Вырожденное четырехволновое взаимодействие на пропускающих голографических решетках в кристалле Bi-=SUB=-12-=/SUB=-TiO-=SUB=-20-=/SUB=- среза (110)

The regularities of the stationary degenerate four-wave mixing on transmission holographic gratings formed in the Bi12TiO20 crystal of the (110)-cut are analyzed. The system of differential equations has been obtained; this system that can be used to find the components of the vector amplitudes of linearly polarized light waves in the case of four-wave mixing on phase and phase-amplitude holographic gratings. The theoretical model take into account the linear electrooptic, the photoelastic and the inverse piezoelectric effects, as well as natural optical activity, circular dichroism and crystal absorption. The values of the orientation angle and the crystal thickness where the reflection coefficient can reach maximum values are determined. It was experimentally found that the reflection coefficient can reach 2.4 with an optimal choice of the orientation angle in the Bi12TiO20 crystal of (110)-cut with the thickness of 7.7 mm. It is shown that the best agreement between theoretical and experimental data is achieved if the phase-amplitude structure of transmission holographic gratings formed in the Bi12TiO20 crystal is taken into account in the mathematical model of diffraction.

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Четырехволновое взаимодействие на фазово-амплитудных голографических решетках в фоторефрактивном пьезокристалле класса симметрии 43m

Оптика и спектроскопия ◽

10.21883/os.2022.03.52167.2936-21 ◽

2022 ◽

Vol 130 (3) ◽

pp. 387

Author(s):

В.Н. Навныко

Keyword(s):

Experimental Data ◽

Wave Equations ◽

Orientation Angle ◽

Four Wave Mixing ◽

Wave Mixing ◽

Gaas Crystal ◽

Holographic Gratings ◽

Coupled Wave Equations ◽

Phase Amplitude ◽

Coupled Wave

A system of coupled-wave equations for calculating the vector amplitudes of linearly polarized light waves at four-wave mixing by phase-amplitude holographic gratings in a cubic photorefractive semiconductor of an arbitrary cut belonging to the 4 ̅3m symmetry class is presented. The dependences of the intensities of the polarization components of the reversed light wave on the orientation angle for GaAs crystal of (110)-cut are calculated on the basis of the numerical solution of the system of coupled-wave equations. The obtained dependences are compared with the known theoretical and experimental data. It is shown that the best agreement between the results of theoretical modeling and experimental data at calculating the counterpropagating four-wave mixing in GaAs crystal of (110)-cut is achieved if formation of several phase-amplitude holographic gratings is allowed, and the contribution of the photoelastic and inverse piezoelectric effects are taken into account together with absorption of the crystal.

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Erratum: “Response functions for dimers and square-symmetric molecules in four-wave-mixing experiments with polarized light” [J. Chem. Phys. 123, 044102 (2005)]

The Journal of Chemical Physics ◽

10.1063/1.2837465 ◽

2008 ◽

Vol 128 (10) ◽

pp. 109902 ◽

Cited By ~ 8

Author(s):

Eric Ryan Smith ◽

Darcie A. Farrow ◽

David M. Jonas

Keyword(s):

Polarized Light ◽

Four Wave Mixing ◽

Chem Phys ◽

Wave Mixing ◽

Response Functions

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Degree of Asymmetry of CdSe Quantum Dots Grown in Glass Probed by Four Wave Mixing

MRS Proceedings ◽

10.1557/proc-789-n15.2 ◽

2003 ◽

Vol 789 ◽

Author(s):

A. I. Filin ◽

K. Babocsi ◽

M. Schmitt ◽

P. D. Persans ◽

W. Kiefer ◽

...

Keyword(s):

Quantum Dots ◽

Decay Time ◽

Polarized Light ◽

Four Wave Mixing ◽

Experimental Result ◽

Growth Time ◽

Wave Mixing ◽

Nanoparticle Growth ◽

The Difference ◽

Kinetics Of

ABSTRACTInformation about quantum dot (QD) asymmetry is derived by analyzing the polarization properties of the time-integrated four wave mixing (FWM) signal. The lowering of QD symmetry results in the splitting of bright J= +/-1 exciton states. This causes the polarization oscillation of circularly excited excitons between these two split states. In a QD ensemble with a random distribution in the exciton level splitting, this results in the decay of the difference in FWM signals observed in scattering of σ+ and σ+ polarized light on the population grating created by two σ+ pulses, the decay time reflecting the degree of QD asymmetry. We have investigated the decay time of the difference in two polarized signals for quantum dots of equal size, grown in a glass matrix under different conditions. Increasing growth temperature and decreasing growth time lead to lowering of QD symmetry. We discuss this experimental result in terms of kinetics of nanoparticle growth in glass.

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Formation of holographic gratings and dynamics of four-wave mixing in nonlinear microresonators

10.1117/12.676523 ◽

2006 ◽

Author(s):

Oleg Romanov ◽

Omar Ormachea ◽

Alexei Tolstik ◽

José Luis Arce Diego ◽

David Pereda Cubian ◽

...

Keyword(s):

Four Wave Mixing ◽

Wave Mixing ◽

Holographic Gratings

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Влияние поляризации считывающей волны и циркулярного дихроизма на дифракционную эффективность отражательной голограммы в кубическом оптически активном фоторефрактивном поглощающем пьезокристалле

Оптика и спектроскопия ◽

10.21883/os.2021.01.50441.221-20 ◽

2021 ◽

Vol 129 (1) ◽

pp. 66

Author(s):

В.Н. Навныко ◽

В.В. Шепелевич ◽

С.М. Шандаров

Keyword(s):

Circular Dichroism ◽

Diffraction Efficiency ◽

Polarized Light ◽

Crystal Thickness ◽

Light Waves ◽

Linearly Polarized ◽

Reflection Hologram ◽

Phase Amplitude ◽

Circular Dichroïsm ◽

Phase Reflection

In the approximation of slowly varying amplitudes, a system of coupled waves equations is obtained, which is applicable for describing the diffraction and coupling of elliptically polarized light waves on a volume phase-amplitude holographic grating formed in a cubic optically active photorefractive absorbing piezoelectric crystal. The dependence of the diffraction efficiency of the phase reflection hologram on the ellipticity of the readout wave and the thickness of the Bi12SiO20 crystal of the (001) and (111) cuts was studied. The regularities of the effect of circular dichroism on the diffraction efficiency of the phase reflection hologram are analyzed. It is shown that for crystal of (001)-cut the maximum diffraction efficiency of the reflection hologram depending on the crystal thickness can be achieved using a readout wave both with linear polarization and with elliptical polarization. For crystal of (111)-cut the highest diffraction efficiency is achieved using a linearly polarized readout wave. It has been established that the effect of circular dichroism on the intensity of the reconstructed wave depends on the cut of the crystal, the ellipticity of the readout wave and the thickness of the crystal.

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