OPTICS AND LASER TECHNOLOGY
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2025
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IF 5
Lingjun Zhou,Panyi Wang,Tenglong Sun,Yanan Chen,Muzhi Cai,Wenyan Zheng,Feifei Huang,Ying Tian,Liaolin Zhang,Junjie Zhang
Tellurite glasses with the composition 67TeO 2 -3Al 2 O 3 -xZnO-(30-x)Na 2 O (x = 0–20 mol%) were synthesized via melt-quenching. Raman analysis revealed Al/Zn synergistically strengthened the network via Al-O-Te/Zn-O-Te bonds below 15 mol% ZnO, whereas excess ZnO triggered Zn 2+ /Al 3+ site competition, reducing crystallization resistance. The glass with 15 mol% ZnO (TANZ) shows optimal thermal stability ( T g = 311 °C, ΔT = 139 °C) and serves as the host for obtaining mid-infrared emission. The Ho 3+ /Yb 3+ co-doped TANZ glass shows high absorption and emission cross-sections of 7.36 × 10 –21 cm 2 and 5.86 × 10 –21 cm 2 , respectively, along with a long lifetime of 1.33 ms at 2 μm. These results highlight the potential of TANZ glasses as robust gain materials for mid-infrared fiber lasers.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Optical Materials
·
2023
·
IF 0
Yingzhen Wu,Lin Lin,Pan Lu,Wenjun Ma,Zheng Li,Mingze Zhang,Yuanming Yang,Niuniu Ju,Yanan Zhang,Huanjie Liao,Zhuohong Feng,Zhezhe Wang,Zhiqiang Zheng
Up until now, the applications of lanthanide ion-doped lead-free double perovskite Cs2AgInCl6 nanocrystals (NCs) have been rarely reported, especially in fluorescence anticounterfeiting and coding. Here, we successfully incorporated Tb3+/Ho3+ ions into Cs2AgInCl6 NCs by the hot-injection method. Benefiting from the energy transfer process, Tb3+- and Ho3+-codoped Cs2AgInCl6 NCs showed tunable emission color in a green-blue-orange triangle region. Combining our NCs with transparent ink for printing, we put forward the applications of color bar codes and color QR codes (3D codes) as well as information encryption. Compared with traditional codes, color bar codes and 3D codes conquer the shortcomings of low information density, weak information security, and poor aesthetics. Furthermore, through double-mode excitation, we list an encoding table corresponding to 26 letters and 10 numbers. The encoding table embodies the application value of information encryption and coding.
研究领域:
材料科学
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光学
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信息安全
✓ 已验证
DOI
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Hanyu Xu,Mochen Jia,Zhiying Wang,Yanling Wei,Zuoling Fu
The core–shell engineering of lanthanide-doped nanoparticles has captured considerable attention because it can safeguard the luminescence intensity of the core by reducing surface defects. However, the limited surface area of the traditional spherical core–shell structure hinders the further breakthrough of the brightness. Herein, a unique NaYF4:Yb3+/RE3+@NaYF4:Yb3+/RE3+@NaNdF4:Yb3+ (RE3+ = Ho3+ or Er3+) dumbbell-shaped multilayer nanoparticle featuring a high surface area is reported. Its upconversion luminescence intensity is higher than that of the conventional spherical core–shell structure. A thorough investigation is performed on the luminescence and thermometric mechanisms of Ho3+/Er3+ distributed in the core and the first shell. Remarkably, when Ho3+/Er3+ ions are distributed in the first shell, the relative sensitivity of the biological luminescence nanothermometer composed of downshifting near-infrared emissions is increased to 2.543% K–1 (328 K), which considerably exceeds most reported values. The increased value is attributed to the more thermal-sensitive phonon-assisted energy transfer. For potential biological applications, dumbbell-shaped nanoparticles (DSNPs) with hydrophilic modification show excellent thermometric performance and high tissue penetration depth. Overall, the insights provided by this work will broaden the scope of novel DSNPs in the fields of luminescence and nanothermometry.
