Electron–phonon interactions play an essential role in charge transport and transfer processes semiconductors. For most structures, tailoring electron–phonon for specific functionality remains elusive. Here, it is shown that, hybrid perovskites, coherent phonon modes can be used to manipulate transfer. In the 2D double perovskite, (AE2T)2AgBiI8 (AE2T: 5,5“-diylbis(amino-ethyl)-(2,2”-(2)thiophen...

The negative chirp operation of a hybrid modulation laser diode (HMLD) was numerically analyzed during with 25-Gbit/s non-return-to-zero (NRZ) dynamic signals. We confirmed that the dispersion tolerance optical signal generated from HMLD could be increased dramatically by introducing time delay to signals applied gain and intra-cavity loss sections. These results suggest unique approach for dis...

Graphene, a 2D material with tunable optical properties, has recently attracted intense interest for reconfigurable metasurfaces. So far, the working wavelength of graphene-based or hybrid graphene metasurfaces been limited in mid-infrared and terahertz spectra. In this paper, by combining Au nanostructures, authors demonstrate near-infrared metasurface decent modulation efficiency, weak depend...

This paper presents different types of bipolar Pulse Width Modulation (PWM) strategies for the chosen Cascaded MultiLevel Inverter (CMLI). The main purpose of MLI is to use power semiconductor devices of lower voltage ratings to realize high voltage levels at inverter output. Due to their ability to obtain refined output voltage waveforms, reduced Total Harmonic Distortion (THD) and reduced EMI...

High-speed modulation results and analysis of hybrid silicon evanescent lasers is described. It should be possible to achieve a 3dB-bandwidth over 50 GHz and a data rate of 50 Gbit/s. 2009 Optical Society of America OCIS codes: (130.3120) Integrated optics devices; (130.3130) Integrated optics materials

The complexity involved in the designing of a conventional PI type speed controller for an induction motor is replaced by fuzzy logic controller, synthesized by adaptive neural fuzzy interference system (ANFIS) method. This paper presents a hybrid pulse width modulation (HPWM) algorithm to reduce the steady state ripple in current. The conventional space vector pulse width modulation (CSVPWM) m...

Here we report a wafer-scale graphene/P(VDF-TrFE)/graphene multilayer for light-weight, flexible and fast-switched broadband modulation applications. The P(VDF-TrFE) film not only significantly reduces the sheet resistance of graphene throughout heavy doping of ∼0.8 × 10(13) cm(-2) by nonvolatile ferroelectric dipoles, but also acts as an efficient electro-optic (EO) layer. Such multilayered st...

Selectivity and low power consumption are major challenges in the development of sophisticated gas sensor devices. A sensor system is presented that unifies selective sensor-gas interactions and energy-harvesting properties, using defined organic-inorganic hybrid materials. Simulations of chemical-binding interactions and the consequent electronic surface modulation give more insight into the c...