The characteristics of a two-dimensional (2D) left-handed traveling-wave field-effect transistor, which is two 2D composite rightand left-handed (CRLH) transmission lines with both passive and active couplings, are discussed for generating non-attenuated waves having left-handedness in 2D. In this study, the design criteria for wave amplification are described, and the results from numerical ca...

We report experimental studies of bright-state polaritons of four-wave mixing (FWM) and six-wave mixing (SWM) signals through cascade nonlinear optical parametric amplification processes in an atom-cavity composite system for the first time. Also, the coexisting cavity transmission modes of parametrically amplified FWM and SWM signals are observed. Finally, electromagnetically induced absorptio...

The two major approaches to understanding plane parallel shear instability—the counterpropagating Rossby wave (CRW) and overreflection (OR) approaches—illuminate very different fundamental aspects. This work examines how such seemingly different views can explain the same phenomena and why these differences arise, with the overall goal of deepening our understanding of shear instability. This i...

BACKGROUND Marfan syndrome is characterized by aortic root dilation, beginning in childhood. Data about aortic pulsatile hemodynamics and stiffness in pediatric age are currently lacking. METHODS AND RESULTS In 51 young patients with Marfan syndrome (12.0±3.3 years), carotid tonometry was performed for the measurement of central pulse pressure, pulse pressure amplification, and aortic stiffne...

The extraordinary properties of laser-induced transparency of a negative-index slab and parametric amplification for a backward-wave signal are investigated. The effects of the idler absorption and phase mismatch on the amplification of the signal are studied, and the feasibility of ensuring robust transparency for a broad range of control field intensities and slab thicknesses is shown. A part...

We have developed a new wave scheme particularly aiming to provide better temperature fields with realistic variability for trajectory modeling of dehydration processes in the tropical tropopause layer (TTL). The new scheme includes amplitude-phase interpolation and amplification of waves in reanalysis data. Amplification factors are based on statistical variability differences between reanalys...

We present a parameter estimation technique based on performing joint measurements of a weak interaction away from the weak-value-amplification approximation. Two detectors are used to collect full statistics of the correlations between two weakly entangled degrees of freedom. Without discarding of data, the protocol resembles the anomalous amplification of an imaginary-weak-value-like response...

The aim of this paper is to study the influence of the shape of the temperature distribution on the thermoacoustic amplification in an annular thermoacoustic prime mover. An analytical model is presented and the acoustic field in the whole device is computed for an arbitrary temperature distribution. The obtained results demonstrate dependence of the thermoacoustic amplification not only on the...

Previous studies have suggested that Arctic Amplification has caused planetary-scale 3 waves to elongate meridionally and slowdown , resulting in more frequent blocking pat-4 terns and extreme weather. Here, trends in the meridional extent of atmospheric waves 5 over North America and the North Atlantic are investigated in three reanalyses, and it is 6 demonstrated that previously reported posi...

Reynolds-averaged Navier–Stokes (RANS) methods often cannot predict shock/turbulence interaction correctly. This may be because RANS models do not account for the unsteady motion of the shock wave that is inherent in these interactions. Previous work proposed a shock-unsteadiness correction that significantly improves prediction of turbulent kinetic energy amplification across a normal shock in...