The spectral dependence of optical activity in bismuth silicate (Bi12SiO20) and bismuth germanate (Bi12GeO20) crystals was experimentally studied in the wavelength range of 488–1150nm. It was shown that the specific rotation of the polarization plane of light has maximal values at short wavelengths and decreases with increasing wavelength in the infrared range. It wasfound that in the spectral transparency range from 632.8 to 1150 nm, the dispersion of polarization rotation in these crystals is well described by the Drude equations. The gyration constant at a wavelength of 632.8 nm was also determined for these crystals.
| Mualliflar | Ахмеджанов, Ф.Р., Авдиевич, В.Н., Элбоева, M.И., Улашов, А.А. |
|---|---|
| Jurnal | O‘zbekiston fizika jurnali |
| Nashr sanasi | 2026-05-08 |
| Jild | 28 |
| Son | 1 |
| Til | Rus |
| DOI | 10.52304/.v28i1.639 |
DOI: 10.52304/.v28i1.639 · Maqolaning asl sahifasi
оптическая активность, дисперсия, кристаллы германата и силиката висмута, удельное вращение плоскости поляризации, optical activity, dispersion, bismuth germanate and bismuth silicate crystals, specific rotation of the polarization plane
The elemental composition of GaAs(O):Cr was determined using energy-dispersive spectroscopy and found to be: gallium 47.71 at.%, arsenic 44.37 at.%, chromium 0.10 at.%, and oxygen 7.82 at.%. The material was found to…
In the present article, the structure of magnetic domains and the mechanisms of their formationin the Fe5Ga6Gd2YZr crystal are examined. The processes of domain emergence, the regularities of their reconfiguration under…
In combined processing methods, the influence of cavitation phenomena within the dischargechannel on dispersion efficiency remains insufficiently explored. This study utilizes a theoretical and computational approach…
In the work, the synthesis processes of graphene layers within polymer materials under theinfluence of high temperature and laser energy are investigated. During thermal stimulation,the carbonization and…
The structure, composition and some physico-chemical properties of the nanocomposite basedon the mixture of natural polyamide base and FeO filler were studied using elemental analysis,IR-spectroscopy, X-ray phase…
This study describes the morphological, optical, and photocatalytic properties of TiO2 nanostructures synthesized from FTO-coated glass plates. Studies have shown that TiO2 nanocrystals with diameters of 50-70 nm can be…
We present a systematic theoretical investigation of third-order nonlinear optical effects enhancement in spherical gold nanoparticles within the quasi-static approximation. The dielectric response of gold is described…
This paper presents a theoretical studying the effects of strain and compositional variations onthe linear and nonlinear optical properties of InP/InAs1-xPx/InP quantum wells. The Schrödinger equation was solved to…
The magnetic circular polarization of luminescence (MCPL) spectra of Na0,375Tb0,625F2,25 wereinvestigated in the visible spectral region. An intense luminescence band located in the wavelength range of 535–560 nm…
This work presents a numerical investigation of second-harmonic generation (SHG) by ultrashort femtosecond laser pulses in nonlinear photonic crystals of gallium nitride (GaN) with periodically modulated second-order…