A multiple scattering technique is developed for describing the physics of intersecting waveguides. In this picture two waveguides interact by fields each other in a self-consistent manner. The development such an analysis motivated fact that previous theory, which based on idea symmetric and antisymmetric modes composite waveguide structure, has limited validity. reveals new features geometry with important device applications integrated optics.

In this endeavor, a new multiple-input-multiple-output antenna with sharp rejection at wireless local area network (WLAN) band is designed and practically examined for portable ultra-wideband applications. The intended diversity possess small size of 15 mm × 26 two inverted L-strip are loaded over the conventional rectangular patch to form protrudent-shaped radiator that acts as radiating element. band-rejection capability WLAN established by incising L-shaped slits decoupling structure....

Composite materials have attracted significant attention owing to their effective application in producing high-efficiency organic light emitting diodes (OLEDs). Hole transport layers are important and play a noteworthy character improving the efficiency stability of OLED. In this work, we investigated doping effect copper iodide (CuI) into (II) phthalocyanine (CuPC) hole layer on performance The composite was employed solution processed OLED consisting 4,4′-Bis(N-carbazolyl)-1,1′-biphenyl...

We report fast 2/spl times/2 Mach-Zehnder optical space switches by using quantum confined Stark effect in InGaAsP-InP multiquantum-well structures that are ultracompact, require low voltages, and employ a simple RF drive with RC time-constant limited lumped electrodes. Cut-off frequencies excess of 10 GHz observed suitable for variety switching applications.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

In this study, a novel design and packaging of miniaturised planar microstrip antenna with circular polarisation (CP) that is suitable for 2.45‐GHz radio‐frequency identification (RFID) applications proposed. The realised by truncating the corners left to right diagonal 76% miniaturisation achieved incorporating two slots in each four directions one at centre square‐shaped radiator. This type method known literature but combining CP radiation approach. radiator designed has compact size 19.6...

Recently, a novel optical modulator heterostructure has been introduced based on voltage controlled electron transfer from reservoir to closely spaced quantum well. It proven exhibit large absorptive and refractive modulation at high speed low power dissipation. In order achieve monolithic integration with the existing quality InGaAsP/InP lasers for bit-rate systems, it is crucial implement such devices within same material system. this letter, we demonstrate first time, electron-transfer...

Organic light emitting diodes (OLEDs) are emerging key technologies for full-color flat-panel displays and high-quality solid-state lighting sources. To achieve highly efficient OLED devices, the hole injection/transport layer is a factor. Solution-processed transition metal oxides have promising potential, due to their balanced charge injection carrier mobility. Herein, we demonstrated solution-processed yellow phosphorescent with tungsten trioxide (WO3) hole-injection/hole-transport...

Abstract We report solution-processed nanocrystalline copper-phthalocyanine (CuPc) as a hole-injection/transport layer used to maintain efficient hole injection and transport into the emissive layer. The efficacies efficiencies of devices with CuPc hole-transport control device fabricated poly (3,4-ethylene dioxythiophene)-poly(styrene-sulfonate) (PEDOT:PSS) are investigated. As result, organic light-emitting diode (OLED) employing exhibits maximum such power efficiency (PE max ) 46.7 lmW −1...

Previous theory of intersecting waveguides (optical) based on the idea composite modes is unable to explain a variety important experimental observations. We have developed systematic which in good agreement with experiment. In addition, our points out novel physical effects associated this geometry. It found that crosstalk vanishes for an intersection angle twice rays individual waveguides. A sharply peaked radiation pattern from region two both predicted and observed first time.

Developing complex nature of patterns &amp; concurrency Integrated Circuits has made conventional coordinated test- benches an unworkable answer for testing. Nowadays, testing as a word been substituted with check. Confirmation specialists need to guarantee what goes the plant assembling is exact representation specification configuration. Verification maximum time consuming stage in whole design process, thus it become necessity minimize required encounter confirmation necessities. The...

Summary form only given. In conclusion, we performed a 40 Gbit/s, 100-km transmission experiment including demultiplexing from Gbit/s to 10 by using mode-locked semiconductor laser simultaneously as pulse source for the demultiplexer, all-optical clock recovery, and detector synchronize BER test set.

A compact dual band fan shaped antenna with dimension of 40×34×4.8 mm3 is proposed for broadband application in 20- 40 GHz and 50-70 band. Design techniques based on modified Vivaldi Antenna, tapered strip line feed defective ground are used to design the antenna. These help acquire enhanced bandwidth overall a small shape Antenna parameters simulated using CST Microwave studio. The prototype fabricated FR 04 material keep fabrication cost low, however it expected that same substrate like RT...

In India, an estimated 50% of tuberculosis (TB) patients are diagnosed and managed by private providers (PPs). However, there is limited information on treatment outcomes among those treated PPs largely because a lack systems for patient follow-up documentation the outcomes. Tuberculosis Health Action Learning Initiative (THALI) project implemented in six districts West Bengal, supported managing TB systematically documented such patients. This provided us opportunity to describe assess...

Abstract In this article, an innovative design of a broadband circularly polarized compact planar antenna for RFID (radio frequency identification) receivers is presented. The suggested structure used the concept slots loaded parasitic element printed underneath coplanar waveguide-fed radiator to achieve (CP) radiation and size reduction. A with F-slot L-slot, window-type slotted ground plane was resonance at 2.45 GHz right-handed handheld reader application. Experimental results confirmed...

A self-consistent finite difference method for the simulation of quantum well electron transfer structures is developed and applied to optimize InGaAsP/InP/InAlAs fast optical switching devices. Simultaneous solution Poisson’s equation, continuity Schrödinger’s equation on a discretized mesh yields accurate which may be arbitrary layer needs no artificial assumptions like abrupt space charge layers. Because exact treatment distribution leakage current gives new insight into performance...

Interactions between guided and radiation modes are studied experimentally in Ti:LiNbO3 single-mode, single-Δn intersecting waveguides with small angles. These measurements, which cannot be interpreted terms of any previous theory for waveguides, can understood a recently developed multiple scattering analysis. Furthermore, it is found that the losses optical switches crossovers dramatically reduced by fractional doping intersection region.

Abstract This paper presents a CPW‐fed novel structure of dual‐band and dual‐polarized planar antenna consisting protrudent‐shaped radiator spiral‐ cross‐shaped strips loaded ground plane for GPS L1 SDARS band applications. The right hand circular polarization at left‐hand bands were excited by attaching cross‐ spiral‐shaped to the plane. total volume presented is only 67.5 × 65.5 1.6 mm 3 , rendering it very useful surveying geo‐informatics proposed displays center frequencies 1.57542 GHz...