This article details the demonstration of a strain-balanced, InP-based mid-infrared quantum cascade laser structure that is grown directly on Si substrate. facilitated by creation metamorphic buffer layer used to convert from lattice constant (0.543 nm) InP (0.587 nm). The geometry utilizes two top contacts in order be compatible with future large-scale integration. Unlike previous reports, thi...

We reexamine the regularization of two-point function a scalar field in Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime. Adiabatic provides set subtraction terms momentum space that successfully remove its ultraviolet divergences at coincident points, but can significantly distort power spectrum infrared scales, especially for light fields. In this work we propose, by using intrinsic ambig...

In this work, the investigation of wave absorption, phase formation, crystal structure and magnetic properties of SrFe12O19 hexa-ferrites nanoparticles that synthesized by co-precipitation using a microwave heating system and polyaniline-SrFe12O19 was carried out by using a combination of vector network analyser (VNA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier tra...

We present an analysis of the effects of luminosity on the shape of the mid-infrared spectral energy distributions (SEDs) of 234 radio-quiet quasars originally presented by Richards et al. In quasars without evident dust extinction, the spectrally integrated optical and infrared luminosities are linearly correlated over nearly three decades in luminosity. We find a significant (& 99.99% confide...

Digital camera sensors are sensitive to wavelengths ranging from the ultraviolet (200-400nm) to the near-infrared (700-100nm) bands. This range is, however, reduced because the aim of photographic cameras is to capture and reproduce the visible spectrum (400-700nm) only. Ultraviolet radiation is filtered out by the optical elements of the camera, while a specifically designed “hot-mirror” is pl...