Effective Values of Variable Components of the Refractive Index upon Nonlinear Recording of Phase Holograms

Fit’o, V. M.; Smirnova, T. V.

doi:10.1134/1.1771434

Cited by 5 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, both the results of [2] and the analysis of the coupled wave equations proposed in [4] lead to the conclusion that the analytical dependence of the diffraction efficiency on n 1 , n 2 and n 3 may be obtained by a more simple way without an analytical solving of the system of six differential equations. This method has been examined in [6,7] where a good agreement of the results obtained by the proposed method and by a numerical solving of the system of differential equations was achieved for a number of particular cases.…”

Section: Introductionmentioning

confidence: 78%

“…Similar expressions for the dependencies of Z 2 on n 2 and n 1 have been obtained in [5,6]. They were also derived using the coupled wave analysis in the threewave approximation.…”

Section: Introductionmentioning

confidence: 88%

“…For p-polarized wave n 2ef will be equal to [6] n ðpÞ 2ef ¼ n 2 cos 2y B2 ð ÞÀ n 1 cos y B2 ð Þ 2 4n 0 sin 2 ðy B2 =2Þ .…”

Section: Article In Pressmentioning

confidence: 99%

“…For the wave of p-polarization, according to [6], n 1ef can be presented as n ðpÞ 1ef ¼ n 1 cosð2y B1 Þ þ n 1 cosðy À y B1 Þn 2 cosðy þ y B1 Þ n 0 cos yðcos y B1 À cos yÞ .…”

Section: (25)mentioning

confidence: 99%

“…Thus, the best-adjusted values obtained are: n 2ef ¼ À0.00235, n 3ef ¼ 0.00073. The sign before n 1ef , n 2ef and n 3ef was chosen according to [6] and Fig. 2.…”

Section: Numerical Computation Of the Diffraction Efficiency Of Thickmentioning

confidence: 99%

See 4 more Smart Citations

Analysis of the diffraction by the gratings generated in the materials with a nonlinear response

Fitio

Sakhno

Smirnova

2008

Optik

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 78%

“…Similar expressions for the dependencies of Z 2 on n 2 and n 1 have been obtained in [5,6]. They were also derived using the coupled wave analysis in the threewave approximation.…”

Section: Introductionmentioning

confidence: 88%

“…For p-polarized wave n 2ef will be equal to [6] n ðpÞ 2ef ¼ n 2 cos 2y B2 ð ÞÀ n 1 cos y B2 ð Þ 2 4n 0 sin 2 ðy B2 =2Þ .…”

Section: Article In Pressmentioning

confidence: 99%

“…For the wave of p-polarization, according to [6], n 1ef can be presented as n ðpÞ 1ef ¼ n 1 cosð2y B1 Þ þ n 1 cosðy À y B1 Þn 2 cosðy þ y B1 Þ n 0 cos yðcos y B1 À cos yÞ .…”

Section: (25)mentioning

confidence: 99%

“…Thus, the best-adjusted values obtained are: n 2ef ¼ À0.00235, n 3ef ¼ 0.00073. The sign before n 1ef , n 2ef and n 3ef was chosen according to [6] and Fig. 2.…”

Section: Numerical Computation Of the Diffraction Efficiency Of Thickmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of the diffraction by the gratings generated in the materials with a nonlinear response

Fitio

Sakhno

Smirnova

2008

Optik

View full text Add to dashboard Cite

Amplified spontaneous emission in polymer–CdSe/ZnS-nanocrystal DFB structures produced by the holographic method

et al. 2009

View full text Add to dashboard Cite

Amplified spontaneous emission (ASE) is demonstrated in volume-distributed feedback (DFB) structures, formed by colloidal CdSe/ZnS nanocrystals and ZrO2 nanoparticles (NPs) in a polymer matrix. Periodic redistribution of the NPs in an organic matrix was carried out by holographic photopolymerization in a specially developed light-sensitive nanocomposite. The composite consists of two acrylate monomers and two types of inorganic NPs. The NPs provide for the formation of two co-phased gratings-a refractive index grating and an optical gain (losses) grating. The core-shell CdSe/ZnS nanocrystals are used as a gain medium, while ZrO2 NPs create the refractive index grating and enhance the distributed feedback. The period of the volume structure provides the feedback for lasing at the wavelength lambda(las) of about 575 nm in the second diffraction order. In contrast to known laser systems based on volume DFB cavities, in which the different components of the formulation provide optical gain and feedback, in our case the inorganic NPs serve as an emitting material and can provide simultaneously for feedback. By pumping of DFB structures by a titanium-sapphire laser (lambda(pump) = 400 nm, pulse duration of 120 fs) normal to the sample plane, the appearance of a sharp stimulated emission along the grating-vector direction is observed. Output intensity of ASE as a function of the pump energy shows a threshold behavior and full width at half-maximum (FWHM) of the ASE spectral band decreases from 33 to 12 nm.

show abstract

Simple and high performance DFB laser based on dye-doped nanocomposite volume gratings

et al. 2014

View full text Add to dashboard Cite

This letter reports on the optimized design and operation performance of a second order distributed feedback (DFB) dye laser based on an active organic waveguide with a volume Bragg grating. The DFB gratings were inscribed holographically in a dye-doped organic nanocomposite containing high refractive index inorganic nanoparticles. In this work we experimentally investigated and theoretically analyzed the influence of waveguide and grating parameters on the spectral and energy characteristics of this kind of DFB laser in order to obtain a narrow-band emission of low divergence. We will show that a tailored improvement of the waveguide and grating parameters provides a low-threshold laser emission in the spectral range of 570-620 nm with a linewidth of less than 0.05 nm and an output beam profile close to a Gaussian distribution.

show abstract

Effective Values of Variable Components of the Refractive Index upon Nonlinear Recording of Phase Holograms

Cited by 5 publications

References 4 publications

Analysis of the diffraction by the gratings generated in the materials with a nonlinear response

Analysis of the diffraction by the gratings generated in the materials with a nonlinear response

Amplified spontaneous emission in polymer–CdSe/ZnS-nanocrystal DFB structures produced by the holographic method

Simple and high performance DFB laser based on dye-doped nanocomposite volume gratings

Contact Info

Product

Resources

About