Optical Materials: X最新文献

Elaboration by additive manufacturing of microstructured optical fibers for infrared sensing application 用增材制造技术制备红外传感用微结构光纤

Optical Materials: X Pub Date : 2026-02-01 Epub Date: 2026-03-12 DOI: 10.1016/j.omx.2026.100439

Robin Chenevière , Simon Coudray , Catherine Boussard-Pledel , Francois Cheviré , Ronan Lebullenger , Antoine Gautier , Thierry Jouan , Bruno Bureau , Frederic Charpentier , Yann Guimond , Leo Szymczyk , Hugues Tariel , Khalid El-Kalti , Johann Troles

{"title":"Elaboration by additive manufacturing of microstructured optical fibers for infrared sensing application","authors":"Robin Chenevière , Simon Coudray , Catherine Boussard-Pledel , Francois Cheviré , Ronan Lebullenger , Antoine Gautier , Thierry Jouan , Bruno Bureau , Frederic Charpentier , Yann Guimond , Leo Szymczyk , Hugues Tariel , Khalid El-Kalti , Johann Troles","doi":"10.1016/j.omx.2026.100439","DOIUrl":"10.1016/j.omx.2026.100439","url":null,"abstract":"<div><div>Additive manufacturing offers new opportunities for designing complex glass preforms that cannot be achieved by conventional methods. In this work, we demonstrate the fabrication of microstructured chalcogenide-glass fibers for mid-infrared sensing using a filamentation 3D-printing process. Two fiber architectures were produced: a conventional exposed-core fiber (ECF) and a novel Y-shaped exposed-core fiber (Y-ECF), made possible only through additive manufacturing of the preforms. Both fibers exhibit attenuation below 4 dB/m in the 3–10 μm wavelength range with a minimum attenuation of 0.5 dB/m at 5.5 μm. Fiber evanescent wave spectroscopy (FEWS) measurements performed on ethanol reveal that the printed fibers outperform a standard single-index TAS fiber. The Y-ECF shows the highest sensitivity due to its fully open geometry and thin Y-core arms, which enhance the evanescent field and interaction with the surrounding medium. These results highlight the potential of 3D printing for rapid prototyping of advanced microstructured infrared fibers and open new perspectives for chemical and biological sensing in the mid-infrared.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"30 ","pages":"Article 100439"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147551406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tandem solar cell with dual capability of indoor–outdoor application — A numerical calculation study 户外两用串联太阳能电池的数值计算研究

Optical Materials: X Pub Date : 2026-02-01 Epub Date: 2026-03-19 DOI: 10.1016/j.omx.2026.100438

Abolfazl Mahmoodpoor , Daniel Sapori , Ruslan Azizov , Aleksandra Furasova , Sergey Makarov

{"title":"Tandem solar cell with dual capability of indoor–outdoor application — A numerical calculation study","authors":"Abolfazl Mahmoodpoor , Daniel Sapori , Ruslan Azizov , Aleksandra Furasova , Sergey Makarov","doi":"10.1016/j.omx.2026.100438","DOIUrl":"10.1016/j.omx.2026.100438","url":null,"abstract":"<div><div>This study explores the conceptual development of an innovative tandem solar cell aimed at maximizing efficiency in both indoor and outdoor settings. Traditional tandem solar cells predominantly utilize a 2-terminal in-series architecture, which presents significant challenges related to current matching particularly for applications that span both environments. We investigate the potential of a parallel-series connection configuration for 2-terminal tandem cells for optimal usage both in outdoor and indoor conditions. Our findings demonstrate that this approach is not only robust against current mismatch but also allows for the optimization of absorber band gap energies. We present case studies comparing the performance of state-of-the-art solar cells across various technologies, highlighting the advantages of both in-series and in-parallel connections. Additionally, we conduct calculations to assess the current mismatch in subcells, underscoring the benefits of the parallel-series configuration for dual outdoor-indoor applications. We show that while the power conversion efficiency (PCE) of in-series tandem reduces in indoor application, parallel-series tandem demonstrates increasing in PCE by increasing of in-door light intensity. Additionally, by employing cutting-edge solar cells, we calculate a PCE for the in-series tandem configuration using a Perovskite/copper indium gallium selenide (CIGS) combination, and for the parallel-series tandem configuration with a Perovskite/c-Silicon pairing. The results demonstrate that the parallel-series tandem achieves a PCE comparable to that of the in-series tandem, while offering greater tolerance to current mismatches.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"30 ","pages":"Article 100438"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147551403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of composition and preparation method on laser performance of holmium-doped silica fibers 研究了掺钬硅光纤的组成及制备方法对激光性能的影响

Optical Materials: X Pub Date : 2026-02-01 Epub Date: 2026-03-25 DOI: 10.1016/j.omx.2026.100440

