Journal ArticleDOI
Computer-aided design of diffractive optical elements
TLDR
In this article, a number of iterative algorithms for calculating kinoforms are discussed, including a multiplicative adaptive algorithm allowing the rate of the iterative process to be increased, fast algorithms for interpolating and extrapolating the kinoform phase pixels, and an algorithm for calculating formators of Gauss-Hermite modes in required diffraction orders.Abstract:
A number of iterative algorithms for calculating kinoforms are discussed: a multiplicative adaptive algorithm allowing the rate of iterative process to be increased, fast algorithms for interpolating and extrapolating the kinoform phase pixels, an algorithm for calculating kinoforms forming radially symmetrical images and axial light segments, an algorithm for calculating formators of Gauss-Hermite modes in required diffraction orders, and an algorithm for calculating formators of reference wavefronts. The results of computer simulation are given.read more
Citations
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Proceedings ArticleDOI
Modeling diffractive optics elements and devices
TL;DR: In this article, physical approximations and mathematical tools used when modeling diffractive optics elements and devices are analyzed, including focusing optical elements and a space-based Offner hyperspectral imaging spectrometer.
Journal ArticleDOI
A method of designing diffractive optical elements focusing into plane areas
TL;DR: In this article, a numerical method for designing phase function of diffractive optical elements (DOEs) aimed at focusing into a plane area of complex shape is proposed, which is applied to factorable intensity distribution in the domain of focusing.
Journal ArticleDOI
Метод синтеза композиционных наноматериалов металл/оксид импульсно-периодическим лазерным воздействием
TL;DR: In this article, a method of composite nanomaterials synthesis under metal/oxide pulse-periodic laser treatment has been developed on the example of a metal-semiconductor nanocomposite ZnO/Cu.
Journal ArticleDOI
Iterative calculation of diffractive optical elements focusing into a three-dimensional domain and onto the surface of the body of rotation
TL;DR: In this paper, phase diffractive elements aimed at focusing the laser light into three-dimensional domains or onto the surface of the body of rotation are calculated based on the expansion of the desired transmission function.
Journal ArticleDOI
Analysis of the Advantages of Laser Processing of Aerospace Materials Using Diffractive Optics
TL;DR: In this paper, the authors considered possibilities of an application of diffractive free-form optics in laser processing of metallic materials in aerospace production and developed an algorithm that calculates the spatial distribution of the power density of laser irradiation in order to create the required thermal effect in materials.
References
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Journal ArticleDOI
Reconstruction of an object from the modulus of its Fourier transform.
TL;DR: A digital method for solving the phase-retrieval problem of optical-coherence theory: the reconstruction of a general object from the modulus of its Fourier transform, which should be useful for obtaining high-resolution imagery from interferometer data.
Journal ArticleDOI
Diffractive optical elements: iterative calculation of quantized, blazed phase structures
TL;DR: In this paper, a procedure to calculate a highly quantized, blazed phase structure is presented, which is based on iterative Fourier transform (IFT) algorithms with high diffraction efficiency and a large signal-to-noise ratio.
Journal ArticleDOI
Calculation of the focusators into a longitudinal line-segment and study of a focal area
TL;DR: In this paper, the phase functions of the focusators were calculated using an iterative method modernized with the adaptive subadjustment, which was characterized by the constant light intensity along the line.