研究领域:
材料科学
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生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
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2017
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IF 2.124
X.L. Yang,W.C. Wang,Q.Y. Zhang
The influence of BaF 2 on the physical and spectroscopic properties of Cr 3+ /Ho 3+ co-doped germanate glass is investigated systematically by differential scanning calorimeter , excitation and emission spectra , as well as dynamic decay lifetime. The intense and broad absorption band of Cr 3+ provides a selective pump scheme for obtaining an efficient 2.0 μm emission of Ho 3+ , the OH − absorption coefficient, on the other hand, is decreased as low as 1.08 cm −1 , which both highly conducive to obtain an intense 2.0 μm emission of Ho 3+ . In addition, the crystal-field parameter D q / B of Cr 3+ -doped glasses is also calculated to study the influence of BaF 2 on the local environment of activators and sensitizers. Further theoretic calculation shows that the largest absorption and emission cross-sections of Ho 3+ near 2.0 μm are as high as 4.6 and 5.2 (× 10 −21 cm 2 ) in the 10 mol% BaF 2 modified Cr 3+ /Ho 3+ co-doped glass and the maximum energy transfer efficiency from Cr 3+ to Ho 3+ is about 42.5%. All results suggest that this BaF 2 modified Cr 3+ /Ho 3+ co-doped glass is very suitable for a high-efficient 2.0 μm fiber lasers with flexible pump sources.
✓ 已验证
DOI
高影响因子
APPLIED PHYSICS B-LASERS AND OPTICS
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2024
·Vol. 130
·期 3
·38
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IF 2
Ran Qiu-Yue,Lian Yu-Long,Tang Yong,Hao Jian-Hong,Bai Yun-Feng
FIR temperature measurement based on thermally coupled levels of rare earth ions has been widely studied, but its sensitivity is limited by the thermal coupling levels’ spacing. In this letter, a transition from non-thermally coupled levels of Ho 3+ to thermally coupled levels is reported for the first time. It can effectively improve the sensitivity of temperature measurement based on thermal coupling levels. The Ho 3+ /Yb 3+ co-doped Y 2 O 3 millimeter crystals have been prepared by laser annealing. The fluorescence properties of laser-annealed Ho 3+ /Yb 3+ co-doped Y 2 O 3 millimeter crystals were investigated as a function of temperature. It was found that the I 667nm / I 549nm show non-thermal coupling below 453K, but changes to thermal coupling above 453K. The maximum relative sensitivity of I 667nm / I 549nm in thermal coupling is greater than the relative sensitivity of any known thermal coupling energy levels of Ho 3+ . It provides a new way to improve the sensitivity of thermally coupled FIR temperature measurement.
研究领域:
材料科学
·
光学传感
·
稀土掺杂
·
激光加工
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温度测量
✓ 已验证
DOI
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2015
·
IF 1.766
Yuebo Hu,Renjun Dou,Jianbei Qiu
Upon excitation with a 980 nm laser diode (LD), the upconversion luminescence (UCL) properties of Tb 3 + /Ho 3 + /Yb 3 + tri-doped oxyfluoride silicate glasses were investigated. Five distinct emissions peaked at 489, 543, 584, 623 and 662 nm are simultaneously observed and are assigned to the electronic transitions of Tb 3 + : 5 D 4 → 7 F J (J = 6, 5, 4 and 3) and Ho 3 + : 5 F 5 → 5 I 8 , respectively. The effects of Tb 3 + and Yb 3 + concentrations on the emissions were studied. The log–log plots of the UCL intensity versus laser power show abnormal relations: the slopes are larger than those in previous reports, which could be attributed to the effect of intrinsic optical bistability (IOB) of Yb 3 + ions. In addition, the UC mechanisms were discussed in this work.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
INFRARED PHYSICS & TECHNOLOGY
·
2021
·
IF 2.638
Yuxin Pan,Hui Lin,Ruijin Hong,Dawei Zhang,Haojie Sun
