The advent of metamaterials more than 15 years ago has offered extraordinary new ways of manipulating electromagnetic waves. Yet, progress in this field has been unequal across the electromagnetic spectrum, especially when it comes to finding applications for such artificial media. Optical metamaterials, in particular, are less compatible with active functionalities than their counterparts deve...

The realization of lasers as small as possible has been one of the long-standing goals of the laser physics and quantum optics communities. Among multitudes of recent small cavities, the one-dimensional nanobeam cavity has been actively investigated as one of the most attractive candidates for effective photon confinement thanks to its simple geometry. However, the current injection into the ul...

Abstract The electrically driven large-load-ratio six-legged robot with engineering capability can be widely used in outdoor and planetary exploration. However, due to the particularity of its parallel structure, effective utilization rate energy is not high, which has become an important obstacle practical application. To research power consumption characteristics mobile system beneficial spee...

In order to realize the active and compliant motion of robot, it is necessary eliminate impact caused by processing contact. A hybrid control strategy for grinding polishing robot proposed based on adaptive impedance control. Firstly, an electrically driven linear end effector designed system. The macro micro motions model established, using method, which contact system environment. Secondly, c...

Model-based controllers have successfully been applied to many electrically driven robotic manipulators to improve their tracking performance. The application to hydraulically actuated systems however is not straight forward, due to the nonlinear internal dynamics of the actuators. This paper presents the modelling of an experimental hydraulic robot arm and the implementation of a cascaded cont...