Measurement of wavefront curvature using computer-generated holograms

Kovalev, M. S.; Krasin, George; Одиноков, С. Б.; Solomashenko, A. B.; Zlokazov, E. Yu.

doi:10.1364/oe.27.001563

Cited by 31 publications

(18 citation statements)

References 21 publications

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“…An iterative algorithm was implemented in [4], which allows one to detect any number of aberrations. However, the implementation of this method requires the use of a Fourier transform lens, which imposes certain requirements on the alignment of the system and leads to an increase in its size.…”

Section: Modified Wavefront Aberration Measurement Algorithmmentioning

confidence: 99%

“…Microdisplays are used more and more often as metrological tools for monitoring parameters of laser beams, in adaptive atmospheric sounding systems, imaging optical holography systems, etc. [4,5]. The development of computer technologies as well as solid-state singe pixel and matrix optical detectors has created a new direction in holography-Digital holography.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms

Krasin

Kovalev

Stsepuro

et al. 2020

Sensors

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All of the existing holographic wavefront sensors are either bulky or have low accuracy of measuring wavefront aberrations. In this paper, we present an improvement of the holographic method of measuring wavefront aberrations using computer-generated Fourier holograms. The novelty of this work lies in the proposed approach to the synthesis of Fourier holograms, which are implemented using phase-only SLM. The main advantages of this method are the increased diffraction efficiency compared to the previously known methods, and the more compact implementation scheme due to the elimination of the conventional Fourier-lens. The efficiency of the proposed method was confirmed by numerical simulation and optical experiments.

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Section: Modified Wavefront Aberration Measurement Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms

Krasin

Kovalev

Stsepuro

et al. 2020

Sensors

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show abstract

“…Стоит отметить, что при рассмотрении областей применения различных модуляторов следует исходить из их практических возможностей. Функциональная роль ПМС в современных системах фотоники весьма многогранна: в системах отображения информации [5], в оценке качества световых пучков [6][7][8][9], в голографических системах памяти [10,11], в различных корреляторах [12] и т. д.…”

Section: Introductionunclassified

Определение Функции Рассеяния Точки Компьютерно-Синтезированной Линзы, Сформированной Фазовым Модулятором Света

Сцепуро¹,

Красин²,

Ковалев³

et al. 2020

Журнал Технической Физики

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In various areas of photonics, there is a tendency to move from elements of physical optics to elements of flat optics, primarily due to reducing dimensions of instruments and devices. Usually, spatial light modulators are used to quickly output flat phase elements. In this paper, the possibility of replacing the optical system with a computer-generated lens was investigated. The novelty of the work lies in a comparative analysis of point spread functions formed by an optical system and a computer-synthesized lens. Numerous experiments confirm the result.

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“…Такие рельефно-фазовые структуры, как дифракционные оптические элементы (ДОЭ), в последнее время все чаще применяются для замены элементов физической оптики [1][2][3][4]. Одной из сфер их применения являются устройства дополненной реальности, современные тенденции развития которых связаны с разработкой различных вариантов структуры ДОЭ для световодных пластин [5][6][7].…”

Section: Introductionunclassified

Экспериментальные Исследования Различных Полимерных Композиций Для Создания Рельефно-Фазовых Дифракционных Решеток Для Систем Дополненной Реальности

Соломашенко¹,

Красин²,

Дроздова³

2020

Журнал Технической Физики

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The possibility of copying high-frequency diffraction gratings obtained in a photoresist layer to glass substrates using polymer compositions (“OKM” and “Tekhnovit”) is shown and their comparative analysis is carried out. The mechanism of copying the relief-phase structure is based on a two-stage process consisting of the following steps: obtaining a nickel master, applying a polymer composition to it and curing under the influence of UV radiation. The copying modes were optimized (time, exposure, thickness of the polymer base), and that allowed to obtain relief phase diffraction gratings with a surface relief depth comparable with the initial structure obtained in the photoresist layer. The diffraction efficiency of the resulting gratings was estimated, as well as the change in the depth of the surface relief of polymer copies obtained from one master.

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Measurement of wavefront curvature using computer-generated holograms

Cited by 31 publications

References 21 publications

Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms

Lensless Scheme for Measuring Laser Aberrations Based on Computer-Generated Holograms

Определение Функции Рассеяния Точки Компьютерно-Синтезированной Линзы, Сформированной Фазовым Модулятором Света

Экспериментальные Исследования Различных Полимерных Композиций Для Создания Рельефно-Фазовых Дифракционных Решеток Для Систем Дополненной Реальности

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