نتایج جستجو برای: z scan technique
تعداد نتایج: 823965 فیلتر نتایج به سال:
Erratum: “Degenerate multi-wave mixing using Z-scan technique” [Appl. Phys. Lett. 93, 021118 (2008)]
Although nonlinear optical spectroscopy of nanostructures, nanomaterials, and nanomedicines has been widely used to observe study the nature (NLO) phenomena, field improve for single nanostructure system. However, it is extremely difficult investigate behaviors materials because setup in experiment obligate a high resolution imaging arrangement overcome diffraction limit problem. This paper pre...
In this paper, the nonlinear refractive index of colloidal gold nanoparticles under continuous wave illumination is investigated with the z-scan technique. Gold nanoparticles were synthesized using ascorbic acid as reductant, phosphates as stabilizer and cetyltrimethylammonium chloride (CTAC) as surfactant agent. The nanoparticle size was controlled with the CTAC concentration. Experiments chan...
Optical nonlinearities of periodically poled LiNbO(3) crystals were investigated by the single beam Z-scan technique with a continuous wave (cw) laser beam at 532 nm. The nonlinear optical absorption coefficient and refractive index change are determined to be 8.1 x 10(-6) cm/W and 2.6 x 10(-4) at 0.5 MW/cm(2) light intensity, respectively. Both sign and magnitude of the measured refractive non...
The nonlinear optical properties of carbon nanotubes (CNTs) have been studied by using the Z-scan technique. Experiments are performed by CW second harmonic of Nd-YAG laser at 532 nm wavelength with a power of 40 mW. The samples are synthesized by the chemical vapor deposition (CVD) method in the presence of Nickel and Nickel-Cobalt catalysts. In this work, for the first time, effect of the typ...
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