Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Nazar Ftomyn"'
Publikováno v:
Journal of Applied Crystallography. 56:432-438
A dual-wavelength polarimetric technique at 633 and 661 nm has been used for the characterization of a nonlinear lithium triborate (LiB3O5) nonenantiomorphous biaxial crystal. The mismatch of the crystallographic and optical coordinate systems was ta
Publikováno v:
Journal of Applied Crystallography. 54:1615-1620
A high-accuracy polarimetric technique has been used for the characterization of a lead germanate ferroelectric single crystal. The measurement results of the linear and circular birefringence in the [010] direction at a wavelength of 633 nm under th
Autor:
Nazar Ftomyn, Ya. I. Shopa
Publikováno v:
Journal of Physical Studies. 24
Publikováno v:
Opto-Electronics Review. 25:6-9
A dual-wavelength optical polarimetric approach has been proposed as a means of elimination of the systematic errors and estimation of the optical anisotropy parameters for a single DKDP crystal. Our HAUP-related polarimeter uses two semiconductor la
Autor:
Mykola Shopa, Nazar Ftomyn
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 36(4)
We propose the analysis of 2D intensity contour maps which is based on the optical transmission function for the polarizer-specimen-analyzer system. A small modification of the high-accuracy universal polarimeter (HAUP) technique was used to measure
Publikováno v:
Solid State Phenomena. 230:178-183
The polarizability theory of optical activity (OA) is used to investigate the correlation between structure peculiarities and optical properties of crystals of the langasite family. Optical rotation (OR) is calculated as the function of disordering s
Autor:
Yaroslav Shopa, Nazar Ftomyn
Publikováno v:
Solid State Phenomena. 200:129-133
A calculation technique based on the polarizability theory for optical activity (OA) is applied to derive optical rotatory power (ORP) for the La3Ga5.5Ta0.5O14 (LGT). Dispersions of both the ordinary and extraordinary refractive indices and the ORP a
Publikováno v:
Journal of the Optical Society of America A. 34:943
A method of high-accuracy polarimetry, which includes optical activity measurements’ systematic errors, was realized with a dual-wavelength polarimeter for the two wavelengths of 635 and 650 nm. Simultaneous measurements with neighboring wavelength
Publikováno v:
International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014).
Autor:
Ya. Shopa, Nazar Ftomyn
Publikováno v:
2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE).
The polarizability theory of optical activity (OA) is applied to calculation the optical rotation (OR) of the langasite family crystals. The dispersion of OR is calculated. The good agreement between both calculated and observed optical anisotropy pa