搜索结果: 1-13 共查到“光学工程 luminescence”相关记录13条 . 查询时间(0.089 秒)
Local Field Effects in the Luminescence of the Cone-Like Nanohills
Mesoparticle Cone Shape Effective Susceptibility Imperfect Array Luminescence
2013/1/30
The main purpose of the work is to clarify the physical mechanisms which leads to the specific spectrums of the structures [1-3]. The work is based on the ideas of the effective susceptibility. The ef...
Energy transfer from Cr3+ to Nd3+ and NIR luminescence of Nd3+ in lead borate glasses
lead borate glasses Cr3+ and Nd3+ ions
2011/5/5
Energy transfer processes from Cr3+ to Nd3+ and NIR luminescence of Nd3+ ions at 1.06 μm in Cr–Nd co-doped lead borate glasses have been investigated. The spectroscopic investigation indicates that Cr...
Optical and electrical characterization of reverse bias luminescence in InGaN light emitting diodes
GaN LED electroluminescence reverse-bias leakage current hot carrier
2011/5/5
This study investigates the reliability physics of the reverse bias luminescence (RBL) of
InGaN/GaN light emitting diodes. Optical and electrical characterization techniques including
surface temper...
Optical spectra and luminescence kinetics of the Sm3+ and Yb3+ centres in the lithium tetraborate glasses
borate glasses Sm3+ centre Yb3+ centre optical absorption luminescence decay kinetics local structure
2011/5/9
Optical absorption, luminescence excitation, and emission spectra as well as luminescence
kinetics of the Sm- and Yb-doped glasses with lithium tetraborate (Li2B4O7) composition were
investigated an...
Infrared Luminescence Enhancement by UV-Irradiation of H 2 -loaded Bi- Al-doped Fiber
Infrared Luminescence Enhancement UV-Irradiation Bi- Al-doped Fiber
2015/7/16
ArF excimer laser irradiation of H 2 -loaded fibers increases the intensity of both the 1130 and 1390 nm fluorescence in Bi-Al-doped silica fiber by 18 dB and >16 dB.
Visible luminescence and upconversion processes in Bi-doped silica- based fibers pumped by IR radiation
Visible luminescence upconversion processes Bi-doped fibers pumped IR radiation
2015/7/31
The anti-Stokes visible luminescence and upconversion processes in Bi-doped silica-based fibers were investigated. The upconversion coefficients, absorption cross-sections and concentrations of bismut...
Al-free core composition bismuth-doped optical fibre with luminescence band at 1300 nm
Al-free core bismuth-doped optical fibre luminescence band
2015/7/31
Fabrication technique and spectroscopic study of MCVD Bi-Na-doped phosphosilicate glass core optical fibres are discussed. The fibres reveal a broadband luminescence with the maximum in 1300 nm range.
Near-infrared luminescence of rare earth ions in oxyfluoride lead borate glasses and transparent glass-ceramic materials
oxyfluoride glasses transparent glass-ceramics
2011/5/5
Oxyfluoride lead borate glasses singly doped with Nd3+ and Er3+ ions have been studied before and after thermal treatment. The orthorhombic PbF2 crystallites are formed during thermal treatment, which...
Energy transfer from Cr3+ to Nd3+ and NIR luminescence of Nd3+ in lead borate glasses
lead borate glasses Cr3+ and Nd3+ ions
2011/5/5
Energy transfer processes from Cr3+ to Nd3+ and NIR luminescence of Nd3+ ions at 1.06 μm in Cr–Nd co-doped lead borate glasses have been investigated. The spectroscopic investigation indicates that Cr...
Optical spectroscopy and local structure of the Nd3+ luminescence centres in glasses of the CaO–Ga2O3–GeO2 system
germanate glasses Nd3+ centre
2011/5/5
Optical absorption and luminescence spectra as well as luminescence kinetics of the Nd3+ centres in glasses with Ca3Ga2Ge3O12:Nd composition, containing 0.2 and 1.0 wt% of the Nd2O3 were presented and...
Luminescence based on energy transfer in xerogels doped with Tb2–xEux(WO4)3
photoluminescence lanthanide(III) ions
2011/5/5
A series of luminescent materials consisting of Tb2–xEux (WO4)3 entrapped in silica xerogel were successfully prepared. The parameter x in the formula changed from 0.4 to 2. Spectroscopic properties s...
Optical emission from Eu, Tb, Nd luminescence centers in TiO2 prepared by magnetron sputtering
luminescence rare earth elements
2011/5/4
This work presents the results of optical emission from Eu3+, Tb3+ and Nd3+ luminescence centers in TiO2 thin films. Thin films were prepared by magnetron sputtering from metallic Ti-Eu, Ti-Tb, Ti-Nd ...
Assembly of a fast multi resolution spectrophotometer system for simultaneous measurement of absorption and luminescence spectra
dual spectrophotometer, multiresolution spectrophotometer, low temperature fluorescence, benomyl, carbendazime
2011/4/26
In this work, the design and assembly of a dual spectrophotometer system capable of measuring the absorption as well as time resolved luminescence spectra of liquid, gaseous, or solid samples are repo...