A series of Yb 3+ , Ho 3+ , Ce 3+ :YAG ceramics have been sintered at 1780 °C by high temperature solid state reaction under oxygen atmosphere. The absorption spectra , fluorescence spectra and fluorescence decay curve were discussed. The Judd-Ofelt (J-O) theory was applied to obtain the values of Ω 2 = 13.95 × 10 −20 cm 2 , Ω 4 = 3.94 × 10 −20 cm 2 and Ω 6 = 0.87 × 10 −20 cm 2 , respectively. After doping the Ce 3+ ions, the σ em of Yb 3+ , Ho 3+ , Ce 3+ :YAG ceramic at 2094 nm increased from 5.67 × 10 −20 cm 2 to 7.26 × 10 −20 cm 2 . These results demonstrate that Yb 3+ , Ho 3+ , Ce 3+ :YAG ceramic could be promising for 2 μm region.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Laser & Photonics Reviews
·
2025
·
IF 10
Xiaolong Dong,Xin Zhao,Yuhang Zhang,Maosen Hu,Lifan Shen,Edwin Yue Bun Pun,Hai Lin
Driven by the escalating demand for cutting-edge materials in interactive encryption and customized display, the optimization of excitonic coupling mechanisms in perovskite-based luminescent systems has emerged as a pivotal focus in advanced materials research. Inspired by synergistic doping (SD), a photoswitchable energy transfer channel is realized utilizing the UV-responsive Cs 2 NaInCl 6 : Sb 3+ -Ho 3+ (CNIC: Sb-Ho) phosphor. Benefiting from the self-trapped exciton of Sb 3+ , the visible blue luminescence of Ho 3+ achieves excitation reconstruction through SD, with a sensitization coefficient from Sb 3+ to Ho 3+ in CNIC reaching two orders of magnitude. Notably, CNIC: Sb-Ho quantum dot is embedded into polyacrylonitrile (PAN) and polymethyl methacrylate (PMMA) fibers, respectively, and distinct color coordinate channels are created by altering the doping concentration and fiber matrix, thereby enabling the personalization and the customization of the desired colors with enhanced precision. Furthermore, excellent read-in performance under UV irradiation is achieved by screen-printing CNIC: Sb-Ho microcrystal on nanofibers and combining it with ACSII code, which endows nanofibers with UV-induced controllable shape programming behavior for interactive multidimensional information encryption. This work establishes an enhanced visual interaction framework through effectively integrating perovskite fluorescence tunability and nanofiber adaptive structures, thus opening new possibilities for the smart application of next-generation optical encryption technology.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Yuhao Li,Junhao Xu,Tengbo Hu,Guangli Shi,Yao Peng,Feng Qiao,Lietao Zhang,Chuanyu Zhao,Ye Kuang,Longhai Shen
Rare earth (RE) dopants can modulate the bandgap of oxides of indium and gallium and provide extra upconversion luminescence (UCL) abilities. However, relevant UCL fine-tuning strategies and energy mechanisms have been less studied. In this research, InGaO, Ho3+ monodoped and Yb3+/Ho3+ codoped In2O3, and Ho3+ monodoped Yb3Ga5O12 nanoparticles (NPs) were synthesized by a solvothermal method. The effects of Yb3+ and Ho3+ dopants on the crystal structures, UCL properties, and optical bandgaps of the oxides were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UCL spectroscopy, and measurements of decay times, pump power dependence, and transmittance spectra. The crystal structures of oxide products of indium and gallium were significantly modified with RE dopants. In2O3 and Yb3Ga5O12 were selected as the host materials. For Yb3+/Ho3+ codoped In2O3 NPs, there existed energy transfers from the defect states of In2O3 to Ho3+ and from Yb3+ to Ho3+. With a fixed Ho3+ concentration, In2O3:0%Yb3+,2%Ho3+ NPs showed the optimal UCL properties mainly due to In2O3–Ho3+ energy transfer and Ho3+–Yb3+ energy-back-transfer, while with a fixed Yb3+ concentration, In2O3:5%Yb3+,3%Ho3+ NPs with a slight Yb2O3 impurity and Yb3Ga5O12:2%Ho3+ NPs did mainly due to Ho3+–Ho3+ cross-relaxation. Besides, the optical bandgaps of In2O3 and Yb3Ga5O12 were noticeably broadened with RE dopants. These findings can offer feasible directions for the synthesis and UCL fine-tuning of RE-doped oxides of indium and gallium and improve their multifunction application prospects in the fields of semiconductor and UCL nanomaterials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2023
·
IF 3.5
Yinghui Shi,Minghui Zhang,Kun Chen,Weijie Deng,Xuechao Liu,Huirong Su,Jiansheng Xie,Xiangyuan Wang,Jiabao Wan,Haibo Wang
