
Hamid Reza Darabianensemble 3 · Functional Materials Technology
Hamid Reza Darabian
Doctor of Philosophy
About
15
Publications
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Introduction
Hamid Reza Darabian currently works at the physics department of Federal University of Juiz de Fora. Hamid does research in Optics and condense matter. Their current project is 'Spectroscopy of semiconductor by the differential photoreflactance.'
Additional affiliations
Education
March 2016 - February 2020
Publications
Publications (15)
In this study, structural and thermal features of phosphate glasses doped with diluted magnetic semiconductors are investigated. The samples were ZnTe nanocrystals doped with different concentrations of Cr and Mn. UV-visible absorption spectra showed the presence of Cr²⁺ and Cr³⁺ ions into the matrix. Depolymerization of the phosphate network is ob...
In the present work, thermal and nonlinear properties of tellurite glasses doped with Tm2O3 were investigated by means of thermal lens, thermal relaxation and z-scan measurements. The composition of the samples was (78 − x) TeO2 + 4.5 Bi2O3 + 5.5 ZnO + 10.5 Li2O + 1.5 Nb2O5 + xTm2O3 (x = 0.05, 0.1, 0.5, 1.0 and 1.5 mol%). Thermal diffusivity (D), s...
A B S T R A C T K E Y W O R D S LIDAR is a well-known remote sensing instrument that is particularly has been used to measurement of atmospheric parameters. The setup basically includes a receiver and transmitter. In a bistatic LIDAR, transmitter and receiver are divided by a certain distance. The measurement of the resolution in different atmosphe...
Using first-principles calculations and La3Te4 as an example of an n-type gapped metal, we demonstrate that gapped metals can develop spontaneous defect formation resulting in off-stoichiometric compounds. Importantly, these compounds have different free carrier concentrations and can be realized by optimizing the synthesis conditions. The ability...
Doping glass with semiconductors, particularly with nanostructured semiconductors, has attracted attention due to the large optical absorption cross-sections of the latter. Based on this property, Ni[Formula: see text] (5 wt%) doped phosphate glass and Zn[Formula: see text]Ni[Formula: see text]Te (x = 0.5, 1.0, 5.0 and 10.0 wt% of Ni[Formula: see t...
Using the first-principles calculations and La3Te4 as an example of an n-type gapped metal, we demonstrate that gapped metals can develop spontaneous defect formation resulting in off-stoichiometric compounds. Importantly, these compounds have different free carrier concentrations and can be realized by optimizing synthesis conditions. The ability...
In this study, structural and thermal properties of dispersed carbon nanomaterials such as single-wall carbon nanotubes and graphene in water are investigated. Carbon nanostructures are dispersed in the fluid through surfactant and ultrasonication treatment. Structural studies of the samples are carried out by Raman spectroscopy which show that the...
Here, we report CA Z-Scan results for 80TeO 2 .20ZnO: x Dy ³⁺ glasses ( x =1 . 0,2 . 0mol%). Both samples presented a self-focusing lens like behavior, with a nonlinear refractive index varying from (5 . 87 ± 0 . 04)10 ⁻ ¹⁵ cm ² /W to (20 . 37 ± 0 . 09)10 ⁻ ¹⁵ cm ² /W.
In this study, structural and thermal features of phosphate glasses doped with diluted magnetic semiconductors are investigated. The samples were ZnTe nanocrystals doped with different concentrations of Cr and Mn. UV-visible absorption spectra showed the presence of Cr2+ and Cr3+ ions into the matrix. Depolymerization of the phosphate network is ob...
In the present work thermal and nonlinear properties of tellurite glasses doped with Tm2O3 were investigated by means of thermal lens, thermal relaxation and z-scan measurements. The composition of the samples were (78-x) TeO2 + 4.5 Bi2O3 + 5.5 ZnO + 10.5 Li2O + 1.5 Nb2O5 + xTm2O3 (x = 0.05, 0.1, 0.5, 1.0 and 1.5 mol%). Thermal diffusivity (D), spe...
Questions
Question (1)
We want to use 100 fs, tunable laser (680nm - 1064nm) for this setup (power: 3 W in 800 nm).
But I don't know which parameters are very important to choose the proper detector in this kind of setup.
Thanks.