Journal of Luminescence最新文献

{"title":"High-resolution X-ray imaging based on one-dimensional copper-silver-based metal halide scintillators","authors":"Chao Wang ,&nbsp;Jie Feng ,&nbsp;Dongting Wang ,&nbsp;Junlin Wang","doi":"10.1016/j.jlumin.2025.121213","DOIUrl":"10.1016/j.jlumin.2025.121213","url":null,"abstract":"<div><div>In this work, Cs₆Cu₃AgBr₁₀ perovskite was synthesized by hot-injection method. Through a series of structural and morphological characterization techniques, it was shown that the synthesized Cs₆Cu₃AgBr₁₀ perovskite has high purity and good crystal structure. Theoretical calculation shows that Cs₆Cu₃AgBr₁₀ perovskite material has a direct band gap structure, which is advantageous to the separation and transmission of photogenerated carriers, and thus improve the photoelectric conversion efficiency of the material. In addition, the flexible film made based on vacuum filtration has good flexibility, uniformity, and a smooth and dense particulate layer. Imaging systems based on this membrane can achieve a high resolution of more than 19.35 lp/mm, which is one of the highest values reported in the literature. These studies show great potential for practical X-ray imaging applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121213"},"PeriodicalIF":3.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Substitution induced solvatochromism behaviour of blue emissive N-aryl pyrazoline derivatives and DFT studies","authors":"Praveena Puthige ,&nbsp;Sarojini B. Kunhanna ,&nbsp;Vishwanath Turukarabettu ,&nbsp;Vinutha V. Salian","doi":"10.1016/j.jlumin.2025.121200","DOIUrl":"10.1016/j.jlumin.2025.121200","url":null,"abstract":"<div><div>In the present investigation, a series of 5-[4-(benzyloxy)phenyl]-3-(thiophen-2-yl)-4,5-dihydro-1<em>H</em>-pyrazole derivatives (<strong>A-E</strong>) were successfully synthesized <em>via</em> the cyclization of (2<em>E</em>)-3-[4-(benzyloxy)phenyl]-1-(thiophen-2-yl)prop-2-en-1-one (<strong>1</strong>) with differently substituted phenyl hydrazine respectively. The substituents on the para position of phenyl ring were methyl (-CH₃), bromine (-Br) cyano (-CN) and nitro (-NO₂) groups, leading to the formation of distinct pyrazoline derivatives. This study highlights the influence of different substituents as well as solvents on the potential physicochemical properties of these synthesized pyrazoline derivatives. To investigate the absorption and emission behaviours of the pyrazoline derivatives in various polar and nonpolar solvents; the solvent-solute interactions were analyzed using the solvent polarity parameter approach and Lipperte-Mataga equation. In polar solvents the compounds <strong>A</strong>-<strong>D</strong> exhibited higher Stokes shifts than nonpolar solvents. So the change in excited state intermolecular interactions such as H-bonding brought changes in dipole moments. These derivatives were evaluated for their fluorescence quantum yield (QY) which exhibited fluorescence emission in blue region, as confirmed by CIE diagram. The QY was also effected by polarity of the solvents as compounds <strong>A</strong>-<strong>D</strong> gave least QY in methanol compared to BuOH. The solid state absorption and emission spectral analysis indicated red shift in the emission spectra than in solvents with highest for compound <strong>E</strong> (-NO₂) which could be accounted for J-aggregation in the solid state. These aggregation patterns changed in solution state. The compound E did not show any emission in the polar solvents due to quenching. Additionally, Density functional theory (DFT) calculations were conducted to evaluate the optimized theoretical molecular geometry and frontier molecular orbital properties of the five synthesized organic molecules indicated their semiconductor behaviour. These results provide an avenue to consider the pyrazoline molecules as excellent luminescent materials.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121200"},"PeriodicalIF":3.