Ultra-wide bandgap Ga2O3-based optoelectronic devices have attracted considerable attention owing to their special significance in military and commercial applications. Using RF magnetron sputtering post-annealing, monoclinic Ga2O3 films of various thicknesses were created on a c-plane sapphire substrate (0001). The structural optical properties β-Ga2O3 then investigated. results show that all ...

BACKGROUND HIV-infected (HIVI) men who have sex with men (MSM) may transmit HIV to their sero-discordant sex partner/s. This study assesses the knowledge, attitudes and sex-practices of Israeli HIVI-MSM. METHODS This cross-sectional study compared HIVI-MSM to self-reported HIV-uninfected (HIVU) MSM by using anonymous questionnaires that were distributed in AIDS-treatment centers and gay-relat...

The most promising technology for radiography is active matrix flat panel imaging systems (AMFPI). However, AMFPI systems are relatively expensive in comparison with conventional computed radiography (CR) systems. Therefore for general radiography applications low cost systems are needed, especially in hospitals and healthcare systems of the developing countries. The focus of this research is t...

The GaN-based material system is well suited to application as a photodetector material for operation in the 200–365 nm wavelength range because of its tunable wide direct bandgap. In addition, photodetectors made using this material system also have the advantages of being solid-state and small in size, with good chemical and thermal stability, thereby saving energy in operation and having lon...

We computationally show that metallic nanoslitsintegrated on Germanium metalsemiconductor-metal photodetectors show absorption enhancement up to 8 for TM-polarization in the communications C-band due to interference of horizontal surface plasmons. OCIS codes: 040.5160; 130.0250; 250.5403 Semiconductor industry has continuously scaled down electronic devices, significantly improving device leve...

The rapid development of ultrafast sciences places an increasing demand on high-speed, high-dynamic range measurement techniques. An optical correlation technique based on photoconductivity for measuring ultrafast laser pulses was first demonstrated by Austin et aL1 However, due to relatively low efficiency of.both signal detection and sampling, such a system was not able to measure weak optica...

Nanostructured metal–semiconductor-metal photodetectors (MSM-PDs) can assist in future high-speed communication devices for achieving high responsivity characteristics. However, such suffer from low due to absorption, and the large band gap limits its detection range. Herein, we propose a GaAs-based photodetector with enhanced photoresponse by plasmonic Au-GaAs grating structure. The design of ...