Optical Materials最新文献_第5页

Oxidation of silicon on substrate induced bubble-like damage of Mo/Si mirror irradiated by femtosecond EUV pulses

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-20 DOI: 10.1016/j.optmat.2025.116962

Jiahao Li , Yunqi Peng , Yuanan Zhao , Xiangyu Zhu , Ligong Ke , Jiaoling Zhao , Ge Zhang , Tao Wang , Zhilin Xia , Zhangfan Wei , Xiaoran Li , Jianda Shao

{"title":"Oxidation of silicon on substrate induced bubble-like damage of Mo/Si mirror irradiated by femtosecond EUV pulses","authors":"Jiahao Li , Yunqi Peng , Yuanan Zhao , Xiangyu Zhu , Ligong Ke , Jiaoling Zhao , Ge Zhang , Tao Wang , Zhilin Xia , Zhangfan Wei , Xiaoran Li , Jianda Shao","doi":"10.1016/j.optmat.2025.116962","DOIUrl":"10.1016/j.optmat.2025.116962","url":null,"abstract":"<div><div>Mo/Si multilayers are commonly used as extreme ultraviolet (EUV) reflection coatings owing to their high reflectivity at EUV wavelengths. This study utilized Shanghai Soft X-ray Free-Electron Laser (SXFEL) to generate 13.5 nm, ∼300 fs pulse lasers, and the laser damage behaviors of Mo/Si multilayers were investigated. The designed Mo/Si multilayer achieved high reflectivity at an incident angle of 20°. After exposing the surface to an average of 20 laser pulses per point at normal incidence, bubble-like damage was observed. Monte Carlo method was employed to obtain the energy absorption distribution of Mo/Si multilayers under EUV laser radiation. It was confirmed that the cause of EUV laser damage to Mo/Si multilayers was the enhancement of energy absorption, leading to the melting of the layers. High-energy absorption occurred at a place close to the substrate induced by the oxidation of Si and on the top of the multilayers, which resulted in multilayers detaching from the substrate and forming bubble-like morphology. This intensified interlayer diffusion and altered crystal orientation, resulting in irreversible damage to the multilayers.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116962"},"PeriodicalIF":3.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685369","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

Light selective reflection asymmetry in cholesteric layer with planar–conical anchoring

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-19 DOI: 10.1016/j.optmat.2025.116924

M.A. Lesnoy , M.N. Krakhalev , W. Lee , V.Ya. Zyryanov

{"title":"Light selective reflection asymmetry in cholesteric layer with planar–conical anchoring","authors":"M.A. Lesnoy , M.N. Krakhalev , W. Lee , V.Ya. Zyryanov","doi":"10.1016/j.optmat.2025.116924","DOIUrl":"10.1016/j.optmat.2025.116924","url":null,"abstract":"<div><div>The orientational structure and spectral properties of a cholesteric layer with planar–conical boundary conditions are studied. Initially, a structure with circular-shaped domains characterized by double twisting of the surface linear defect is formed. Under the influence of an electric field, the domains take the shape of polygons. This system has an asymmetric selective reflection of light: the reflection of right-circularly polarized light close to 100% is observed at a normal incidence of radiation on the sample from the planar boundary conditions, while a selective reflection of light does not occur for radiation incident from the conical anchoring. The light transmission of the sample in the forward direction does not depend on which substrate the radiation falls on. This spectral behaviour is due to the peculiarity of the formation of the domain structure in the cholesteric layer, in which the circular domains are initially located only near the substrate with a conical anchoring. A practically uniform planar cholesteric structure is formed near another substrate with planar boundary conditions. The selective reflection asymmetry is reduced by an applied voltage in the range of 0 to 12 V. The cholesteric transforms into a scattering state at an applied voltage of 12 V <span><math><mrow><mo><</mo><mi>U</mi><mo><</mo><mn>72</mn></mrow></math></span> V and becomes a transparent at <span><math><mrow><mi>U</mi><mo>></mo><mn>72</mn></mrow></math></span> V. Switching off the electric field, under the influence of which the cholesteric is in a transparent state, leads to the restoration of the asymmetry of selective light reflection.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116924"},"PeriodicalIF":3.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685188","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

