near field communication nfc

Beginning NFC near field communication with arduino, android, and phonegap 2014

... Create a new app called NfcReader: 40 | Chapter 3: Getting Started with PhoneGap and the PhoneGap -NFC Library $ cordova create ~/NfcReader com.example.nfcreader NfcReader $ cd ~/NfcReader $ cordova ... %userprofile%\NfcReader instead of ~/NfcReader Windows users should type /d ~/NfcReader %userprofile%\NfcReader instead of Installing the NFC Plug-In There are a number of changes needed to add NFC support ... This Book Chapter gives you an introduction to near field communication (NFC) by comparing it to radio frequency identification (RFID) Simply put, NFC is a superset of RFID It can most things short-range...

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Near field communication with android cookbook vitor subtil

Danh mục: Kĩ thuật Viễn thông

... Near Field Communication withAndroid Cookbook TableofContents Near Field Communication withAndroidCookbook Credits AbouttheAuthor ... Jokingwithafriend Gettingready Howtodoit… Howitworks… Index Near Field Communication withAndroid Cookbook Near Field Communication withAndroid Cookbook Copyright©2014PacktPublishing ... pathnames,dummyURLs,userinput,andTwitterhandlesareshownasfollows: “nfcbook.ch1.example1.” Ablockofcodeissetasfollows: NfcAdapternfcAdapter=NfcAdapter.getDefaultAdapter(this); if(nfcAdapter!=null&&nfcAdapter.isEnabled()){...

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focussed ion beam machined cantilever aperture probes for near field optical imaging

Danh mục: Vật lý

... & Chang, C.H (1992) Near- field magneto-optics and high density data storage Appl Phys Lett 61, 142–144 Betzig, E & Chichester, R.J (1993) Single molecules observed by near- field optical microscopy ... scanning near- field optical microscopy Appl Phys Lett 79, 683–685 Choi, S.S., Jung, M.Y., Kim, D.W., Kim, J.W & Boo, J.H (2003) Fabrication of subwavelength-size aperture for a near- field optical ... Lehrer, Ch & Frey, L (1999) Nano-slit probes for near- field optical microscopy fabricated by focused ion beams J Microsc 194, 335–339 Dunn, R.C (1999) Near- field scanning optical microscopy Chem Rev...

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high precision dynamic alignment and gap control for optical near field nanolithography

Danh mục: Vật lý

... High precision dynamic alignment and gap control for optical near- field nanolithography Xiaolei Wen School of Mechanical Engineering and Birck Nanotechnology Center, ... (ISPI) to control a gap distance of the order of nanometers for parallel optical near- ﬁeld nanolithography In optical near eld nanolithography, the distance between the optical mask and the substrate ... of nanoscience and nanotechnology Among various nanofabrication methods, optical near- ﬁeld nanolithography using near- ﬁeld optical focusing elements has great potentials due to its low-cost and...

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improving near field confinement of a bowtie aperture using surface plasmon polaritons

Danh mục: Vật lý

... periodicity The slits are illuminated by a 400-nm-wavelength linearly polarized light of the interaction between SPPs and a diverging near- ﬁeld, and facilitates the design of the computationally ... method for reducing the near- ﬁeld divergence of the subdiffraction-limited spot created by a bowtie aperture, using SPPs reﬂected from grooves surrounding the bowtie aperture The near- ﬁeld conﬁnement ... grooves normalized to that of the single slit as a function of groove periodicity The periodicities near 200 and 400 nm show signiﬁcant FWHM reduction as much as 40% The reduced FWHM repeats every...

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three dimensional mapping of optical near field of a nanoscale bowtie antenna

Danh mục: Vật lý

... Weiner, “Combined shear force and near field scanning optical microscopy,” Appl Phys Lett 60(20), 2484 (1992) 13 R Toledo-Crow, P Yang, Y Chen, and M Vaez Iravani, Near field differential scanning ... sample distance control for near field optical microscopes,” Appl Phys Lett 66(14), 1842 (1995) 15 D Tsai, and Y Lu, “Tapping-mode tuning fork force sensing for near- field scanning optical microscopy,” ... “Facts and artifacts in near- field optical microscopy,” J Appl Phys 81(6), 2492 (1997) 17 C Jordan, S Stranick, L Richter, and R Cavanagh, “Removing optical artifacts in near- field scanning optical...

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high transmission nanoscale bowtie shaped aperture probe for near field

Danh mục: Vật lý

... silicon nitride cantilevered atomic force microscopy ͑AFM͒ probes, which had a pyramidal-shaped tip near the end of cantilever On the tip of the probe, a platform was created by FIB side slicing Then ... ͑Color online͒ NSOM images obtained by ͑a͒ bowtie aperture probe and ͑b͒ regular aperture probe ͑c͒ Near- ﬁeld line proﬁles of the two NSOM images, and the solid line and dashed line represent bowtie ... aperture probe using the same intensity scale It was found that the bowtie aperture probe provides near- ﬁeld measurement counts seven times higher than the regular aperture probe Line scans of the...