M. Kamrádek , R. Sajzew , J. Aubrecht , F. Lindner , P. Vařák , O. Podrazký , I. Bartoň , J. Bierlich , J. Dellith , I. Kašík , K. Wondraczek , P. Peterka , P. Honzátko

{"title":"The role of composition and preparation method on laser performance of holmium-doped silica fibers","authors":"M. Kamrádek , R. Sajzew , J. Aubrecht , F. Lindner , P. Vařák , O. Podrazký , I. Bartoň , J. Bierlich , J. Dellith , I. Kašík , K. Wondraczek , P. Peterka , P. Honzátko","doi":"10.1016/j.omx.2026.100440","DOIUrl":"10.1016/j.omx.2026.100440","url":null,"abstract":"<div><div>The composition of holmium-doped fibers has a fundamental influence on their fluorescence and laser properties. The same can apply for the preparation method, since it may affect the glass matrix in the close vicinity of active ions. We present fibers with different dopant levels, namely Al2O3 and Ho3+, prepared through several methods to find their relations to fiber characteristics. We investigated fluorescence lifetime, laser threshold and laser slope efficiency as a function of Al/Ho molar ratio and Al2O3 content. It was proved laser slope efficiency is affected primarily by Al/Ho ratio; for high-efficiency fibers with low laser threshold the Al/Ho needs to be greater than 50. Fluorescence lifetime was found to depend on both Al/Ho ratio and on total Al2O3 content. It was increasing with Al/Ho ratio as well as with total Al2O3 concentration. The best-performing fibers showed slope efficiency above 70%, laser threshold below 200 mW and fluorescence lifetime longer than 1200 μs.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"30 ","pages":"Article 100440"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147551404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical features of nanoplatelets modified with chiral ligands 手性配体修饰纳米血小板的光学特性

Optical Materials: X Pub Date : 2026-02-01 Epub Date: 2026-03-23 DOI: 10.1016/j.omx.2026.100441

A.M. Smirnov , D.A. Kurtina , L.V. Kotova , T. Zedomi , A. Hasan , S.R. Saitov , V.N. Mantsevich , A.I. Musorin , A.A. Fedyanin , R.B. Vasiliev

{"title":"Optical features of nanoplatelets modified with chiral ligands","authors":"A.M. Smirnov , D.A. Kurtina , L.V. Kotova , T. Zedomi , A. Hasan , S.R. Saitov , V.N. Mantsevich , A.I. Musorin , A.A. Fedyanin , R.B. Vasiliev","doi":"10.1016/j.omx.2026.100441","DOIUrl":"10.1016/j.omx.2026.100441","url":null,"abstract":"<div><div>Chiral semiconductor nanostructures and nanoparticles are promising materials for applications in biological sensing, enantioselective separation, photonics, and spin-polarized devices. Here we performed a detailed analysis of optical properties of chiral CdSe nanoplatelets with thickness of 2 and 3 monolayers (ML) with N-acetyl-L-cysteine ligands. We studied the absorption spectra peculiarities, analyzed time-resolved photoluminescence and investigated circular and linear polarization of light passed the samples with different chirality. It was found that non-chiral nanoplatelets reveal the transformation of linear polarization into circular one due to the precence of birefringence. It was demonstrated that only one of the exciton resonances dominates in the polarization properties of chiral nanoplatelets. For chiral 2-ML-thick CdSe nanoplatelets the most pronounced chiral optical response corresponds to the heavy hole excitons and for 3-ML-thick CdSe nanoplatelets light hole excitons play the most important role. We performed complex analysis of the optical features of nanoplatelets modified by chiral ligands and combined for the first time to the best of our knowledge the polarization analysis with time resolved measurements. Moreover, we demonstrated an important role of birefringence in the semiconductor in addition to the presence of chiral ligands, which was not carefully separated before.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"30 ","pages":"Article 100441"},"PeriodicalIF":0.0,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147551405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Luminescence investigations of Ce3+-doped fluorozirconate and fluorohafnate glass phosphors 掺Ce3+氟锆酸盐和氟铪酸盐玻璃荧光粉的发光研究

Optical Materials: X Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1016/j.omx.2025.100426

Sergey Kh. Batygov , Liudmila V. Moiseeva , Valeria V. Vinokurova , Leonid A. Vaimugin , Maria N. Brekhovskikh

引用次数: 0

Pressure-stable optical anisotropy and band gap tunability in NaBi(S,Se,Te)2 and mixed-chalcogen NaBiXY compounds NaBi(S,Se,Te)2和混合含硫NaBiXY化合物的压稳光学各向异性和带隙可调性

Optical Materials: X Pub Date : 2026-01-01 Epub Date: 2025-12-13 DOI: 10.1016/j.omx.2025.100433

