Results 11 to 20 of about 6,788 (257)
Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle
Photonics, 2022 One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There is quite a large number of such mirrors based on different principles and exhibiting varying performance.
Vasily Matkivsky +3 more
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Analysis of Predistortion Techniques on Fresnel Zone Plates in Ultrasound Applications
Sensors, 2021 In this work, we analyze the effect of predistortion techniques on the focusing profile of Fresnel Zone Plates (FZPs) in ultrasound applications. This novel predistortion method is based on either increasing or decreasing the width of some of the FZP ...
José Miguel Fuster +3 more
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Frontiers in Energy Research, 2020 Solar desalination is a renewable energy-driven method that produces freshwater from saline/brackish water. Conventional solar desalination units are equipped with an inclined transparent condensing plate placed over a feedwater basin containing saline ...
Wing Sum Choong +2 more
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A theoretical framework for general design of two-materials composed diffractive fresnel lens
Scientific Reports, 2021 Near 100% of diffractive efficiency for diffractive optical elements (DOEs) is one of the most required optical performances in broadband imaging applications.
Ming-Yen Lin +3 more
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Simulation of GHz ultrasonic wave piezoelectric instrumentation for Fourier transform computation
Scientific Reports, 2023 The recent emerging alternative to classic numerical Fast Fourier transform (FFT) computation, based on GHz ultrasonic waves generated from and detected by piezoelectric transducers for wavefront computing (WFC), is more efficient and energy-saving.
Zaifeng Yang +3 more
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Applied Sciences, 2022 Chalcogenide glasses have attracted growing interest for their potential to meet the demands of photonic applications in the Mid-Wavelength InfraRed (MWIR) and Long-Wavelength InfraRed (LWIR) transmission windows.
Pierre Delullier +4 more
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ASM Science Journal, 2019 The presence of near-field indicates the existence of evanescent waves, which is one of the important requirements for the development of an optical sensor.
Wan Maisarah Mukhtar +2 more
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A Fourier-invariant squared Laguerre-Gaussian vortex beam
Компьютерная оптика, 2023 It is shown that a squared Laguerre-Gaussian (LG) vortex beam is Fourier-invariant and retains its structure at the focus of a spherical lens. In the Fresnel diffraction zone, such a beam is transformed into superposition of conventional LG beams, the ...
E.S. Kozlova +3 more
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SNICAR-ADv4: a physically based radiative transfer model to represent the spectral albedo of glacier ice [PDF]
The Cryosphere, 2022 Accurate modeling of cryospheric surface albedo is essential for our understanding of climate change as snow and ice surfaces regulate the global radiative budget and sea-level through their albedo and mass balance. Although significant progress has been
C. A. Whicker +5 more
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EFFECT OF OBJECT REPRESENTATION FORM ON DEPTH RESOLUTION OF RESTORED IMAGES OBTAINED BY SYNTHESIZED FRESNEL HOLOGRAMS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Subject of the Research. The paper presents the study on the effect of object representation form on the depth resolution of images reconstructed via computer-generated Fresnel holograms-projectors. Method.
Sergey N. Koreshev, Marina A. Frolova
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