Inverse problem of theory of the laser irradiation scattering in
two-dimensional irregular integrated optical waveguide in the
presence of statistic noise

Egorov, A. A.

doi:10.1002/lapl.200410129

Cited by 9 publications

(11 citation statements)

References 8 publications

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“…In the general case, the irregularities can be either roughness of the interfaces of waveguide media or heterogeneities of the waveguide layer [1][2][3][4][5][6][7][8][9]. Rigorous solution of the inverse problem of the theory of waveguide scattering in an integrated optical waveguide is beyond the scope of this paper and will be given in one of our future publications (see, e.g., [13,14]). Indeed, the inverse problem of waveguide scattering is ill-posed [1-5, 10, 11].…”

Section: Analysis Of the Obtained Formula For The Green's Function Tmentioning

confidence: 99%

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Theory of waveguide light scattering in an integrated optical waveguide in the presence of noise

Egorov

2005

Radiophys Quantum Electron

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We develop a vector theory of waveguide monochromatic light scattering in an integrated optical waveguide with arbitrary three-dimensional irregularities in the presence of noise. The electrodynamical problem of laser radiation scattering in an irregular waveguide is solved by the method of coupled modes with the help of the theory of perturbations. The approximate solution of the inhomogeneous three-dimensional wave equation is derived by the method of modes and the method of Green's functions. The obtained Green's function is analyzed for the cases of propagating and evanescent modes of an irregular asymmetric optical waveguide. Analytical formulas for the nearand far-zone radiation fields are presented. A preliminary analysis of these formulas is given.

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Section: Analysis Of the Obtained Formula For The Green's Function Tmentioning

confidence: 99%

“…(14) and (3), we can explicitly write the desired Green's function G(x, y, z; x , y , z ) of the initial inhomogeneous three-dimensional wave equation (2):…”

Section: Derivation Of the Three-dimensional Waveguide Green's Functimentioning

confidence: 99%

Theory of waveguide light scattering in an integrated optical waveguide in the presence of noise

Egorov

2005

Radiophys Quantum Electron

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“…Example include, in addition to nanotechnology, e.g., Refs. , laser scattering , seismology , climate science , molecular chemistry , analysis of infra‐red spectra of planetary surfaces , to name just a few.…”

Section: Inverse Approachmentioning

confidence: 99%

Utilization of inverse approach in the design of materials over nano‐ to macro‐scale

Mlinar

2015

Annalen der Physik

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In the light of recent developments in computer technology, a promising and efficient way to design a material with a desired property would be to solve the inverse problem: use a physical property to predict structure. Here, we discuss the basic idea and mathematical foundation of the inverse approach, and proposed strategies for its utilization in the design of materials over nano-to macro-scales. At the nano-scale, analyzed strategies include scanning of a highdimensional space of chemical compounds for those compounds that have a targeted property, and identification of correlations in large databases of materials. However, unlike utilization of inverse approach at nano-scale where full structural information -atoms and their positions-is linked to targeted properties, at the meso-and macro-scale, only partial structural information, manifested via structural motifs or representative volume elements, is available. We discuss the role of partial structural information in the inverse approach to the design of materials at those scales. Risks and limitations of the inverse approach are analyzed and dependence of the approach on factors such as structure parametrization, approximations in theoretical models, and feedback from structural characterization, is addressed.

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“…Although side-scattering properties of optical fibers and optical slab waveguides have been studied and corresponding experiments have been done, [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] such studies of multilayer waveguide memories are seldom reported. We investigate this problem by building a simplified model.…”

Section: The Model Representationmentioning

confidence: 99%

Side-scattering properties of a novel waveguide multilayer memory

et al. 2006

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The signal of a novel waveguide multilayer memory ͑WMM͒ is the side-scattered beam emitted from information pits. Side scattering plays a key role in the data readout of the WMM. In this paper, a model is proposed to investigate the side-scattering properties of the WMM. We not only theoretically and experimentally confirm the exponential attenuation distribution of the side-emission scattered light intensity of a waveguide with constant attenuation coefficient, but also deduce an expression for the relation between the attenuation coefficient and the light propagation distance of a waveguide with distributed attenuation coefficient when the side-scattered light intensity is uniform. Furthermore, a possible method to realize the uniformity of the side-emitted light intensity is demonstrated. These results will contribute to the improvement of the performance of the WMM.

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Inverse problem of theory of the laser irradiation scattering in two-dimensional irregular integrated optical waveguide in the presence of statistic noise

Cited by 9 publications

References 8 publications

Theory of waveguide light scattering in an integrated optical waveguide in the presence of noise

Theory of waveguide light scattering in an integrated optical waveguide in the presence of noise

Utilization of inverse approach in the design of materials over nano‐ to macro‐scale

Side-scattering properties of a novel waveguide multilayer memory

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