نتایج جستجو برای: q factor
تعداد نتایج: 956049 فیلتر نتایج به سال:
In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded Qload of 1.83 × 106 is obtained. The MRRs packaged with fiber-to-fiber loss ~5 dB. notch depth 3 dB and ~137 pm FSR observed. These show great potential in optical communications as filters. Moreover, the devices suitable used monolithic in...
A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as coupler was integrated with racetrack resonator. Then, 40 mW electronic power applied on microheater arm of MZI, and maximal notch depth about 13.84 dB loaded Q factor 4.47 × 106 were obtained. The proposed MRR shows great potential in p...
in this article, some diagnostic systems and the preliminary results of the ir-t1** (iran-tokamak 1) are presented. different diagnostic methods, including an array of soft x-ray detectors, visible spectrometer, electron cyclotron emission detector and electromagnetic measurement systems have been used and the hard disruptive instability occurring in the ir-t1 plasma during an ohmic heating dis...
Objective(s): The aim of the present study was to evaluate the effect of Quercus brantii galls extract on the rat skin burn wound healing. Materials and Methods: Ethanol extract of the galls of Q. brantii was used to treat the induced burn wounds on the back of 32 Wistar rats divided into 4 groups. The groups were treated by placebo, 1%, 2% and 4% concentration gall extract gels for 14 days and...
Achieving high-Q-factor resonances allows dramatic enhancement of performance of many plasmonic devices. However, the excitation of high-Q-factor resonance, especially multiple high-Q-factor resonances, has been a big challenge in traditional metamaterials due to the ohmic and radiation losses. Here, we experimentally demonstrate simultaneous excitation of double extremely sharp resonances in a...
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