Recently, the utilization of hybrid organic-inorganic perovskite solar cells under advanced light management designs have attracted intensive attention.  In this study, a three-dimensional (3D) finite element method (FEM) technique was used in COMSOL Multiphysics simulation package to investigate coupled optical and electrical characteristics (PSCs) with trapping nanostructures. Upon use nano-t...

Whispering-gallery mode (WGM) resonators are promising elements for future photonic devices, as they combine ultra-high quality factor with small size and mode volume. Many device schemes, such as electro-optic modulators [4, 7], receivers [6] and optoelectronic generators [8] and optical combs [2], has been suggested. They also found applications in science like optomechanics [3] and quantum c...

Dissimilar joint with good quality and mechanical properties is one of the major problems the industries. One of the most commonly used methods to solve this problem is friction stir welding process. In this paper two different tool pin with simple cylindrical and screwed profile were used to finding optimization of friction stir welding parameters to reach best mixing flow, composite structure...

We demonstrate, both analytically and experimentally, free-space pin-like optical vortex beams (POVBs).Such angular-momentum-carrying feature tunable peak intensity undergo robust anti-diffracting propagation, realized by judiciously modulating the amplitude phase profile of a standard laser beam. Specifically, they are generated superimposing radially-symmetric power-law on helical structure, ...

Abstract The influences of processing parameters and tool feature on the microstructure AA1100 AA3003 aluminium alloys were investigated using bobbin friction stir welding (BFSW). research includes flow visualization microstructural evolution weld texture metallographic measurement method. Results indicated that operational (e.g. feed rate, rotating speed) geometry can directly affect patterns ...

in this article, the effect of cells' radius on the behavior of wavelength switching optical filter andthe effect of the radius of the optical filters' key characteristics such as wavelength resonance onan optical filter based on photonic crystals, have been investigated. currently, the most commonapplied mechanism for designing optical filter based on photonic crystals is using twomechanisms s...

Modeling behavior of broadband (30 to 1000 MHz) frequency modulated near-infrared (NIR) photons through a phantom is the basis for accurate extraction of optical absorption and scattering parameters of biological turbid media. Photon dynamics in a phantom are predicted using both analytical and numerical simulation and are related to the measured insertion loss (IL) and insertion phase (IP) for...

During the last year, the HADES detector setup has been improved in order to achieve several goals, in particular to enhance the capability of the readout electronics [1] [2] (up to 10 events/s). This is required to enable HADES to cope with heavy ion beams at SIS18 and later at the SIS100 at FAIR. Here, one of the major changes of the DAQ upgrade was the replacement of the copper-based cables ...