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel Er3+ activated Y4Al2O9 nanophosphors with high thermal stability for applications in w-LEDs and latent fingerprints detection","authors":"R. Arunakumar ,&nbsp;B.R. Radha Krushna ,&nbsp;G.R. Mamatha ,&nbsp;S.C. Sharma ,&nbsp;B. Bommalingaiah ,&nbsp;Pusparaj Samantsinghar ,&nbsp;Jaiganesh Inbanathan ,&nbsp;C.T. Meyyammai ,&nbsp;G. Ramakrishna ,&nbsp;K. Manjunatha ,&nbsp;Sheng Yun Wu ,&nbsp;H. Nagabhushana","doi":"10.1016/j.jlumin.2025.121215","DOIUrl":"10.1016/j.jlumin.2025.121215","url":null,"abstract":"<div><div>A series of un-doped and 1–9 mol % Er³⁺ doped Y₄Al₂O₉ nanophosphors (YAO:Er³⁺ NPs) are synthesized through a urea-assisted combustion process. X-ray diffraction (XRD) analysis confirmed the monoclinic structure for both types, while scanning electron microscopy revealed their irregular morphology. The YAO:Er³⁺ NPs exhibited an excitation peak at 380 nm, closely matching the near-ultraviolet (n-UV) chip. When excited by n-UV light, these NPs produced a narrow-band green emission with a dominant peak at 549 nm. The optimal Er³⁺ doping concentration in YAO is identified as 5 mol %. Additionally, YAO:5Er³⁺ NPs demonstrated a color purity (CP) of 87.4 % and a thermal stability of 91.3 % at 423 K (T_0.5&gt;473 K). The temperature-dependent photoluminescence (TDPL) emission spectra are recorded in the range of 323–473 K, and the fluorescence intensity ratio (FIR) technique is employed to evaluate the optical temperature sensing capabilities of YAO:5Er³⁺ NPs. The maximum absolute sensitivity (S_a) and relative sensitivity (Sᵣ) are found to be 38 × 10⁻³ K⁻¹ and 1.33 % K⁻¹. The internal quantum efficiency (<em>I</em>_<em>QE</em>) of the YAO:5Er³⁺ NPs sample is found to be 83.3 %. The fabricated white light-emitting diodes (w-LEDs) demonstrates CIE coordinates of (0.3635, 0.3557), a high color rendering index (CRI) of R_a = 94, and a correlated color temperature (CCT) of 4361 K, achieved by incorporating the optimized YAO:5Er³⁺ green phosphor into w-LED devices. Furthermore, these NPs enhance the visualization of ridge patterns, minutiae points, and pore structures in latent fingerprints (LFPs), improving clarity for high-resolution forensic analysis. This study also explores <em>YOLOv8x</em>, an advanced object detection model, for LFPs analysis. Its state-of-the-art architecture enables fast, precise identification of key features, enhancing forensic investigations and biometric authentication. Experimental results show that <em>YOLOv8x</em> surpasses conventional methods in accuracy and speed, highlighting its superiority in fingerprint analysis. In conclusion, the YAO:Er³⁺ phosphors show great potential for applications in forensic analysis, optical temperature sensing, and w-LEDs.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121215"},"PeriodicalIF":3.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultraviolet afterglow of undoped MgAl2O4 derived via solution combustion","authors":"Yungao Cai ,&nbsp;Yinghong Dong ,&nbsp;Yuan Ming Huang","doi":"10.1016/j.jlumin.2025.121212","DOIUrl":"10.1016/j.jlumin.2025.121212","url":null,"abstract":"<div><div>Combining experiments to density functional calculations, photoluminescence (PL) and afterglow properties of solution-combustion derived MgAl₂O₄ were investigated. Under the 255 nm photoexcitation, the PL spectrum of undoped MgAl₂O₄ exhibits two ultraviolet subbands peaking at 3.41 eV (363.6 nm) and 3.18 eV (389.9 nm), respectively. After the irradiation of a high-pressure mercury lamp is terminated, undoped MgAl₂O₄ exhibits ultraviolet afterglow that lasts for about 20.5 min. The afterglow spectrum of undoped MgAl₂O₄ consists of dual ultraviolet subbands peaking at about 360 and 390 nm, correspondingly. Within the scheme of meta generalized gradient approximation, defect energy levels of oxygen vacancies (F⁰, F⁺, F²⁺), aluminum vacancy and magnesium vacancy are determined numerically via density functional calculations. In terms of the defect energy levels of oxygen and aluminum vacancies, optical transitions arising from these defects are constructed for undoped MgAl₂O₄, both the dual-subband PL and the dual-subband afterglow can be interpreted. The ultraviolet afterglow with dual subbands validates our hypothesis of the oxygen and cation vacancies in host acting as the origins of the afterglow of undoped MgAl₂O₄. Apart from opening a window for exploring the afterglow mechanisms of rare-earth doped MgAl₂O₄, the validity of the hypothesis unlocks the power of harnessing intrinsic defects as luminescence center of afterglow to develop novel afterglow materials.