Diffraction

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a screen by diffraction from a square aperture]] Diffraction refers to various phenomena which occur when a wave encounters an obstacle. Italian scientist Francesco Maria Grimaldi coined the word "diffraction" and was the first to record accurate observations of the phenomenon in 1665. (Wikipedia.org)






Conferences related to Diffraction

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2016 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting

This is the annual symposium for the IEEE Antennas and Propagation Society, and it is joint with the US National Committee of URSI's Radio Science Meeting.


2013 13th Mediterranean Microwave Symposium (MMS)

2013 MMS will include distinguished keynote speakers, parallel oral presentations and poster sessions. Topics cover state-of-the art as well as current progress and recent developments in several emerging topics related to RF, microwave engineering and applications.

  • 2011 Mediterranean Microwave Symposium (MMS)

    MMS 2011 will provide an international forum for reporting progress and recent developments in RF and microwave and in many other related topics theory and applications . MMS'2011 will consist of technical and invited sessions and keynote and tutorial sessions covering the state-of-the art of several hot topics in RF and microwave engineering and technology.

  • 2010 10th Mediterranean Microwave Symposium (MMS)

    MMS2010 will provide an international forum for reporting progress and recent developments in RF and microwave theory and applications. Suggested topics are listed below, but consideration will be given to papers on other subjects.

  • 2009 Mediterranean Microwave Symposium (MMS)

    MMS 2005 will provide an international forum for reporting progress and recent developments in RF and microwave theory and applications. Suggested topics are listed below, but consideration will be given to papers on other subjects. Suggested Topics : 1. Propagation, Scattering and diffraction 2. Microwave and Millimeter-Wave Circuits. 3. Photonics, non linear optics and devices 4. Microwaves and millimeterwave devices CAD 5. RF and Wireless Technology and Applications 6. Interconnects 7. W


2013 XVIIIth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)

Theoretical aspects of electrodynamicsWaveguide and photonic crystal structuresScattering and diffractionInverse problems and synthesisPropagation in complex mediaAntennas and antenna arraysNumerical methods in electrodynamicsAcoustics: theory and applications


Days on Diffraction 2013 (DD)

Mathematical aspects of wave propagation, Asymptotic techniques, Scattering and diffraction, Electromagnetics, Sound propagation and vibration, Elastic waves and seismology, Nonlinear waves, Microwave and quantum waveguides, Inverse problems, Numerical approaches, Non-stationary phenomena


2010 URSI International Symposium on Electromagnetic Theory (EMTS 2010)

all aspects of electromagnetic theory and its applications



Periodicals related to Diffraction

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Device and Materials Reliability, IEEE Transactions on

Provides leading edge information that is critical to the creation of reliable electronic devices and materials, and a focus for interdisciplinary communication in the state of the art of reliability of electronic devices, and the materials used in their manufacture. It focuses on the reliability of electronic, optical, and magnetic devices, and microsystems; the materials and processes used in the ...


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Most published Xplore authors for Diffraction

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Xplore Articles related to Diffraction

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Multidimensional quantum walks: Diabolical points, optical wave-like propagation, and multipartite entanglement

[{u'author_order': 1, u'affiliation': u"Dept. d'Opt., Univ. de Valencia, Burjassot, Spain", u'full_name': u'G. J. de Valc\xe1rcel'}, {u'author_order': 2, u'affiliation': u"Centre for Theor., Atomic, Mol. & Opt. Phys., Queen's Univ., Belfast, UK", u'full_name': u'C. Di Franco'}, {u'author_order': 3, u'affiliation': u'Dept. de Fis. Teor., Univ. de Valencia, Burjassot, Spain', u'full_name': u'M. Hinarejos'}, {u'author_order': 4, u'affiliation': u'Dept. de Fis. Teor., Univ. de Valencia, Burjassot, Spain', u'full_name': u'A. P\xe9rez'}, {u'author_order': 5, u'affiliation': u"Dept. d'Opt., Univ. de Valencia, Burjassot, Spain", u'full_name': u'E. Rold\xe1n'}, {u'author_order': 6, u'affiliation': u'Inst. de Fis., Univ. de la Republica, Montevideo, Uruguay', u'full_name': u'A. Romanelli'}, {u'author_order': 7, u'affiliation': u"Dept. d'Opt., Univ. de Valencia, Burjassot, Spain", u'full_name': u'F. Silva'}] 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, None

Quantum walks (QWs) are important for quantum information science, but are becoming also interesting for other fields of research as this simple quantum diffusion model finds analogues in diverse physical systems, optical ones in particular. The experimental capabilities regarding QWs have remarkably increased along recent years and several aspects of QWs are now open to experimental research, multidimensional QWs in ...


