TAILIEUCHUNG - Optical properties of Eu3+ ions in boro tellurite glass

The electron-phonon coupling strength (g) has been calculated. The value of Ωλ parameters were calculated from the emission spectra using Judd-Ofelt theory. These parameters were used to predict radiative properties such as transition probabilities (AR), calculated branching ratios (βR) and stimulated emission cross-sections (σλ p ) for 5D0 →7FJ transitions. The results have shown that the 5D0 →7F2 transition of Eu3+ ions in BTe glass is very promising for laser emission and optical amplification. | Communications in Physics, Vol. 26, No. 1 (2016), pp. 25-31 DOI: OPTICAL PROPERTIES OF Eu3+ IONS IN BORO-TELLURITE GLASS NGO VAN TAM Nha Trang Institute of Reseach and Application of Technology, Nha Trang, Vietnam VU PHI TUYEN† Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam PHAN VAN DO Thuy Loi University, 175 Tay Son, Dong Da, Hanoi, Vietnam † E-mail: vptuyen@ Received 21 March 2016 Accepted for publication 11 April 2016 Abstract. Boro-tellurite (BTe) glass doped with concentrations of mol% of Sm3+ ions was prepared by melting method. Their excitation, emission spectra and lifetime have been investigated. Sideband phonon spectrum have recorded three peaks at 865, 1375 and 1763 cm−1 . The electron-phonon coupling strength (g) has been calculated. The value of Ωλ parameters were calculated from the emission spectra using Judd-Ofelt theory. These parameters were used to predict radiative properties such as transition probabilities (AR ), calculated branching ratios (βR ) and stimulated emission cross-sections (σλ p ) for 5 D0 →7 FJ transitions. The results have shown that the 5 D0 →7 F2 transition of Eu3+ ions in BTe glass is very promising for laser emission and optical amplification. Keywords: Boro-tellurite glass, Judd-Ofelt theory. Classification numbers: , . I. INTRODUTION The optical properties of trivalent rare-earth (RE3+ ) ions doped glasses have attracted the attention of scientists due to their wide applications in many optical devices like lasers, light converters, sensors, high-density memories and optical amplifiers [1–4]. The borate glasses offer excellent heat stability and lower melting temperature compared with other glasses but the pure borate based glasses possess high phonon energy in the order of 1300-1600 cm−1 [3, 4]. Tellurite oxide (TeO2 ) is a conditional glass former and forms glass only

• Vật lý
• Communications in Physics
• Optical properties of Eu3+ ions in boro tellurite glass
• Eu3+ ions in boro tellurite glass
• Boro tellurite glas
• The electron phonon coupling strength
• Challenges in particle physics and 3 3 1 models
• Particle physics and 3 3 1 models
• Particle theory and field theory models
• The early Universe
• Non standard model neutrino
• The 3 3 1 models in current particle physics
• Current particle physics
• The Standard Model
• The electro weak
• The process of e+e − → µ +µ
• The randall sundrum model
• Supersymmetric model and unparticle physics
• Randall Sundrum model
• Supersymmetric and Unparticle physics
• Handbook of mechanical engineering
• mechanical engineering
• mechanical design
• mechanical materials
• alloy materials
• Energy Technology
• Compact device model for nanoparticle organic memory transistor’s characterization
• Nanoparticle organic memory transistor
• Hybrid integrated circuit
• Hybrid NOMFET CMOS neuromorphic computing circuit
• Microdroplet in T junction microfluidic system
• Experiment and simulation
• T junction microfluidic system
• Lateral channel decrease
• Optical bistability in three level eit configurations
• Three level eit configurations
• Effects of atomic coherence
• OB in V type system
• Dynamical codimension 2 brane
• Warped six dimensional space time
• Codimension 2 brane
• Warped 6D bulk space time
• Coherent diffractive imaging using table top high harmonic generation
• Coherent diffractive imaging
• Table top high harmonic generation
• Growth of single crystals of methylammonium lead mixedhalide perovskites
• Growth of single crystals
• Methylammonium lead mixedhalide perovskites
• Organo lead mixed halide perovskites
• Tuning electronic transport properties
• Zigzag graphene nanoribbons
• Stone wales defect
• Negative differential resistance
• Asymmetric and symmetric ZGNRs
• The transmembrane italian mutant
• The temperature replica exchange molecular dynamics
• TmE22K trimer structure
• Kinetics probably yield
• Electrochemical fabrication of hybrid plasmonic dielectric nanomaterials
• Gold diamond clusters
• Hybrid plasmonic dielectric nanomaterials
• hybrid plasmonic dielectric materials
• Electron microscopy and optical characterization
• X ray absorption fine structure
• BCC crystals studied
• High order expanded debye waller factors
• Debye Waller factors
• Temperature dependent cumulants
• Nonlinear optics in waveguide arrays and photonic nanowires
• Nonlinear optics in waveguide arrays
• Diffractive resonant radiation
• The spectral body of the pulse
• Radion production in high energy photon collisions
• Solve the hierarchy problem
• Energy loss function for lead
• Local field effect
• Adiabatic local density approximation
• First principles calculations shows good agreemen
• Perturbative nonlinear optics in the extreme ultraviolet region
• The extreme ultraviolet region
• Different extreme ultraviole
• Multiple cycle pulses
• Thermodynamic hadron quark phase transition
• Chiral nuclear matter to quark gluon plasma
• Quark gluon plasma
• Equilibrium properties near critical points
• Phase transitions and critical phenomena
• Chirality of light in hybrid modes
• Vacuum clad ultrathin optical fibers
• Ultrathin optical fibers
• Superchiral outside the fiber
• An advanced logarithmic phase mask for extending depth
• Field of hybrid optical systems
• Modulation transfer functions
• Hybrid imaging system
• Hyperon W production in pp collisions at energy 8 tev
• Investigate the hadronization process
• The RICH detector
• The nominal value
• Profile of the 12co(3 2) emission line detected
• The debris disc of 49 ceti
• Require relatively violent
• Generate secondary gas
• Synthesis and optical characterization
• Building block plasmonic gold nanostructures
• Random nano islands
• Random Au nano islands
• Electrochemical performance of Na0
• 44Mno2 synthesized
• Hydrothermal method using as a cathode material
• Sodium ion batteries
• Sodium ion battery
• Stable during cycling