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121212"},"PeriodicalIF":3.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical coherence and hyperfine structure of the F07↔5D0 transition in Eu3+:CaWO4","authors":"Xiantong An ,&nbsp;Weiye Sun ,&nbsp;Zhehao Xu ,&nbsp;Wanting Xiao ,&nbsp;Miaomiao Ren ,&nbsp;Mucheng Guo ,&nbsp;Shuping Liu ,&nbsp;Fudong Wang ,&nbsp;Manjin Zhong","doi":"10.1016/j.jlumin.2025.121209","DOIUrl":"10.1016/j.jlumin.2025.121209","url":null,"abstract":"<div><div>Rare-earth ions doped in crystals with low nuclear-spin densities are highly promising candidates for quantum technology applications. In this study, we investigated the spectroscopic properties of the <span><math><mmultiscripts><mrow><mi>F</mi></mrow><mrow><mn>0</mn></mrow><none></none><mprescripts></mprescripts><none></none><mrow><mn>7</mn></mrow></mmultiscripts><msup><mrow><mo>↔</mo></mrow><mrow><mn>5</mn></mrow></msup><msub><mrow><mi>D</mi></mrow><mrow><mn>0</mn></mrow></msub></math></span> optical and the hyperfine transitions of <span><math><mi>E</mi><msup><mrow><mi>u</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> ions in a CaWO₄ crystal, where the nuclear spin arises solely from the <span><math><mmultiscripts><mrow><mi>W</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>183</mn></mrow></mmultiscripts></math></span> isotope, with a natural abundance of 14%. At a temperature of 3 K, we experimentally identified four distinct crystal field environments for <span><math><mi>E</mi><msup><mrow><mi>u</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> ions in a 0.1 at.% <span><math><mi>E</mi><msup><mrow><mi>u</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> doped CaWO₄ crystal. The optical coherence properties of Eu³⁺ ions in these environments were characterized. Additionally, we resolved the hyperfine structures in the <span><math><mmultiscripts><mrow><mi>F</mi></mrow><mrow><mn>0</mn></mrow><none></none><mprescripts></mprescripts><none></none><mrow><mn>7</mn></mrow></mmultiscripts></math></span> ground state and <span><math><mmultiscripts><mrow><mi>D</mi></mrow><mrow><mn>0</mn></mrow><none></none><mprescripts></mprescripts><none></none><mrow><mn>5</mn></mrow></mmultiscripts></math></span> excited state, and determined the <span><math><mmultiscripts><mrow><mi>F</mi></mrow><mrow><mn>0</mn></mrow><none></none><mprescripts></mprescripts><none></none><mrow><mn>7</mn></mrow></mmultiscripts></math></span> ground state lifetimes using spectral hole burning techniques. These findings highlight the significant potential of <span><math><mi>E</mi><msup><mrow><mi>u</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span>:<span><math><mi>CaW</mi><msub><mrow><mi>O</mi></mrow><mrow><mn>4</mn></mrow></msub></math></span> for optical quantum memory applications.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121209"},"PeriodicalIF":3.