Design and fabrication of a crossed grating with multiple zero-reference marks for surface encoders

[{u'author_order': 1, u'affiliation': u'Department of Precision Instrument, Tsinghua University, Beijing, China', u'full_name': u'Xinyu Mao'}, {u'author_order': 2, u'affiliation': u'Department of Precision Instrument, Tsinghua University, Beijing, China', u'full_name': u'Lijiang Zeng'}] 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), None

We propose a new crossed grating with multiple zero-reference marks in the area of crossed grating structures. The fabrication process and the performance tests are introduced in this paper. The experiment results show that the diffraction efficiency of the crossed grating only reduces from 14% to 12% on account of the zero-reference marks. The repeated positioning accuracy of the zero-reference ...


Non-scanning three-dimensional imaging using two-dimensional spectroscopy and spectral interferometry with a chirped frequency comb

[{u'author_order': 1, u'affiliation': u'The University of Electro-Communications (UEC)', u'full_name': u'Takashi Kato'}, {u'author_order': 2, u'affiliation': u'The University of Electro-Communications (UEC)', u'full_name': u'Megumi Uchida'}, {u'author_order': 3, u'affiliation': u'The University of Electro-Communications (UEC)', u'full_name': u'Yurina Tanaka'}, {u'author_order': 4, u'affiliation': u'The University of Electro-Communications (UEC)', u'full_name': u'Kaoru Minoshima'}] 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), None

Non-scanning three-dimensional imaging with a chirped-frequency comb is demonstrated using two-dimensional (2D) pulse-to-pulse spectral interferometry and 2D spectroscopy. The profile of a structure of three gauge blocks was measured with μm-level uncertainty.


Physical properties of RT-LPCVD and LPCVD polysilicon thin films: application to emitter solar cell

[{u'author_order': 1, u'affiliation': u'Inst. Nat. des Sci. Appliquees, Villeurbanne, France', u'full_name': u'M. Lemiti'}, {u'author_order': 2, u'affiliation': u'Inst. Nat. des Sci. Appliquees, Villeurbanne, France', u'full_name': u'B. Semmache'}, {u'author_order': 3, u'full_name': u'Q. N. Le'}, {u'author_order': 4, u'full_name': u'D. Barbier'}, {u'author_order': 5, u'full_name': u'A. Laugier'}] Proceedings of 1994 IEEE 1st World Conference on Photovoltaic Energy Conversion - WCPEC (A Joint Conference of PVSC, PVSEC and PSEC), None

This investigation was implemented in the framework of a novel all-low thermal budget polysilicon emitter solar cells fabrication technology. A comparative study of structural and electrical properties of thin silicon layers deposited by silane pyrolysis in a classical hot-wall furnace (LPCVD) and a cold-wall RTP reactor (RT-LPCVD) has been made. Deposition conditions and rapid thermal anneals were varied in order ...


Interference photolithography with metamaterials

[{u'author_order': 1, u'affiliation': u'State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences P. O. box 350, Chengdu 610209, China', u'full_name': u'Ting Xu'}, {u'author_order': 2, u'affiliation': u'State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences P. O. box 350, Chengdu 610209, China', u'full_name': u'Changtao Wang'}, {u'author_order': 3, u'affiliation': u'State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences P. O. box 350, Chengdu 610209, China', u'full_name': u'Xiangang Luo'}] 2008 IEEE PhotonicsGlobal@Singapore, None

We present that a sub-diffraction-limited photolithography technique can be theoretically achieved by affiliating an anisotropic metamaterial under the conventional photolithographic mask. Based on the special dispersion characteristics of the metamaterial, only the enhanced evanescent waves with high spatial frequencies can transmit through the metamaterial and engage in the lithography process. Rigorous coupled wave analysis shows that with 442 nm exposure ...


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Educational Resources on Diffraction

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eLearning

No eLearning Articles are currently tagged "Diffraction"

IEEE-USA E-Books

  • Digital Nano‐Optics

    This chapter contains sections titled: The Concept of 'Nano' in Optics Sub‐wavelength Gratings Modeling Sub‐wavelength Gratings Engineering Effective Medium Optical Elements Form Birefringence Materials Guided Mode Resonance Gratings Surface Plasmonics Photonic Crystals Optical Metamaterials

  • Digital Optics Modeling Techniques

    This chapter contains sections titled: Tools Based on Ray Tracing Scalar Diffraction Based Propagators Beam Propagation Modeling (BPM) Methods Nonparaxial Diffraction Regime Issues Rigorous Electromagnetic Modeling Techniques Digital Optics Design and Modeling Tools Available Today Practical Paraxial Numeric Modeling Examples

  • Wave Propagation Over Flat Earth

    This chapter discusses how the simplest propagation scenario used in analytical modeling is the flat Earth with PEC surface under line‐source excitation. On the single knife edge problem, the ray summation approach is based on the construction of four different rays, related reflection, and diffraction coefficients using Fresnel integral. The parameters of the Fresnel integrals are derived by using the image source and receiver for the reflected waves. The 2D propagation scenario is completed by choosing the appropriate transverse and longitudinal BC. This problem has analytical exact solutions in terms of Airy functions for the range independent vertical refractive index. The specification of the number of numerical integration steps for the calculation of modal excitation coefficients is crucial. The code must adopt the number of integration steps automatically as the mode index increases.

