Dongdan Chen
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View article: Rational design of chemically complex laser glasses via neighboring glassy compounds model
Rational design of chemically complex laser glasses via neighboring glassy compounds model Open
The intricate amorphous structure and elusive local environment of rare-earth (RE) doped laser glasses render existing physical or machine-learning models inadequate for guiding the design of next-generation laser glasses, thereby maintain…
View article: Synergy between Defects and Lattice Distortion Drives Self‐Powered Elastico‐Near‐Infrared Mechanoluminescence in Cr <sup>3+</sup> ‐Doped Spinel Oxides
Synergy between Defects and Lattice Distortion Drives Self‐Powered Elastico‐Near‐Infrared Mechanoluminescence in Cr <sup>3+</sup> ‐Doped Spinel Oxides Open
Elastico‐mechanoluminescence (ML) enables unique force‐to‐light transduction for applications in human‐machine interaction and smart sensing, yet traditional trap‐controlled models fail to explain self‐powered ML phenomena. Here, a Cr 3+ ‐…
View article: Flexible Optical Fiber Stress/Temperature Dual‐Mode Sensing Based on CaZnOS:Nd,Er
Flexible Optical Fiber Stress/Temperature Dual‐Mode Sensing Based on CaZnOS:Nd,Er Open
Mechanoluminescence (ML) and upconversion luminescence (UCL) materials exhibit significant potential in advanced optical sensing applications. However, single‐function luminescent materials often fail to meet the increased complexity and p…
View article: Manipulating polarization dynamics of temporal solitons in a 20-GHz micro fiber Fabry-Pérot laser
Manipulating polarization dynamics of temporal solitons in a 20-GHz micro fiber Fabry-Pérot laser Open
In this work, we report on manipulating the polarization characteristics of temporal solitons in a microfiber Fabry-Pérot (FP) laser with a fundamental repetition rate of 20 GHz at 1.5 μm. By controlling the temperature of the microfiber o…
View article: Dynamic gain driven mode-locking in GHz fiber laser
Dynamic gain driven mode-locking in GHz fiber laser Open
Ultrafast lasers have become powerful tools in various fields, and increasing their fundamental repetition rates to the gigahertz (GHz) level holds great potential for frontier scientific and industrial applications. Among various schemes,…
View article: Near‐Infrared Mechanoluminescence from Cr<sup>3+</sup>‐Doped Spinel Nanoparticles for Potential Oral Diseases Detection
Near‐Infrared Mechanoluminescence from Cr<sup>3+</sup>‐Doped Spinel Nanoparticles for Potential Oral Diseases Detection Open
Mechanoluminescence (ML) phosphors have found various promising utilizations such as in non‐destructive stress sensing, anti‐counterfeiting, and bio stress imaging. However, the reported NIR MLs have predominantly been limited to bulky par…
View article: Recent Advances in Fabrication and Applications of Yttrium Aluminum Garnet-Based Optical Fiber: A Review
Recent Advances in Fabrication and Applications of Yttrium Aluminum Garnet-Based Optical Fiber: A Review Open
Yttrium aluminum garnet (YAG)-based optical fiber is one of the research hotspots in the field of fiber lasers due to its combined advantages of a wide doping range of rare earth ions and the high mechanical strength of YAG material, as we…
View article: Phase-encoding of loosely bound soliton molecules
Phase-encoding of loosely bound soliton molecules Open
Dissipative soliton molecules (DSMs) are of great interest for studying the complexity of nonlinear optical problems as they can map with the matter molecules for making interdisciplinary analogies. In contrast to strongly bound DSMs that …
View article: Self-recoverable NIR mechanoluminescence from Cr3+ doped perovskite type aluminate
Self-recoverable NIR mechanoluminescence from Cr3+ doped perovskite type aluminate Open
Mechanoluminescent (ML) materials, which have the ability to convert mechanical energy to optical energy, have found huge promising applications such as in stress imaging and anti-counterfeiting. However, the main reported ML phosphors are…
View article: Efficient and Broadband Emission in Dy3+-Doped Glass-Ceramic Fibers for Tunable Yellow Fiber Laser
Efficient and Broadband Emission in Dy3+-Doped Glass-Ceramic Fibers for Tunable Yellow Fiber Laser Open
Yellow lasers are of great interest in biology, medicine and display technology. However, nonlinear emission of near-infrared lasers at yellow still presents particularly complex optical alignment to date. Here, to the best of our knowledg…
View article: Integrated multi-mode glass ceramic fiber for high-resolution temperature sensing
Integrated multi-mode glass ceramic fiber for high-resolution temperature sensing Open
Optical temperature sensors, which can accurately detect temperature in biological systems, are crucial to the development of healthcare monitoring. To challenge the state-of-art technology, it is necessary to design single luminescence ce…
View article: Multifunctional Cu-Se Alloy Core Fibers and Micro–Nano Tapers
Multifunctional Cu-Se Alloy Core Fibers and Micro–Nano Tapers Open
Cu-Se alloy core fibers with glass cladding were fabricated by a thermal drawing method of a reactive molten core. The composition, crystallography, and photoelectric/thermoelectric performance of the fiber cores were investigated. The X-r…
View article: High-Performance n-Type Bi2Te3 Thermoelectric Fibers with Oriented Crystal Nanosheets
High-Performance n-Type Bi2Te3 Thermoelectric Fibers with Oriented Crystal Nanosheets Open