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bright and dark pulses of erbium-doped fiber lasers based on Ti2SnC","authors":"Weijie Xu ,&nbsp;Hao Tan ,&nbsp;Shixian Sun ,&nbsp;Yingfei Zhao ,&nbsp;Yu Wei ,&nbsp;Xiaoyu Zhao ,&nbsp;Jiayu Shen ,&nbsp;Yuanxiang Xu ,&nbsp;Jiale Wu ,&nbsp;Cheng Lu ,&nbsp;Nannan Xu ,&nbsp;Wenfei Zhang ,&nbsp;Huanian Zhang","doi":"10.1016/j.jlumin.2025.121214","DOIUrl":"10.1016/j.jlumin.2025.121214","url":null,"abstract":"<div><div>In recent years, MAX phase materials have been widely used in the field of nonlinear optics. In this experiment, a Ti₂SnC saturable absorber (SA) with a modulation depth of 5.4 % and a saturation intensity of 81.28 MW/cm² was prepared. Its nonlinear characteristics in erbium-doped fiber lasers were demonstrated. By varying the pump power, the evolution from bright-dark-dark-bright pulses to bright-dark-bright pulses and finally to dark-bright pulses was realized. By changing the polarization angle of polarization controller (PC), both dark-bright and bright-dark-bright pulse operations were successfully achieved. The fundamental repetition frequency was measured at 5.33 MHz, with a pulse interval of 187 ns. The experimental results indicate that the Ti₂SnC saturable absorber exhibits favorable nonlinear optical properties and holds considerable potential for applications in ultrafast optics.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"282 ","pages":"Article 121214"},"PeriodicalIF":3.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical study on the kinetic control mechanism of ESIPT for the photocyclization of diarylethylethene derivatives","authors":"Dan Zhang ,&nbsp;Yingrui Yin ,&nbsp;Jiashuo Yang ,&nbsp;Mingli Wang ,&nbsp;Yunfan Yang","doi":"10.1016/j.jlumin.2025.121211","DOIUrl":"10.1016/j.jlumin.2025.121211","url":null,"abstract":"<div><div>Multifunctional photochromic diarylethylethene derivatives have attracted much attention from researchers due to their unique physicochemical properties originated from photocyclization. Yu et al. synthesized a terthiazole-based diarylethenes (<strong>ap-P</strong>) featuring intramolecular hydrogen bonds in experiment. They supposed that there was a competitive relationship between photocyclization and excited-state intramolecular proton transfer (ESIPT). To gain deeply insight into the connection between two reactions, the geometry optimization, the calculation of electron spectra, and the construction of minimum energy paths of ESIPT and cyclization were carried out under solvent and gas phases. These studied were based on closed shell and unrestricted open shell density functional theory, as well as other quantum chemistry methods. Moreover, qualitative and quantitative analyses of the electron structure revealed that the competition between two reactions is fundamentally driven by changes in aromaticity and electron delocalization. Furthermore, it was theoretically proved that the regulation of ESIPT is realized by changing environmental parameters, leading to a novel method for precise control of photocyclization reaction. It is expected to provide theoretical guidance and prediction for the flexible application of multifunctional photochromic molecular switches in photoelectric materials, biomedicine and other fields.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121211"},"PeriodicalIF":3.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circularly polarized red luminescence based on new enantiopure menthol-functionalized tris-β-diketonate-Eu3+ binary complexes","authors":"Jiaxiang Liu ,&nbsp;Yanan Guo ,&nbsp;Fan Qu ,&nbsp;Lei Lin ,&nbsp;Sicheng Yao ,&nbsp;Chunmei Yuan ,&nbsp;Zhiming Zhang ,&nbsp;Yuzhen Zhao ,&nbsp;Xingqiang Lü","doi":"10.1016/j.jlumin.2025.121206","DOIUrl":"10.1016/j.jlumin.2025.121206","url":null,"abstract":"<div><div>Aromatic 1,10-phenanthroline (Phen) derivatives have been extensively utilized as N^N-ancillary <em>co</em>-ligands in achiral <em>tris</em>-<em>β</em>-diketonate-Eu³⁺ binary complexes with efficient pure red-light. However, circularly polarized (CP) red-light of chiral <em>tris</em>-<em>β</em>-diketonate-Eu³⁺ binary complexes assembled from chiral Phen-derivatives, has never been reported. Herein, based on the synthesized menthol-substituted (at the 5-position) enantiopure Phen-derivative (<strong><em>D</em>-Phen</strong> or <strong><em>L</em>-Phen</strong>), two new chiral <em>tris</em>-<em>β</em>-diketonate-Eu³⁺ binary complexes [Eu(tta)₃(<em>D</em>-Phen)] (<strong>1</strong>) and [Eu(tta)₃(<em>L</em>-phen)] (<strong>3</strong>) (<strong>Htta</strong> = 2-thenoyltrifluoroacetone) are obtained. The two Eu³⁺ enantiomers can exhibit the bright high-purity red-light (<em>Φ</em>_PL = 65–66 %) in combination with the detectable CPL signal (|<em>g</em>_lum| ≈ 0.01 at ⁵D₀→⁷F₁). This study engenders chiral <em>tris</em>-<em>β</em>-diketonate-Eu³⁺ binary complexes (such as [Eu(O^O)₃(chiral<em>-</em>Phen)] et al.) a new platform forward to efficient chiroptical organo-Eu³⁺ compounds.