A modified melt quenching technique was used to prepare new Tm 3+ /Ho 3+ co-doped TeO 2 -Ta 2 O 5 -La 2 O 3 (TTL) glass with high emission cross section . By standing the traditional tube furnace sideways, the melt quenching method is optimized to produce tellurate glass efficiently and simply. The performance of the glass system is studied in detail, and the possibility of this glass system as a 2.0 μm fiber laser material is obtained. The glass system was obtained by test analysis to have large refractive index (n d >2.01) and density (>5.28 g/cm 3 ), excellent mechanical properties (>4.5Gpa). TTL5 glass was obtained with excellent glass transition temperature (Tg>439 °C) and good resistance to crystallization based on thermodynamic analysis(ΔT>170 °C). In addition, the bonding structure was studied and maximum phonon energy of TTL5 glasses was determined to be ∼669 cm −1 by Raman. The SEM micrographs show well the surface micromorphology of TTL3 and TTL5, and EDAX verifies that the results of elemental analysis of this system of glasses are reliable. Fluorescence spectroscopy demonstrated a TTL5 series of samples with 2.0 μm strong emission. Finally, the absorption emission cross-sections of Ho 3+ were calculated to be as high as7.92×10 −21 (at 1963 nm) and 12.301×10 −21 (at 2061 nm), respectively, with a maximum gain factor of 2.75 cm −1 . The results show that this new TTL series glass has high thermal stability, low phonon energy, and efficient 2.0 µm fluorescence, extending the tellurite glass system and being a good candidate for obtaining efficient 2.0 µm emission.
✓ 已验证
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2023
·
IF 3.6
Yingzhen Wu,Lin Lin,Zheng Li,Yanan Zhang,Zhuohong Feng,Zhezhe Wang,Zhiqiang Zheng
Up to now, the research field of application of lanthanide ions doped lead-free double perovskite Cs 2 AgInCl 6 nanocrystals (NCs) was relatively limited, even less in temperature sensing. Here, Tb 3+ /Ho 3+ /Bi 3+ ions were successfully doped into Cs 2 AgInCl 6 NCs by hot-injection. The temperature sensing performance of co-doped NCs by using the fluorescence intensity ratio (FIR) was studied through the temperature-dependent emission spectra . By analyzing the influence of ions' doping concentration on temperature sensing performance, the optimal doping concentration of co-doped Cs 2 AgInCl 6 NCs was determined to be 7 % Tb 3+ , 20 % Ho 3+ and 1 % Bi 3+ . The highest absolute and relative sensitivities reach 1.48 K −1 and 2.48 %/K, respectively. We provide a new doping scheme of lead-free double perovskite NCs which have good temperature sensing performance. This co-doped NCs have great potential application value in non-contact temperature sensing in nanoscale .
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2024
·
IF 3.3
Xiaoyu Wu,Yang Yu,Kejie Li,Mingqin Huang,Zuoling Fu
The near-infrared-II (NIR-II) fluorescence thermometer based on rare earth-doped double perovskite is rarely. Herein, Er 3+ -Ho 3+ and Yb 3+ co-doped lead-free double perovskite La 2 MgTiO 6 (LMTO) phosphors were synthesized by a conventional high temperature solid phase method. The phase purity and morphology of the samples were analyzed using XRD and FE-SEM. The NIR-II luminescence properties of LMTO: Er 3+ -Ho 3+ -Yb 3+ phosphors were systematically investigated under laser irradiation at 980 nm. A NIR-II fluorescence thermometer was also designed based on non-thermal coupled energy levels originated from the 4 I 13/2 energy level of Er 3+ and the 5 I 6 energy level of Ho 3+ . The maximum value of relative sensitivity (S r ) was 0.54 % at 513 K. Compared to visible thermometers (LMTO: Er 3+ -Yb 3+ and LMTO: Ho 3+ -Yb 3+ ), the NIR-II thermometers offer better temperature measurement capability and penetration depth. All the experimental results show that the NIR-II thermometer with a wider range and higher sensitivity has been realized, which puts forward a new idea for the design and optimization of NIR-II thermometers.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）