Ayad Hatim Karim , Zahra Nourbakhsh , Aminollah Vaez , Daryoosh Vashaee

{"title":"Pressure-stable optical anisotropy and band gap tunability in NaBi(S,Se,Te)2 and mixed-chalcogen NaBiXY compounds","authors":"Ayad Hatim Karim , Zahra Nourbakhsh , Aminollah Vaez , Daryoosh Vashaee","doi":"10.1016/j.omx.2025.100433","DOIUrl":"10.1016/j.omx.2025.100433","url":null,"abstract":"<div><div>We report a first-principles investigation of the structural, electronic, and optical properties of NaBiXY (X, Y<img>S, Se, Te) ternary chalcogenides, with a focus on optical anisotropy and pressure response. Total energy and formation energy calculations reveal that all compounds, except NaBiS2 and NaBiSe2, favor a trigonal crystal structure over the cubic NaCl-type phase. All systems exhibit indirect band gaps, with values tunable through chalcogen substitution. NaBiTe2 presents the smallest gap, while NaBiSeS has the largest. Band gap variation under hydrostatic pressure is nearly linear across the series. Optical property analysis shows pronounced dielectric anisotropy, particularly in the low-energy region below 6 eV, with the in-plane component (<math><mrow><msub><mi>ε</mi><mrow><mi>x</mi><mi>x</mi></mrow></msub></mrow></math>) exceeding the out-of-plane component (<math><mrow><msub><mi>ε</mi><mrow><mi>z</mi><mi>z</mi></mrow></msub></mrow></math>). Substituting Te with Se or S shifts the primary peaks of the dielectric function to higher photon energies with reduced intensity. The optical spectra remain stable under moderate pressure, highlighting environmental robustness. These results identify NaBiXY compounds as promising pressure-resilient and compositionally tunable semiconductors with directional optical behavior, suitable for future photonic and optoelectronic applications</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"29 ","pages":"Article 100433"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Virtual screening of CBP derivatives for OLED applications towards evaluation of substitution effects on electronic and optical properties 有机发光二极管（OLED）中CBP衍生物的虚拟筛选对电子和光学性质取代效应的评价

Optical Materials: X Pub Date : 2026-01-01 Epub Date: 2026-01-09 DOI: 10.1016/j.omx.2025.100424

Syed Muhammad Kazim Abbas Naqvi , Aleesha Ali , Zahid Nazir , Faheem Abbas , Mubashir Nazar , Yanan Zhu , Shuai Chang

{"title":"Virtual screening of CBP derivatives for OLED applications towards evaluation of substitution effects on electronic and optical properties","authors":"Syed Muhammad Kazim Abbas Naqvi , Aleesha Ali , Zahid Nazir , Faheem Abbas , Mubashir Nazar , Yanan Zhu , Shuai Chang","doi":"10.1016/j.omx.2025.100424","DOIUrl":"10.1016/j.omx.2025.100424","url":null,"abstract":"<div><div>The electronic structure, charge transport, and excitonic properties of organic molecules critically govern their performance in organic light-emitting diodes (OLEDs). Here, we report a systematic density functional theory (DFT) study of 55 derivatives of 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP), functionalized by attaching eleven electron-donating and electron-withdrawing substituents at five distinct positions. Fundamental parameters including bandgap, ionization potential, electron affinity, quantum chemical reactivity descriptors, optical absorption, and exciton binding energies (EBEs) were rigorously evaluated. This work demonstrates that substituent identity and attachment position significantly influence molecular optoelectronic characteristics. Notably, benzo[c][1,2,5]thiadiazole substitution at the carbazole site provided an optimal bandgap (2.99 eV), low EBE (0.38 eV), and visible-range absorption (∼476 nm), ideal for emissive-layer applications. TCNQ attached at the biphenyl core exhibited the smallest bandgap (0.856 eV), highest electron affinity (4.86 eV), and maximum softness, highlighting excellent electron-transporting capabilities. Furthermore, 1,4-dicyanobenzene substitution at the biphenyl position combined balanced reactivity with electronic stability, suitable as a phosphorescent OLED host. Corroborated by Density of States profiles, molecular electrostatic potentials, and UV-Vis spectra, this work provides valuable design principles for developing next-generation high-performance OLED materials.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"29 ","pages":"Article 100424"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evidence for Tm2+→Tm3+ energy transfer in Tm-doped BaCl2 for potential use in opto-electronic devices tm掺杂BaCl2中Tm2+→Tm3+能量转移在光电器件中潜在应用的证据

Optical Materials: X Pub Date : 2026-01-01 Epub Date: 2026-01-14 DOI: 10.1016/j.omx.2025.100432