Enhancement of up-conversion luminescence intensity of Er-doped CaMoO4 by K2CO3 addition

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-19 DOI: 10.1016/j.optmat.2025.116959

Tomoki Koikawa , Tomoyuki Yamamoto

引用次数: 0

Spectroscopic and vibrational properties of CsI single crystals doped with divalent samarium 掺杂二价钐的 CsI 单晶的光谱和振动特性

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-18 DOI: 10.1016/j.optmat.2025.116958

D.O. Sofich, A.I. Bogdanov, R.Yu Shendrik

引用次数: 0

MnCr2O4: A suitable material with significant optical response for optoelectronic devices MnCr2O4：一种适用于光电设备且具有显著光学响应的材料

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116951

Ala Ben Abderrazak Hajji , Mouna Wali , Radhia Dhahri , Souha Kammoun , Essebti Dhahri , Jose F.M.L. Mariano , Mosbah Jemmali

{"title":"MnCr2O4: A suitable material with significant optical response for optoelectronic devices","authors":"Ala Ben Abderrazak Hajji , Mouna Wali , Radhia Dhahri , Souha Kammoun , Essebti Dhahri , Jose F.M.L. Mariano , Mosbah Jemmali","doi":"10.1016/j.optmat.2025.116951","DOIUrl":"10.1016/j.optmat.2025.116951","url":null,"abstract":"<div><div>In current high-tech electronics, a power-efficient and compact light source has an essential role to play in the development of non-destructive and non-invasive detection applications as well as for advancing of technological innovation. In this order, an innovative investigation has been taken into consideration in this paper to characterize the optoelectronic behaviour of MnCr<sub>2</sub>O<sub>4</sub> spinel chromite compound based on both experimental and theoretical approaches. The room temperature X-ray diffraction gives rise to a single-phase spinel compound which crystallises in the cubic system with the space group (Fd <span><math><mrow><mover><mrow><mn>3</mn><mspace></mspace></mrow><mo>‾</mo></mover></mrow></math></span> m). Thanks to the UV–Visible/NIR absorbance and reflectance measurement, the direct semiconducting behaviour (E<sub>dg</sub> = 2.41 eV) of chromite sample have been verified. The spectral behaviour of absorbance proves that the sample under study exhibit a broad absorption in the visible range. The high localized state density is confirmed by the significant high Urbach energy value that was observed (E<sub>u</sub> = 2.86 eV). Various optical parameter such as refractive index, extinction coefficient, dielectric real and imaginary optical permittivity have been analysed to more investigate experimentally the optoelectronic behaviour of the studied sample. Owing to the Wemple Di-Domenico model additional dispersive parameters have been identified. A comprehensive analysis of the crystal field theory based on the theoretical evaluation of the algebraic Racah tensor was taken into consideration on trivalent chromium Cr<sup>3+</sup> (3 d<sup>3</sup>) according to the O<sub>h</sub> symmetry site.The demonstrated results are undoubtedly a road to achieving high-power conversion efficiency making our material promising for multitude optoelectronic application.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116951"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685304","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

Exploring linear and nonlinear optical properties in Yb3+ and Tm3+ doped PbO–GeO2–SiO2 glasses

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116921

I. Fuks-Janczarek , R. Miedzinski , Luciana R.P. Kassab

引用次数: 0

High performance self-powered and broadband photodetector based on 1T/2H MoS2 Schottky homojunction

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116955

Daxiu Tang , Xinru Zheng , Yongwei Lu , Xiaoning Guan , Ying Xie , Guoxiang Wang , Chenjie Gu , Pengfei Lu , Xiang Shen

