Zobrazeno 1 - 10
of 76
pro vyhledávání: '"V. P. Kozich"'
Publikováno v:
Optics Communications. 263:304-308
We present the studies of nonlinear refraction and nonlinear absorption in promising crystals which are extensively used in Raman lasers or as solid-state laser host materials: Ba(NO 3 ) 2 , KGW, KYW, and KYbW. The single-beam z-scan technique with 1
Autor:
I. G. Poloyko, N. N. Posnov, P. V. Prokoshin, Konstantin Yumashev, F. Mejid, Vladimir L. Kalashnikov, V. P. Kozich, V. P. Mikhailov
Publikováno v:
Optical and Quantum Electronics. 32:43-48
The nonlinear refractive index n2 of Yb3+:KY(WO4)2 crystal has been measured using picosecond Z-scan technique. The magnitude of n2 was found to be 8.7 × 10−16 cm2/W at wavelength of 1.08 μm. The numerical modeling based on fluctuation model show
Publikováno v:
Optics Communications. 171:125-130
Time-delayed wave-mixing with broadband dye lasers was performed in a solution of Sulforhodamine 640 in ethanol at room temperature. The experiments were conducted at various laser powers. The results at low intensities show the behavior of the S 0
Publikováno v:
Optics Communications. 169:97-102
Changing the statistical properties of the noisy radiation of a multi-mode nanosecond YAG:Nd 3+ laser by passing it through a saturable absorber (a methanol solution of polymethine dye 3274-u) is experimentally studied. A considerable increase in the
Publikováno v:
Journal of Raman Spectroscopy. 30:473-477
Publikováno v:
Optics Communications. 125:243-249
The pair correlations between the intensities of input pump laser radiation with spectral bandwidth of 250 cm −1 , which has femtosecond and picosecond noise structures, output depleted pump radiation and Stokes light generated through stimulated R
Publikováno v:
Applied Spectroscopy. 49:1804-1808
The thermal lens effect induced by nanosecond laser pulses in a media having large Kerr nonlinearity is studied. It is shown that thermal lensing is affected by pump-beam self-focusing due to the Kerr nonlinearity, which increases the sensitivity of
Publikováno v:
Applied Spectroscopy. 48:1506-1512
Dual-beam extension of a Z-scan technique has been developed to study the thermal changes in the refractive index resulting from linear and nonlinear absorption in liquids. The experiments were carried out with nanosecond-pulsed Nd:YAG radiation and
Publikováno v:
Applied Spectroscopy. 48:1419-1422
The thermal lensing technique is applied to study two-photon absorption of dye molecules in organic solutions. With the use of a differential two-cell thermal lens spectrometer, the contribution due to one-photon absorption by solvent molecules is su
Publikováno v:
Journal of Applied Spectroscopy. 61:574-581