M.P. Plokker , S.W. Bergkamp , H.T. Hintzen

{"title":"Evidence for Tm2+→Tm3+ energy transfer in Tm-doped BaCl2 for potential use in opto-electronic devices","authors":"M.P. Plokker , S.W. Bergkamp , H.T. Hintzen","doi":"10.1016/j.omx.2025.100432","DOIUrl":"10.1016/j.omx.2025.100432","url":null,"abstract":"<div><div>The energy transfer from Tm2+ to Tm3+, which has not yet been reported before, has now been observed for the first time. It was found that orthorhombic BaCl2:Tm2+,Tm3+ with the PbCl2 cotunnite structure shows the luminescence properties to enable Tm2+→Tm3+ energy transfer. Evaluation of the luminescence properties of BaCl2:Tm2+,Tm3+ in detail and other Tm2+/Tm3+-activated phosphors in general makes clear that the conditions for Tm2+→Tm3+ energy transfer are a strong overlap of the Tm2+ spin-allowed 4f125d1→4f13 emission with Tm3+ 3H6→3F3 or 3H6→3H4 (4f12→4f12) excitations or overlap of the Tm2+ spin-forbidden 4f125d1→4f13 emission with Tm3+ 3H6→3H4 (4f12→4f12) excitation, resulting in both cases in interconfigurational transitions, while the Tm2+ spin-allowed 4f125d1→4f13 emission should not overlap with the Tm2+ spin-forbidden 4f13→4f125d1 excitation. In addition, the Tm2+-Tm3+ distance has to be small, preferably for a high Tm2+ concentration to increase the absorption of excitation radiation in combination with a low Tm3+ concentration in order to avoid concentration quenching of the luminescence. Finally, implications of Tm2+→Tm3+ energy transfer for applications such as luminescent solar concentrators are discussed.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"29 ","pages":"Article 100432"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Energy transfer processes leading to strong NIR-to-red upconversion in the Yb-concentrated Sr3Yb0.98Er0.02(PO4)3 eulytite” [Opt. Mater.: X 24 (2024) 100358–100364] “在含yb的Sr3Yb0.98Er0.02(PO4)3乙长石中导致nir -red强上转换的能量传递过程”的更正[Opt. Mater.][x 24 (2024) 100358-100364]

Optical Materials: X Pub Date : 2025-08-01 Epub Date: 2025-06-16 DOI: 10.1016/j.omx.2025.100414

Xiaowu Hu , Fabio Piccinelli , Silvia Ruggieri , Pablo Camarero Linares , Patricia Haro , Marco Bettinelli

引用次数: 0

New type of symmetry inhomogeneity in β-TCP-type phosphors: symmetrical features of mixed oxysalts β- tcp型荧光粉的新型对称不均匀性：混合氧盐的对称特征

Optical Materials: X Pub Date : 2025-07-01 Epub Date: 2025-08-11 DOI: 10.1016/j.omx.2025.100421

I.V. Nikiforov , V.V. Titkov , E.S. Zhukovskaya , M.M. Klimenko , E.A. Pankrushina , А.А. Vasin , D.V. Deyneko

{"title":"New type of symmetry inhomogeneity in β-TCP-type phosphors: symmetrical features of mixed oxysalts","authors":"I.V. Nikiforov , V.V. Titkov , E.S. Zhukovskaya , M.M. Klimenko , E.A. Pankrushina , А.А. Vasin , D.V. Deyneko","doi":"10.1016/j.omx.2025.100421","DOIUrl":"10.1016/j.omx.2025.100421","url":null,"abstract":"<div><div>This study shows the modification of photoluminescent properties (PL) of red-emitting β-Ca3(PO4)2-type (β-TCP) phosphor through anionic sublattice substitution. A new series of Eu3+-activated Ca9La(PO4)7(1–x)(VO4)7x were synthesized using the solid-state method. X-ray powder diffraction study shows that all sample have β-TCP structure, however the differences in symmetry between the samples was found by second harmonic generation method. The unusual centrosymmetric structure appeared at 0.2 ≤ x ≤ 0.5 in Ca9La(PO4)7(1–x)(VO4)7x:Eu3+. Study of the series' photoluminescence properties revealed significant improvement in Eu3+-emission intensity for centrosymmetric samples. The PO4 ↔ VO4 substitution at 0.2 ≤ x ≤ 0.5 resulted in a 1.6-fold enhancement of Eu3+ photoluminescent properties. The emission intensity changes correspond to variations in the anionic part of the structure while maintaining constant activator concentration. The optical band-gap of the synthesized phosphors was estimated at ∼3 eV. Characteristic lifetimes decreased from 1.796 to 0.538 ms with increasing VO4 content. Quantum yields reached 34 % with just 1 mol.% of Eu3+. The crystal structure variation proposed here serves as an effective tool for improving photoluminescence properties of rare-earth ions.</div></div>","PeriodicalId":52192,"journal":{"name":"Optical Materials: X","volume":"27 ","pages":"Article 100421"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0