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nanoscale ridge aperture as near field transducer for heat assisted magnetic recording

Danh mục: Vật lý

... “Enhanced optical near field from a bowtie aperture,” Appl Phys Lett 88, 153110 (2006) 15 L Wang and X Xu, “High transmission nanoscale bowtieshaped aperture probe for near- field optical imaging,” ... Challener, and E C Gage, Near field optical recording with a planar solid immersion mirror,” Appl Phys Lett 87, 151105 (2005) T Rausch, C Mihalcea, K Pelhos, D Karns, K Mountfield, Y A Kubota, X ... aperture Silver is chosen since it has the most suitable properties for obtaining high intensity near- field spot The size of the optical spot generated by the bowtie aperture is almost entirely dictated...

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three dimensional mapping of optical near field of a nanoscale bowtie antenna

Danh mục: Vật lý

... Weiner, “Combined shear force and near field scanning optical microscopy,” Appl Phys Lett 60(20), 2484 (1992) 13 R Toledo-Crow, P Yang, Y Chen, and M Vaez Iravani, Near field differential scanning ... sample distance control for near field optical microscopes,” Appl Phys Lett 66(14), 1842 (1995) 15 D Tsai, and Y Lu, “Tapping-mode tuning fork force sensing for near- field scanning optical microscopy,” ... “Facts and artifacts in near- field optical microscopy,” J Appl Phys 81(6), 2492 (1997) 17 C Jordan, S Stranick, L Richter, and R Cavanagh, “Removing optical artifacts in near- field scanning optical...

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plasmonic effects in near field optical

Danh mục: Vật lý

... understood In this work, we investigate the near- ﬁeld optical transmission properties of bowtie apertures made in gold and chromium ﬁlms In particular, the optical near ﬁelds from the bowtie apertures ... the optical near ﬁeld transmitted through these apertures Our NSOM is operated in the transmission–collection mode As schematized in Fig 2, the aperture sample is illuminated by a linearly polarized ... elsewhere JIN et al Plasmonic effects in near- ﬁeld optical transmission enhancement through a single bowtie-shaped aperture FIGURE Schematic view of near- ﬁeld scanning optical microscopy (NSOM)...

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Báo cáo hóa học: " Research Article An Entropy-Based Propagation Speed Estimation Method for Near-Field Subsurface Radar Imaging" ppt

Danh mục: Hóa học - Dầu khí

... results in far-ﬁeld SR imaging settings In the last decade, SR has been used for a series of novel near- ﬁeld imaging scenarios, such as Breast Microwave Radar (BMR) and Microwave Wood Inspection ... scenarios This paper proposes a novel technique to accurately determine the propagation speed in near- ﬁeld SR scenarios This technique reconstructs a given dataset using diﬀerent propagation speed ... technique exhibits a number of improvements over standard propagation speed estimation methods for near- ﬁeld imaging, including lower execution time and the ability to generate accurate results using...

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Báo cáo hóa học: " Research Article 4D Near-Field Source Localization Using Cumulant" ppt

Danh mục: Báo cáo khoa học

... estimated, the 3D near eld source localization problem actually becomes a fourdimensional (4D) one Hence it is necessary to develop a joint 4D parameter estimation algorithm for near- ﬁeld sources ... product) with typical element xi, j,k and the F-component trilinear decomposition F xi, j,k = ri, f u j, f wk, f f =1 (3) Junli Liang et al lth near- ﬁeld source z rl αl (0, −1) ··· (−N + 1, 0) (−N + ... matrix R is kR if and only if arbitrary kR columns of R are linearly independent and either R has kR columns or R contains a set of kR + linearly dependent columns Note that Kruskal rank is always...

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Báo cáo hóa học: " Frequency-Domain Blind Source Separation of Many Speech Signals Using Near-Field and Far-Field Models" docx

Danh mục: Báo cáo khoa học

... 3.5 Estimation of sphere with near- ﬁeld model The interpretation of the ICA solution with a near- ﬁeld model yields other geometric information When we adopt the near- ﬁeld model, including the ... ) (17) Ryo Mukai et al Nearly vertical to sensor pair axis Sources S1 S2 180 Estimated DOA (degree) 180 Estimated DOA (degree) Sensors 90 Sources S1 S2 Sensors 90 0 Nearly horizontal to sensor ... S Makino, “Polar coordinate based nonlinear function for frequency-domain blind source separation,” IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol...

