Analysis of the Methods of Discrete and Smooth Frequency Tuning in Gyrotrons for Spectroscopy, on the Example of a Generator Operated in the 0.20–0.27 THz Frequency Range
Sign Up to like & getrecommendations! Published in 2018 at "Radiophysics and Quantum Electronics"
DOI: 10.1007/s11141-018-9905-4
Abstract: We consider the main features of a low-power frequency-tunable gyrotron with an oversized cavity, which is designed for the purposes of nuclear magnetic resonance spectroscopy and other applications and operates in the 0.20–0.27 frequency range… read more here.
Keywords: frequency range; frequency; smooth frequency; spectroscopy ... See more keywords
Laser-Induced Frequency Tuning of Fourier-Limited Single-Molecule Emitters.
Sign Up to like & getrecommendations! Published in 2020 at "ACS nano"
DOI: 10.1021/acsnano.0c05620
Abstract: The local interaction of charges and light in organic solids is the basis of distinct and fundamental effects. We here observe, at the single molecule scale, how a focused laser beam can locally shift by… read more here.
Keywords: molecule; single molecule; laser induced; induced frequency ... See more keywords
Simultaneous Multifrequency (SiMFy) Stimulus: A Novel and Reliable Stimulus for Frequency Tuning of Ocular Vestibular-Evoked Myogenic Potentials.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Academy of Audiology"
DOI: 10.1055/s-0042-1744488
Abstract: BACKGROUND Frequency tuning of ocular vestibular evoked myogenic potential (oVEMP) refers to the frequency of tone burst that produces the largest amplitude oVEMP. There is an ever-growing pool of published studies that found the frequency… read more here.
Keywords: tuning ocular; frequency tuning; ocular vestibular; stimulus ... See more keywords
Intrinsic frequency Tuning of terahertz Quantum-cascade lasers
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5024480
Abstract: We have studied the intrinsic frequency tuning of several terahertz (THz) quantum-cascade lasers (QCLs) based on a hybrid design. With increasing driving current, most QCLs exhibit either a redshift or a blueshift, while some QCLs… read more here.
Keywords: tuning terahertz; cascade lasers; intrinsic frequency; quantum cascade ... See more keywords
Design and analysis of Minkowski fractal antenna for wideband THz frequency tuning/multiband operation in a MIMO antenna system
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Applied Physics"
DOI: 10.1063/5.0142554
Abstract: The proposed Minkowski fractal antenna design achieves wideband and continuous frequency tuning in a multiple-input and multiple-output (MIMO) antenna system. By manipulating the fractal geometry of the unit antenna element, the resonance frequency of the… read more here.
Keywords: frequency tuning; minkowski fractal; fractal antenna; frequency ... See more keywords
Air-Conducted Vestibular Evoked Myogenic Potential Testing in Children, Adolescents, and Young Adults: Thresholds, Frequency Tuning, and Effects of Sound Exposure
Sign Up to like & getrecommendations! Published in 2019 at "Ear and Hearing"
DOI: 10.1097/aud.0000000000000607
Abstract: Objectives: Pediatric vestibular evaluations incorporate cervical and ocular vestibular evoked myogenic potential (c- and oVEMP, respectively) testing; however, in children, c- and oVEMP thresholds have been minimally investigated and frequency tuning is unknown. Children are… read more here.
Keywords: frequency tuning; young adults; spl; vemp ... See more keywords
A Horst-Type Power Divider With Wide Frequency Tuning Range Using Varactors
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2018.2889222
Abstract: This paper presents a novel power divider with a wide frequency tuning range. In our previous work, a pair of capacitors were connected in parallel with the front transmission lines of a Trantanella-type power divider… read more here.
Keywords: power divider; frequency tuning; tuning range; power ... See more keywords
Communication-Less Receiver-Side Resonant Frequency Tuning for Magnetically Coupled Wireless Power Transfer Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3251987
Abstract: Compensating for deviations in the resonant frequency is crucial in magnetic resonance coupling wireless power transfer (WPT) systems. Thus, this study proposes a communication-less receiver-side resonant frequency-tuning scheme that compensates for the reactance in the… read more here.
Keywords: wireless power; frequency tuning; frequency; resonant frequency ... See more keywords
Frequency Tuning Technique of Piezoelectric Ultrasonic Transducers for Ranging Applications
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Microelectromechanical Systems"
DOI: 10.1109/jmems.2018.2831638
Abstract: This paper presents a novel low-cost technique for the frequency tuning of piezoelectric micromachined ultrasonic transducers (PMUT). PMUT devices are fabricated using the PiezoMUMPs technology with resonance frequencies of the first and second modes at… read more here.
Keywords: technique piezoelectric; tuning technique; frequency; ultrasonic transducers ... See more keywords
Decoupling Control of Double-Side Frequency Tuning for LCC/S WPT System
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3224139
Abstract: The parameter fluctuations will lead to the frequency detuning problem of the wireless power transfer (WPT) system, thus affecting the transmission efficiency and output stability. The traditional primary-side frequency tuning method cannot realize the full… read more here.
Keywords: frequency; frequency tuning; wpt system; side frequency ... See more keywords
A Vibration Energy Harvester With Targeted Frequency-Tuning Capability
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3175984
Abstract: One of the major challenges for vibration energy harvesters is to match their resonant frequency with ambient vibration frequency. The main limitation of the existing frequency-tuning techniques is the uncontrollable tuning process, i.e., the incapability… read more here.
Keywords: frequency; vibration energy; frequency tuning; energy harvester ... See more keywords