Results 21 to 30 of about 8,192 (300)
Journal of Nanotechnology, 2012 We present a new and viable method for optical rectification. This approach has been demonstrated both theoretically and experimentally and is the basis fot the development of devices to rectify radiation through the visible.
N. M. Miskovsky +6 more
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Unidirectional ion transport in nanoporous carbon membranes with a hierarchical pore architecture
Nature Communications, 2021 Ion transport through nano channels can exhibit intriguing non-linear behaviour. Here, Chen et al. fabricate a hierarchical system of sandwiched carbon membranes of wide and narrow pores with substantial enhancement in rectification ratio of the ionic ...
Lu Chen +6 more
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Cherenkov-Type Terahertz Generation by Long-Wavelength Ultrafast Laser Excitation of a GaP Crystal
Photonics, 2023 We explore, both theoretically and experimentally, the potential of semiconductor materials for the Cherenkov scheme of terahertz generation on the example of GaP crystal pumped by femtosecond laser pulses of 1.54 μm wavelength.
S. B. Bodrov +6 more
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Dynamic optical rectification and delivery of active particles [PDF]
Soft Matter, 2019 Bacteria with light-activated motility are experimentally concentrated and depleted from target areas using moving light patterns.
Nick Koumakis +5 more
openaire +4 more sources
Enhanced Terahertz Generation From the Lithium Niobate Metasurface
Frontiers in Physics, 2022 The lithium niobate (LiNbO3) metasurface is an attractive platform for nonlinear frequency conversion due to its excellent nonlinearity, high damage threshold, and strong enhancement of the driving field.
Yanyun Tu +12 more
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High Power Laser Science and Engineering, 2023 The 4H-SiC crystal is found to have great potential in terahertz generation via nonlinear optical frequency conversion due to its extremely high optical damage threshold, wide transparent range, etc.
Fangjie Li +8 more
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Prism Couplers with Convex Output Surfaces for Nonlinear Cherenkov Terahertz Generation
Photonics, 2023 Sideways THz generation in Mg:LiNbO3 crystal is studied considering Si-prism-lens couplers with different output surface curvatures. A theoretical approach is developed for modeling the angular distributions of THz radiation power inside the crystal ...
Galiya Kh. Kitaeva +3 more
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Generation of high repetition rate THz radiation at the mill-watt-level via optical rectification in an enhancement cavity [PDF]
EPJ Web of Conferences, 2023 We propose an experimental method for the generation of coherent terahertz radiation in the spec-tral region between 0.2 THz and 2 THz, with a high repetition rate of nearly 100 MHz, and with an average power at the milliwatt level.
Suerra Edoardo +4 more
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Terahertz and Photoelectron Emission from Nanoporous Gold Films on Semiconductors
Nanomaterials, 2019 Efficient terahertz and photoelectron emission were observed from nano-porous gold (NPG) films deposited on an intrinsic gallium arsenide (GaAs) semiconductor substrate stimulated by femtosecond laser with pulse width of 60 fs.
Junyi Nan +5 more
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Photonics, 2022 Terahertz wave generation through the optical rectification of 780 nm femtosecond laser pulses in ZnGeP2 crystals has been studied. All of the possible interactions of types I and II were analyzed by modeling and experimentally.
Vladimir Voevodin +4 more
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