Zobrazeno 1 - 10
of 102
pro vyhledávání: '"F. Hajiesmaeilbaigi"'
Publikováno v:
مجله علوم و فنون هستهای, Vol 44, Iss 1, Pp 144-150 (2023)
In this study, the amplification of Ti: sapphire laser pulses in a regenerative amplifier with Z geometric arrangement has been demonstrated based on chirped pulse amplification method. Two pocket cells were used to transfer the seed pulses to the am
Externí odkaz:
https://doaj.org/article/33c7ab0639584e219f4d60121e898005
Publikováno v:
مجله علوم و فنون هستهای, Vol 42, Iss 3, Pp 1-7 (2021)
The present work measured the sign and the amount of nonlinear optical absorption coefficient and nonlinear refractive index of gold nanoparticles by Z-scan method. The Ti: sapphire laser is used in two modes: continuous wave and pulsed with 60 fs du
Externí odkaz:
https://doaj.org/article/a55d74c6d8b1421db5467b2b9faaf36f
Akademický článek
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Autor:
Mohammad Barzan, F. Hajiesmaeilbaigi
Publikováno v:
Optik. 159:157-161
Concentration dependence of the optical absorption and fluorescence spectra of Rhodamine 6G dye solution have been investigated. Shift the absorption and the fluorescence peaks with an increase the dye concentration, from 0.1 to 250 μM, is studied.
Autor:
F. Hajiesmaeilbaigi, Hamid Mirzadeh, Mohammad Ali Shokrgozar, Asma motamedi, Shadab Bagheri-Khoulenjani
Publikováno v:
Journal of Biomedical Materials Research Part A. 105:1984-1993
In this study, gold nanoparticles/Polyvinylidenefluoride (PVDF) composite electrospun mat with enhanced piezoelectricity were fabricated and characterized. Gold colloidal nanoparticles (Au NPs) were prepared via laser ablation of metallic targets in
Publikováno v:
Thin Solid Films. 615:1-7
In this study single and double layer of Cu and Zn nanostructure thin films are prepared by pulse laser deposition technique. The samples are characterized by field emission scanning electron microscopy and optical absorption spectroscopy. The nonlin
Publikováno v:
Optik. 202:163480
In this paper, the interaction of the ultra-short chirped laser pulses with silicon has been studied. Chirping effect changes the instantaneous frequency of the ultra-short laser pulses. For correct simulation, the absorption spectrum of the silicon
Publikováno v:
Optical and Quantum Electronics. 50
In this work, nano-porous anti-reflective silica thin films are deposited on the quartz samples by dip-coating in silica sol–gel. After dip-coating, the samples are divided into three groups and each group is heated in an oven with a different dryi
Autor:
R. Goodarzi, F. Hajiesmaeilbaigi
Publikováno v:
Optical and Quantum Electronics. 50
Ultrashort laser pulse interaction with the surface of silicon wafer in air and water environments is investigated. Ti:sapphire laser with 40 femtosecond laser pulses at 790 nm and 10 Hz repetition rate was used. The ablation threshold of the silicon
Autor:
Mohammad Barzan, F. Hajiesmaeilbaigi
Publikováno v:
Optical and Quantum Electronics. 47:3467-3476
Colloidal gold nanoparticles are prepared by laser ablation method and characterized by UV–Visible spectrometry and Transmission Electron Microscopy. Fluorescence quenching of Rhodamine 6G dye with different concentration, from 0.05 to 15 μM, in t