  • Generic Channel Models

    This chapter introduces some generic models that adopt different kinds of parameter to characterize the behavior of individual components in a channel. These models are proposed from different perspectives, such as specular and dispersive, time invariant and variant, as well as deterministic and stochastic path components. They can be used in different contexts for channel estimation. The chapter also introduces a bidirection¿¿¿delay¿¿¿Doppler¿¿¿dual¿¿¿polarization specular path¿¿¿model, in which the parameters describing a specular path include its delay, DoA, DoD, Doppler frequency and polarization ¿¿¿e Generic Channel Models. It discusses a specular path model, where the received signal is assumed to be the superposition of the contributions of multiple waves propagating along uncorrelated paths. The chapter also talks about the signal model for multiple¿¿¿input multiple¿¿¿output (MIMO) channel sounding and states the assumptions for the properties of dispersion of the propagation channel in bidirection, delay, Doppler frequency, and polarization.

  • Shadowing Effects

    This chapter contains sections titled: Introduction Projects Summary References Software Supplied

  • Digital Optics Fabrication Techniques

    This chapter contains sections titled: Holographic Origination Diamond Tool Machining Photo‐reduction Microlithographic Fabrication of Digital Optics Micro‐refractive Element Fabrication Techniques Direct Writing Techniques Gray‐scale Optical Lithography Front/Back Side Wafer Alignments and Wafer Stacks A Summary of Fabrication Techniques

  • Design for Manufacturing

    This chapter contains sections titled: The Lithographic Challenge Software Solutions: Reticle Enhancement Techniques Hardware Solutions Process Solutions

  • Ray-based and Wavefront-based 3D Representations for Holographic Displays

    A three-dimensional (3D) holography display is capable of reproducing extremely high-quality 3D images by wavefront reconstruction, and its advantage against ray-based 3D display is the capability to reproduce deep 3D scenes at high resolution. One of the important issue in holographic display is the calculation of holograms from 3D data, because it requires wavefront- based rendering that is much more complicated than conventional ray-based computer graphics. Although ray-based rendering techniques have been applied to hologram computation, they cause reduction of resolution as in the case of ray-based displays. This chapter addresses a technology that converts 3D data represented by light-rays into wavefront data and vice versa at ray-sampling (RS) planes defined near the objects to be displayed, and a new method is proposed for the computation of hologram using a RS plane. The proposed method enables to employ the advanced rendering techniques for occlusion processing, surface shading, specular or glossy surfaces, and translucent objects in the computation of holograms, without loss of the advantage of holographic displays. A scanning vertical camera array system is presented for capturing high-density light-field information, which are applied to computational holography and holographic prints. Experimental results demonstrate that the proposed ray-wavefront conversion technique allows the realistic display of deep 3D images at high resolution.

  • Focusing of Multiple Acoustic Edge Waves Diffracted at a Convex Body of Revolution with a Flat Base

    This chapter focuses on multiple acoustic edge waves diffracted at a convex body of revolution with a flat base. It analyses the field generated by the total scattering sources. The first-order (primary) edge waves excited directly by the incident wave are determined by the integral expression applied to the circular edge. The total scattered field on the focal line also includes the reflected rays in front of the object (z < 0) and the shadow radiation behind the object (z > 0). This approximation for the scattered field actually represents an incomplete asymptotic expansion, because it includes only the first term in the individual asymptotic expansion for each multiple edge wave. The higher-order edge waves arise due to the _slope diffraction_ of waves running along the flat base of the scattering object.

  • High Frequency Asymptotics: The 2D Wedge Diffraction Problem

    In this chapter, high frequency asymptotics (HFA) techniques are reviewed through a classical, canonical problem: EM wave scattering from a wedge shaped object with perfectly electrical conductor (PEC) boundaries. A MATLAB-based virtual diffraction tool WedgeGUI, using analytical exact as well as well- known HFA techniques, is also introduced. Mathematical equations of different models are included for both line source (LS) and plane wave (PW) illuminations. The PW models presented are exact by series summation, PO, PTD, UTD, and PE models.



Standards related to Diffraction

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Jobs related to Diffraction

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