Results 11 to 20 of about 2,528 (265)
Photonics, 2022 Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step.
Shivasubramanian Gopinath +10 more
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Linearly modulated multi-focal diffractive lens for multi-sheet excitation of flow-driven samples in a light-sheet fluorescence microscope [PDF]
EPJ Web of Conferences, 2022 Light-sheet fluorescence microscopy (LSFM) with single light-sheet illumination enables rapid 3Dimaging of living cells. In this paper we show the design, fabrication and characterization of a diffractive optical element producing several light sheets ...
Hofmann Meike +5 more
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Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012 We propose a new approach to generating a pair of initial beams for a polarization converter that operates by summing up two opposite-sign circularly polarized beams.
S. V. Karpeev +4 more
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Two-photon imaging with diffractive optical elements [PDF]
Frontiers in Neural Circuits, 2009 Two-photon imaging has become a useful tool for optical monitoring of neural circuits, but it requires high laser power and serial scanning of each pixel in a sample. This results in slow imaging rates, limiting the measurements of fast signals such as neuronal activity. To improve the speed and signal-to-noise ratio of two-photon imaging, we introduce
Watson, Brendon O. +2 more
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Comparison of far field characterisation of DOEs with a goniometric DUV-scatterometer and a CCD-based system [PDF]
Journal of the European Optical Society-Rapid Publications, 2011 We have measured far field diffraction patterns of different diffractive optical elements at an illumination wavelength of 193 nm using a new type of goniometric DUV (deep ultraviolet) scatterometer.
Wurm Matthias +3 more
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Nonlinear Diffractive Optical Elements
Optics Express, 2007 We propose diffractive optical elements with a spatially-varying nonlinear refractive index. Such a component acts as a diffractive optical element whose properties depend on the intensity of the incoming beam. We present a method for designing such elements, and as specific examples we study three types of nonlinear diffractive optical elements ...
Ofer, Manela, Mordechai, Segev
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High Concentration Photovoltaics (HCPV) with Diffractive Secondary Optical Elements
Photonics, 2019 Multi-junction solar cells can be economically viable for terrestrial applications when operated under concentrated illuminations. The optimal design of concentrator optics in high concentration photovoltaics (HCPV) systems is crucial for achieving high ...
Furkan E. Sahin, Musa Yılmaz
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Selective modification of dual phase steel DP 1000 by laser action using diffractive optical element [PDF]
Компьютерная оптика, 2019 Experimental studies of shaping a CO2 laser beam with a reflective diffractive optical element have been performed. To increase the aperture of the initial beam, we used a collimator containing a system of two plane-convex spherical ZnSe lenses.
Serguei Murzin, Maksim Blokhin
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Nanooptical elements for visual verification
Scientific Reports, 2021 This paper focuses on the development of flat diffractive optical elements (DOEs) for protecting banknotes, documents, plastic cards, and securities against counterfeiting.
Alexander Goncharsky +3 more
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Achromatic diffractive liquid-crystal optics for virtual reality displays
Light: Science & Applications, 2023 Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics.
Zhenyi Luo +4 more
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