High-performance thermoelectric fibers with n-type bismuth telluride (Bi2Te3) core were prepared by thermal drawing. The nanosheet microstructures of the Bi2Te3 core were tailored by the whole annealing and Bridgman annealing processes, re…
View article: Broadband high-gain Tm<sup>3+</sup>/Ho<sup>3+</sup> co-doped germanate glass multimaterial fiber for fiber lasers above 2 µm
Broadband high-gain Tm<sup>3+</sup>/Ho<sup>3+</sup> co-doped germanate glass multimaterial fiber for fiber lasers above 2 µm Open
High-gain Tm 3+ /Ho 3+ co-doped optical fibers are urgently desired for high-repetition-rate mode-locked fiber lasers at >2 µm. Here, Tm 3+ /Ho 3+ co-doped germanate glass with low hydroxyl (OH - ) content was prepared by the conventional …
View article: Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing
Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing Open
N-type bismuth telluride (Bi2Te3) based thermoelectric (TE) fibers were fabricated by thermal drawing and Bridgman annealing, and the influence of Bridgman annealing on the TE properties of n-type Bi2Te3-based TE fibers was studied. The Br…
View article: Enhanced thermoelectric properties of Bi2Te3-based micro-nano fibers via thermal drawing and interfacial engineering
Enhanced thermoelectric properties of Bi2Te3-based micro-nano fibers via thermal drawing and interfacial engineering Open
High-performance thermoelectric (TE) materials with great flexibility and stability are urgently needed to efficiently convert heat energy into electrical power. Recently, intrinsically crystalline, mechanically stable, and flexible inorga…
View article: Nd<sup>3+</sup> doped multi-component phosphate glass multi-material fiber for a 1.05 μm laser
Nd<sup>3+</sup> doped multi-component phosphate glass multi-material fiber for a 1.05 μm laser Open
Nd 3+ doped multi-component phosphate glass was prepared by the conventional melt-quenching method. The absorption spectrum, emission spectrum, and fluorescence lifetime of the prepared glass were measured. Based on the absorption spectrum…
View article: Tailoring microstructure and electrical transportation through tensile stress in Bi2Te3 thermoelectric fibers
Tailoring microstructure and electrical transportation through tensile stress in Bi2Te3 thermoelectric fibers Open
Bismuth telluride (Bi2Te3) has attracted much attention in the field of thermoelectrics since it is one kind of commercial room-temperature thermoelectric material. Herein three kinds of Bi2Te3 thermoelectric fibers with internal tensile s…
View article: Enhanced thermoelectric properties of polycrystalline Bi2Te3 core fibers with preferentially oriented nanosheets
Enhanced thermoelectric properties of polycrystalline Bi2Te3 core fibers with preferentially oriented nanosheets Open
Bi2Te3-based materials have been reported to be one of the best room-temperature thermoelectric materials, and it is a challenge to substantially improve their thermoelectric properties. Here novel Bi2Te3 core fibers with borosilicate glas…
View article: Crystalline selenium core optical fibers with low optical loss
Crystalline selenium core optical fibers with low optical loss Open
Amorphous selenium (a-Se) core fibers with glass cladding have immediately been fabricated using the molten core method. The high aspect ratio of the a-Se core fibers and the presence of the glass cladding surrounding the Se core make it c…
View article: Spectroscopic properties in Er3+-doped germanotellurite glasses and glass ceramics for mid-infrared laser materials
Spectroscopic properties in Er3+-doped germanotellurite glasses and glass ceramics for mid-infrared laser materials Open
Transparent Er 3+ -doped germanotellurite glass ceramics (GCs) with variable Te/Ge ratio were prepared by controllable heat-treated process. X-ray diffraction (XRD) and transmission electron microscope (TEM) confirmed the formation of nano…
View article: Numerical analysis of 2.7 μm lasing in Er3+-doped tellurite fiber lasers
Numerical analysis of 2.7 μm lasing in Er3+-doped tellurite fiber lasers Open
The laser performance of Er 3+ -doped tellurite fiber lasers operating at 2.7 μm due to 4 I 11/2 → 4 I 13/2 transition has been theoretically studied by using rate equations and propagation equations. The effects of pumping configuration a…
View article: Tm^3+ doped lead silicate glass single mode fibers for 20 μm laser applications
Tm^3+ doped lead silicate glass single mode fibers for 20 μm laser applications Open
Tm3+ doped lead silicate glasses with good thermal stability were prepared by the melt-quenching method. Based on the absorption and emission spectra, Judd-Ofelt intensity parameters, absorption and emission cross sections, gain spectra, a…
View article: Optical fiber design with orbital angular momentum light purity higher than 999%
Optical fiber design with orbital angular momentum light purity higher than 999% Open
The purity of the synthesized orbital-angular-momentum (OAM) light in the fiber is inversely proportional to channel crosstalk level in the OAM optical fiber communication system. Here the relationship between the fiber structure and the p…
View article: Reduced radiation damage in a multicomponent phosphate glass by Nb^5+ or Sb^3+ doping
Reduced radiation damage in a multicomponent phosphate glass by Nb^5+ or Sb^3+ doping Open
An experimental investigation on the effects of Niobium and Antimony (Nb and Sb) on the radiation response of the multicomponent phosphate glass used for higher optical gain single mode fiber has been carried out. The samples were irradiat…