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Báo cáo hóa học: " A New Algorithm for Joint Range-DOA-Frequency Estimation of Near-Field Sources" docx

Danh mục: Báo cáo khoa học

... Joint Estimation for 3D Parameters of Near- Field Sources where d is the interelement spacing of the uniform linear array, while λi , ri , and θi are the wavelength, range, ... for localization of near- ﬁeld sources,” IEEE Trans Signal Processing, vol 46, no 3, pp 709–719, 1998 E Grosicki and K Abed-Meraim, “A weighted linear prediction method for near- ﬁeld source localization,” ... (Nx − 1) 2Nx − Nx −1 m angle m=1 ui (m + 1) (29) ui (1) Joint Estimation for 3D Parameters of Near- Field Sources 389 ˆ ˆ Once θi and φi are available, the range ri can be estimated using (4),...

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Mapping WGMs of erbium doped glass microsphere using near-field optical probe

Danh mục: Kỹ thuật

... GE H F-XC A N GE N c Chapter 2: Coupling Microsphere WGMs based on Nearfield Optics 2.1 Introduction of Nearfield optics Near- field optics has developed very rapidly from around the middles 1980s ... area of the near field is proportional to the size of the microsphere, and that the field momentum is locally modified by the interference between the near field and the incident field and that ... Also, It could be seen the relationship of Evanescent -field with Near- field optics and the scope of near- field optics in the modern optical telecommunication depicted hereinafter Ho Duc Vinh 22 K10N...

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Far field and near field optical properties of planar plasmonic oligomers

Danh mục: Cao đẳng - Đại học

... oligomers: Energy localization 90 5.1 Near- field localization 5.2 Influence of geometry on the near- field energy 5.3 Influence of defects on the near- field energy 5.4 Near- field energy enhancement by rotor-shaped ... better candidates to enhance the exhibited near- field energy among the gaps significantly Such structures allow achieving more precise localization of the near- field energy One should note here that ... resonances is located at the same spectral position as the FR dip in the dark field case [195] In this thesis, far -field and near- field optical properties of designed and fabricated novel oligomers so...

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Near field coherent anti stokes raman scattering (CARS) microscopy for bioimaging

Danh mục: Y - Dược

... Schematic of near- field LP-CARS or RP-CARS field generation 47 Comparison of near- field CARS intensity distributions between RP- and LP-CARS generated from pure water .48 Near- field intensity ... the near- field region, including near- field CARS generation from two adjacent scatterers and the effects of scatterers’ sizes on near- field CARS under tightly focused radially and linearly ... studied the near- field effects of nanoparticle sizes, orientations, polarization of excitation light on near- field CARS imaging using FDTD technique We have developed a radially polarized near- field...

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Optical near field enhancement by micro nano particles for nanotechnology applications

Danh mục: Cao đẳng - Đại học

... Introduction Chapter Introduction 1.1 Introduction to near- field optics In general, a near- field is referred to a region with distance in micro/nano scales Nearfield optics (NFO) deals with phenomena involving ... bio-virus The near field enhancement around such sub-micron particles is of immediate relevance to near- field optics microscopes [18] or, to some extent, pointed tips [19] In the near field, for ... in sub-50 nm metallic nanoparticles near- field optics is strongly influenced by the development of scanning near- field optical microscopy, also called nearfield scanning optical microscopy This...

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Scanning near field photon emission microscopy

Danh mục: Cao đẳng - Đại học

... a nanometric probe placed into the near- field of the emission source The near- field is scattered by the probe and collected in the far -field Different near- field probe designs are available but ... of near- field optical detection as a means to enhance the optical lateral resolution below 100 nm The origin of the near- field optical interaction and the critical parameters of the near- field ... performance of existing near- field optical probes are compared ii Chapter describes the actual SNPEM set-up with a particular focus on the nearfield condition The near- field condition demands...

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Near field UHF RFID reader antenna design

Danh mục: Cao đẳng - Đại học

... REVIEW 2.1 Antenna Field Regions 6 2.1.1 Reactive Near- field Region 2.1.2 Radiating Near- field Region 2.1.3 Far -field Region 2.2 Operation in Near- field RFID Systems 2.3 HF and Near- field UHF RFID ... loop antenna, the magnetic field dominates in the near- field zone For a dipole antenna, the electric field dominates the near field zone The dominant field in the near- field zone is used as the ... 10 2.4 Overview of Near- field UHF RFID Systems 12 ii 2.5 Near- field UHF RFID Reader Antenna 13 2.5.1 Design Considerations of Near- field UHF RFID Reader Antenna 13 2.5.2 Near- field UHF RFID Reader...

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