{"title":"High performance self-powered and broadband photodetector based on 1T/2H MoS2 Schottky homojunction","authors":"Daxiu Tang , Xinru Zheng , Yongwei Lu , Xiaoning Guan , Ying Xie , Guoxiang Wang , Chenjie Gu , Pengfei Lu , Xiang Shen","doi":"10.1016/j.optmat.2025.116955","DOIUrl":"10.1016/j.optmat.2025.116955","url":null,"abstract":"<div><div>All-2D van der Waals (vdW) Schottky heterojunctions provide a new platform for constructing the self-powered photo detector. However, the sophisticated process flow and unintentional introduction of structural defects can severely degrade the device's performance. In this work, a novel Schottky homojunction based on self-assembled 1T/2H MoS<sub>2</sub> was reported. Experimental results evidenced that the photo detector exhibited self-powered characteristics. The photovoltaic effects could be observed across a broad spectrum ranging from 380 to 900 nm. Moreover, responsivities (R) of 24.5 mA/W, 29.5 mA/W, and 89 mA/W, and detectivities (D∗) of 1.37 × 10<sup>11</sup> Jones, 1.65 × 10<sup>11</sup> Jones, and 4.98 × 10<sup>11</sup> Jones, under UV (380 nm), visible light (550 nm), and near-infrared (900 nm) light, could be achieved, respectively. And excellent switching response times of 6.2 m s (raise time) and 5 m s (fall time) were also recorded. These results evidence that the Schottky homojunction can be an attractive approach for developing high performance optoelectronic detectors.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"163 ","pages":"Article 116955"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706224","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

Ray scattering in fiber-reinforced transparent wood composites – wood microstructural effects and virtual camera simulation

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116953

Bin Chen , Sergei Popov , Lars A. Berglund

引用次数: 0

Encapsulation of molecular chromophores in phosphate glass towards improved stability against photodegradation

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116952

Emmanouil Nikoloudakis , Ioannis Konidakis , Harris Goniotakis , Eleni Agapaki , Klytaimnistra Katsara , George Kenanakis , Athanassios G. Coutsolelos , Emmanuel Stratakis

引用次数: 0

Nonlinear optical properties and stability of Ag/Pt bimetallic nanoparticles in α−Al2O3

IF 3.8 3区材料科学

Optical Materials Pub Date : 2025-03-17 DOI: 10.1016/j.optmat.2025.116920

Oswaldo Sánchez-Dena , Juan-Pablo Cordero-Santiago , Jorge Alejandro Reyes-Esqueda , Alejandro Crespo-Sosa

{"title":"Nonlinear optical properties and stability of Ag/Pt bimetallic nanoparticles in α−Al2O3","authors":"Oswaldo Sánchez-Dena , Juan-Pablo Cordero-Santiago , Jorge Alejandro Reyes-Esqueda , Alejandro Crespo-Sosa","doi":"10.1016/j.optmat.2025.116920","DOIUrl":"10.1016/j.optmat.2025.116920","url":null,"abstract":"<div><div>Metallic nanoparticles are well known to have interesting optical properties. However, a good understanding of those properties still needs to be added in order to be able to control them entirely for future optoelectronic applications. Metallic nanoparticles are still more promising but must be understood because further parameters play essential roles in their formation and transformations. In this paper, we present the results of measurements of the nonlinear optical absorption and refractive index of an oversaturated solid solution of Ag and Pt in <span><math><mrow><mi>α</mi><mo>−</mo><mi>A</mi><msub><mrow><mi>l</mi></mrow><mrow><mn>2</mn></mrow></msub><msub><mrow><mi>O</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></math></span>, as well as of <span><math><mrow><mi>A</mi><msub><mrow><mi>g</mi></mrow><mrow><mn>15</mn></mrow></msub><mi>P</mi><msub><mrow><mi>t</mi></mrow><mrow><mn>17</mn></mrow></msub></mrow></math></span> alloyed nanoparticles and <span><math><mrow><mi>P</mi><mi>t</mi><mo>−</mo><mi>A</mi><mi>g</mi></mrow></math></span> core–shell nanoparticles. Our results indicate that at high irradiance levels, the two former configurations transform into the latter one during the measurements.</div></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":"162 ","pages":"Article 116920"},"PeriodicalIF":3.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0