Results 81 to 90 of about 13,719,025 (270)
Near‐field plates and the near zone of metasurfaces [PDF]
Nanophotonics, 2020 Abstract A brief, tutorial account is given of the differences between the near and far regions of the electromagnetic field emphasizing the source‐dependent behavior of the former and the universal properties of the latter. Field patterns of near‐field plates, that is, metasurfaces used for sub‐wavelength applications, are discussed ...
openaire +4 more sources
Scanning of Optical Fields Using Near-Field Scanning Optical Microscopy [PDF]
, 2006 The Near-field scanning optical microscopy is a high-resolution diagnostics for the optical field characterization. In our experiments we focus on the optical field characterization of semiconductor laser diodes based on multiple quantum well structure ...
Daniel Kacik +6 more
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Exploring plasmonic coupling in hole-cap arrays
Beilstein Journal of Nanotechnology, 2015 The plasmonic coupling between gold caps and holes in thin films was investigated experimentally and through finite-difference time-domain (FDTD) calculations.
Thomas M. Schmidt +3 more
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Fast FRFT-Based Algorithm for 3-D LFM Source Localization With Uniform Circular Array
IEEE Access, 2018 Localization of linear frequency modulation (LFM) source based on combination of time- frequency analysis and a spatial spectrum estimation technique has received extensive research.
Xin Chen, Zhen Liu, Xizhang Wei
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Thermophotovoltaic energy conversion in far-to-near-field transition regime [PDF]
, 2021 Recent experimental studies on near-field thermophotovoltaic (TPV) energy conversion have mainly focused on enhancing performance via photon tunneling of evanescent waves.
Mikyung Lim (12424233) +5 more
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Near-field laser tweezers [PDF]
, 2005 After the experimental development of the near-field trapping technique is reviewed, a theoretical model for focused evanescent wave trapping is presented, showing a new mechanism for rotating a trapped particle in the focused doughnut evanescent ...
Min Gu (18943897)
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Quantitative Modeling of Near-Field Interactions in Terahertz Near-Field Microscopy
Applied Sciences, 2023 Terahertz scattering-scanning near-field optical microscopy (THz s-SNOM), combining the best features of terahertz technology and s-SNOM technology, has shown unique advantages in various applications.
Zhaomin Peng +3 more
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The sub-near-field structure of finite near-fields [PDF]
Bulletin of the Australian Mathematical Society, 1971 The sub-near-field structure of finite near-fields is analogous to the sub-field structure of finite fields. A finite near-field of order pln contains a unique sub-near-field of order pλ if and only if λ divides ln.
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Near-field thermophotovoltaics for efficient heat to electricity conversion at high power density
Nature Communications, 2021 Thermophotovoltaic approaches that take advantage of near-field evanescent modes are being actively explored due to their potential for high-power density and high-efficiency energy conversion.
Rohith Mittapally +8 more
semanticscholar +1 more source
Near-field radiative heat transfer in many-body systems [PDF]
Reviews of Modern Physics, 2020 Many-body physics aims to understand emergent properties of systems made of many interacting objects. This article reviews recent progress on the topic of radiative heat transfer in many-body systems consisting of thermal emitters interacting in the near-
Svend‐Age Biehs +5 more
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