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Recording of optical near fields in remote locations by near-field holography
Optics Letters, 2001We propose a method of near-field recording in a space that is quite apart from the original source (generator) of optical near fields. The method is based on the recently developed technique of near-field holography. Experiments based on our method have shown that near fields that originate from sub-diffraction-limit-sized objects can be stored in a ...
K Y, Kim, B, Lee
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Near-field ultrasound tomography
The Journal of the Acoustical Society of America, 2007In this paper, a near-field tomographic solution is introduced to solve the imaging problem of fluid objects assumed to be weakly heterogeneous (Born approximation) and excited by spherical waves. The solution to the forward problem is based on the Huygens-Fresnel principle which describes the scattered field as the result of the interference scheme of
Serge, Mensah, Emilie, Franceschini
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Terahertz spectroscopy in the near field
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007We observe a terahertz field enhancement in the junction between a sub-wavelength metal probe tip and a metallic substrate. We exploit this in the first observation of a metal-insulator transition using terahertz near-field techniques.
Zhan, Hui +7 more
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Resolution of near-field to near-field imaging with silver nanolayer
SPIE Proceedings, 2013Interest in plasmonic lenses dates back to the seminal paper of Pendry [Phys. Rev. Lett. 85, 3966 (2000)] who has shown that superresolution is possible due to imaging through a negative-refractive-index material. Experimental verifications of near-field to near-field imaging properties of a single Ag nanolayer have proven that a resolution reaching ...
Tomasz Stefaniuk +3 more
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Near fields of microstrip antennas
IEEE Transactions on Antennas and Propagation, 1995The paper presents an iterative method for the computation of the near fields of single layer microstrip patch antennas. A judicious combination of the advantages of the MPIE (mixed potential integral equation) method, the FFT algorithm and the biconjugate gradient leads to an efficient numerical solution.
Bokhari, S. A. +3 more
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Physical Review Letters, 1996
Near-field optical holography, i.e., a technique that allows one to record and reconstruct not only far- but also near-field components of optical fields, is conceptually formulated. A near-field hologram can be recorded with a reference wave, which is totally internally reflected by a surface with quasi-two-dimensional objects on it, and reconstructed
, Bozhevolnyi, , Vohnsen
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Near-field optical holography, i.e., a technique that allows one to record and reconstruct not only far- but also near-field components of optical fields, is conceptually formulated. A near-field hologram can be recorded with a reference wave, which is totally internally reflected by a surface with quasi-two-dimensional objects on it, and reconstructed
, Bozhevolnyi, , Vohnsen
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1995
The optical imaging of micro- and nanometric objects requires the detection of non-radiative field components confined at the vicinity of their surface. Since 1984, numerous experimental applications of this concept in Near Field Optics (NFO) have been demonstrated and a broad variety of Scanning Near Field Optical Microscopes (SNOM) have been ...
Dereux, A., Martin, O.J.F., Girard, C.
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The optical imaging of micro- and nanometric objects requires the detection of non-radiative field components confined at the vicinity of their surface. Since 1984, numerous experimental applications of this concept in Near Field Optics (NFO) have been demonstrated and a broad variety of Scanning Near Field Optical Microscopes (SNOM) have been ...
Dereux, A., Martin, O.J.F., Girard, C.
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Near-field diffractive elements
Optics Letters, 2005A novel near-field imaging system is proposed and simulated. It is seen that a significant improvement in performance in the presence of noise is possible without loss of resolution.
Daniel, Marks, P Scott, Carney
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Reduction of Truncation Error in Near-Field to Near-Field Transformation
31st European Microwave Conference, 2001, 2001A new technique to rapidly evaluate the near-field and the safety perimeter of a base station antenna is reported in this paper. It consists in the reconstruction of the near-field in a volume surrounding the antenna from a standard near-field measurement on a cylindrical surface.
Casavola, L. +5 more
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Polychromatic near-field ptychography
2016 International Conference on Image and Vision Computing New Zealand (IVCNZ), 2016Near-field X-ray ptychography has recently been experimentally shown to be able to recover a sample's complex valued transmission function from multiple near-field diffraction images, each with a lateral shift of the sample, in the monochromatic (single energy) case.
Richard Clare +2 more
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