spectroscopy techniques. The refractive index (<span><math><mrow><mi>n</mi></mrow></math></span>) and extinction coefficient (<span><math><mrow><mi>k</mi></mrow></math></span>) were investigated in the visible and NIR regions of the electromagnetic spectrum. An optical model based on the “Herzberger Dispersion Equation” approach was also utilized. The experimental and simulation results based on the model were compared to justify the theoretical approach. The number of layers had a critical role in the reflection intensity of the tuned center wavelength of the multilayer films. The thickness of the layers had shifted the center wavelength in the spectrum.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117556"},"PeriodicalIF":4.2,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
S-band amplified spontaneous emission light source based on Tm3+-doped fluorotellurite fibers 基于Tm3+掺杂氟碲酸盐光纤的s波段放大自发发射光源
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-03 DOI: 10.1016/j.optmat.2025.117580
Xiaohui Guo , Zhixu Jia , Linghao Cui , Junjie Wang , Chuanze Zhang , Fanchao Meng , Yasutake Ohishi , Weiping Qin , Guanshi Qin
{"title":"S-band amplified spontaneous emission light source based on Tm3+-doped fluorotellurite fibers","authors":"Xiaohui Guo ,&nbsp;Zhixu Jia ,&nbsp;Linghao Cui ,&nbsp;Junjie Wang ,&nbsp;Chuanze Zhang ,&nbsp;Fanchao Meng ,&nbsp;Yasutake Ohishi ,&nbsp;Weiping Qin ,&nbsp;Guanshi Qin","doi":"10.1016/j.optmat.2025.117580","DOIUrl":"10.1016/j.optmat.2025.117580","url":null,"abstract":"<div><div>We demonstrated a 114 mW S-band amplified spontaneous emission (ASE) light source based on Tm<sup>3+</sup> doped fluorotellurite glass fibers (TDFTFs). The TDFTFs had a core diameter of ∼8 μm and a Tm<sup>3+</sup> doping concentration of ∼4000 ppm. By using a ∼2.5 m-long TDFTF as the gain medium and a 1400/1570 nm dual-wavelength pump technique, broad ASE ranging from 1440 to 1540 nm was achieved for the pump power of ∼1803/105 mW at 1400/1570 nm. The spectral bandwidth for power density &gt; -20 dBm/nm was ∼84 nm (1448–1532 nm), the obtained maximum output power was about ∼114 mW, and the corresponding slope efficiency was ∼27.5 %. Our results show that TDFTFs are promising gain media for constructing broadband S-band ASE light sources.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117580"},"PeriodicalIF":4.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TeO2–BaO–Bi2O3 tellurite optical glasses II. - Linear and non-linear optical and magneto-optical properties TeO2-BaO-Bi2O3碲酸盐光学玻璃II。-线性和非线性光学和磁光性质
IF 4.2 3区 材料科学
Optical Materials Pub Date : 2025-10-03 DOI: 10.1016/j.optmat.2025.117572
J. Hrabovsky , J.R. Love , L. Strizik , T. Ishibashi , S. Zollner , M. Veis
{"title":"TeO2–BaO–Bi2O3 tellurite optical glasses II. - Linear and non-linear optical and magneto-optical properties","authors":"J. Hrabovsky ,&nbsp;J.R. Love ,&nbsp;L. Strizik ,&nbsp;T. Ishibashi ,&nbsp;S. Zollner ,&nbsp;M. Veis","doi":"10.1016/j.optmat.2025.117572","DOIUrl":"10.1016/j.optmat.2025.117572","url":null,"abstract":"<div><div>The present study investigates the linear and non-linear optical and magneto-optical properties of TeO<sub>2</sub>–BaO–Bi<sub>2</sub>O<sub>3</sub> (TeBaBi) glasses prepared by the conventional melt-quenching technique at 900 °C. Prepared glass composition ranges across the whole glass-forming-ability (GFA) region focusing on mutual substitution trends of constituent oxides, where TeO<sub>2</sub>: 55<span><math><mo>−</mo></math></span>85 mol.%, BaO: 10<span><math><mo>−</mo></math></span>35 mol.%, Bi<sub>2</sub>O<sub>3</sub>: 5<span><math><mo>−</mo></math></span>15 mol.%. Studied glasses exhibit high values of linear (<span><math><mi>n</mi></math></span> <sub>632</sub> <span><math><mrow><mo>≈</mo><mn>1</mn><mo>.</mo><mn>922</mn><mo>−</mo></mrow></math></span>2.084) and non-linear refractive index (<span><math><mi>n</mi></math></span> <sub>2</sub> <span><math><mrow><mo>≈</mo><mn>1</mn><mo>.</mo><mn>63</mn><mtext>–</mtext><mn>3</mn><mo>.</mo><mn>45</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>11</mn></mrow></msup></mrow></math></span> esu), Verdet constant (<span><math><mi>V</mi></math></span> <sub>632</sub> <span><math><mrow><mo>≈</mo><mn>26</mn><mo>.</mo><mn>7</mn><mo>−</mo></mrow></math></span>45.3 radT<sup>−1</sup>m<sup>−1</sup>) and optical band gap energy (<span><math><mi>E</mi></math></span> <sub>g</sub> <span><math><mrow><mo>≈</mo><mn>3</mn><mo>.</mo><mn>1</mn><mo>−</mo></mrow></math></span>3.6 eV). The introduction of TeO<sub>2</sub> and Bi<sub>2</sub>O<sub>3</sub> results in increase of both linear/non-linear refractive index and Verdet constant, with a more pronounced influence of Bi<sub>2</sub>O<sub>3</sub>. Measured spectral dispersion of refractive index and Verdet constant were used for estimation of magneto-optic anomaly parameter (<span><math><mrow><mi>γ</mi><mo>≈</mo></mrow></math></span> 0.71–0.92), which may be used for theoretical modeling of magneto-optic response in diamagnetic TeBaBi glasses. Additionally, the properties of the prepared TeBaBi glasses were directly compared to those of the TeO<sub>2</sub>–ZnO–BaO glass system, which was prepared and characterized under similar experimental conditions. The compositional dependence of the refractive index in both glass systems was described using multilinear regression analysis, demonstrating high correlation and uniformity of estimation across the entire GFA region. This makes them highly promising for precise dispersion engineering and construction of optical devices operating from visible to mid-infrared spectral region.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"169 ","pages":"Article 117572"},"PeriodicalIF":4.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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