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121206"},"PeriodicalIF":3.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aluminum-gadolinium mixed oxide matrixes doped with optically active lanthanide ions: Potential candidates for biosensing applications","authors":"João Vitor G. de Faria,&nbsp;Lauany M. Pontes,&nbsp;Bruno B.P. Maia,&nbsp;Patrícia P.A. Magrin,&nbsp;Natália Nascimento Silveira,&nbsp;Raquel A. dos Santos,&nbsp;Lucas A. Rocha,&nbsp;Eduardo J. Nassar","doi":"10.1016/j.jlumin.2025.121210","DOIUrl":"10.1016/j.jlumin.2025.121210","url":null,"abstract":"<div><div>The properties of the gadolinium-aluminum-garnet (GAG) crystalline phase allow it to be applied in the medical and technological areas. GAG doping with Eu³⁺, Yb³⁺, and Er³⁺ ions intensifies its spectroscopic properties and paves the way for its use in photovoltaic cells, cancer treatment, and biosensors. In this study, Gd₃Al₅O₁₂ matrixes doped with lanthanide ions were synthesized by the non-hydrolytic sol–gel route, characterized, and spectroscopically evaluated. For the synthesis, precursor aluminum (AlCl₃) and lanthanide (GdCl₃, EuCl₃, YbCl₃, and ErCl₃) salts were employed at 5:3:1:1:10 or 10:3:1:1:10 Al³⁺/Gd³⁺/Eu³⁺/Er³⁺/Yb³⁺ molar ratio. The resulting lanthanide-doped mixed oxide matrixes consisted of a mixture of GdAlO₃ and Gd₃Al₅O₁₂, and the Al³⁺/Gd³⁺ molar ratio influenced phase formation. The effect of the Er³⁺/Yb³⁺ molar ratio (1:10, 1:5, or 1:1) on the spectroscopic properties of the matrixes was assessed. The excitation and emission spectra displayed the typical bands of Eu³⁺ ions. The bands were broadened, which indicated that Eu³⁺ occupied more than one crystallographic site. The emission spectra presented bands due to Gd³⁺ ions in the ultraviolet region. When energy up-conversion was investigated under 980-nm laser, the bands typical of Er³⁺ ions emerged between 550 and 650 nm. Because the lanthanide-doped mixed oxide matrixes synthesized herein have potential application as biosensors, their cytotoxic effects on mammalian cells were tested.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121210"},"PeriodicalIF":3.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Destructive quantization rectifier and hybrid Autler-Townes splitting in non-Hermitian atomic-like medium","authors":"Usman Javed ,&nbsp;Iqbal Hussain ,&nbsp;Muhammad Usman ,&nbsp;Muhammad Qasim Khan ,&nbsp;Faisal Nadeem ,&nbsp;Huanrong Fan ,&nbsp;Peng Li ,&nbsp;Yanpeng Zhang","doi":"10.1016/j.jlumin.2025.121208","DOIUrl":"10.1016/j.jlumin.2025.121208","url":null,"abstract":"<div><div>We report the destructive quantization rectifier and hybrid Autler Towns splitting in non-Hermitian atomic like medium. The spectral shift of two-directional destructive dressing quantization to one-directional crystal field splitting occurs in fluorescence. The constructive spectral asymmetry of spontaneous four wave-mixing comes from the linear and circular dressing difference. Furthermore, we investigate the three types (dip coexists, peak coexists and multi Autler-Townes splitting) of hybrid Autler-Towne's splitting via constructive quantization. The interplay between destructive shift and hybrid Autler-Towne's splitting has been investigated through temporal Autler-Townes splitting. Based on experimental results, our destructive spectral shift are useful techniques for making spectral rectifier with 72 % frequency shift.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121208"},"PeriodicalIF":3.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}