multiple coupled circuit modeling of squirrel-cage induction motors, or winding function approach is the most detailed and complete analytical model used to analyze the performance of the faulty induction motors. this paper extends the above-mentioned model to a saturable model including variable degrees of the saturation effects using an appropriate air gap function and novel techniques for lo...

Multiple coupled circuit modeling of squirrel-cage induction motors, or winding function approach is the most detailed and complete analytical model used to analyze the performance of the faulty induction motors. This paper extends the above-mentioned model to a saturable model including variable degrees of the saturation effects using an appropriate air gap function and novel techniques for lo...

T he global communications infrastructure relies on optical fibre lasers and other photonics components. As traffic on these networks continues to increase by a stunning 40% per year, hardware companies are under pressure to reduce costs. There is thus a need for new, low-cost optical technologies that deliver high performance and can be manufactured in an environmentally friendly manner. On pa...

From the perspective of differential phase delay experienced by two counterpropagating optical fields, self-starting mode-locked fiber laser with a non-linear amplifying loop mirror (NALM) is theoretically studied. Although it generally believed that NALM shows saturable absorption effect on both continuous wave (CW) light and pulses, we find counter-intuitive fact cross-phase modulation (XPM) ...

porophyrins and their metal derivatives are strong dna binders with association constant of  to  . some of these compounds have been used for the radiations sensitization therapy of cancer and are targeted to interact with cellular dna. binding of porphyrins to dna changes the expectral and other physic chemical characteristic of porphyrins, the mode of binding can be extracted from inspection ...

Recent measurements of transmission versus fluence for a methanol-solvated asymmetric pentaazadentate porphyrin-like (APPC) cadmium complex, @(C6H4 – APPC)Cd]Cl, showed the limitations of current energy-level models in predicting the transmission behavior of organic reverse saturable absorbers at fluences greater than 1 J/cm2. A new model has been developed that incorporates higher-order triple...

We study theoretically absorption properties of MoS2 quantum dots placed in an ultrashort and strong optical pulse with the duration a few femtoseconds amplitude up to 1.5 V/Å. While monolayer has bandgap ≈1.8eV, have in-gap edge states, which open additional channels. The absorbance system strongly depends on pulse. At small amplitude, less than 0.5 V/Å, varies by more 20% frequency shows satu...

Abstract The propagation of light in the epsilon-near-zero (ENZ) region materials exhibits intriguing linear and nonlinear optical phenomenon that have been extensively exploited for a plethora applications. Here, we show properties as well ENZ wavelength magnetron-sputtered indium tin oxide (ITO) thin films could be judiciously engineered. measurement reveals control deposition conditions allo...

The nonlinear reflectivity of semiconductor saturable absorber mirrors is investigated with ultrafast time-resolved and time-averaged reflectivity measurements. The relative contributions of absorption bleaching and induced absorption are studied as a function of fluence and wavelength. The impact of induced absorption on the stability of continuous-wave mode-locking is considered theoretically...