Goos–Hänchen Lateral Displacements and Angular Deviations: When These Optical Effects Offset Each Other

Reciprocity and Emotions When Reciprocators Know Each Other

This is an experimental study of a three-player power-to-take game where a take authority is matched with two responders. The game consists of two stages. In the first stage, the take authority decides how much of the endowment of each responder that is left after the second stage will be transferred to the take authority (the so-called take rate). In the second stage, each responder can react ...

Real-time detection of linear and angular displacements with a modified DVD optical head.

Here we demonstrate that an astigmatic detection system (ADS), constructed with a modified digital-versatile-disk (DVD) optical head, can achieve real-time measurement of a linear displacement and two-dimensional (2D) tilt angles with a high sensitivity. An atomic force microscope (AFM), using our detection system to sense the deflection of microfabricated cantilevers, can resolve single atomic...

Development of an Optical Fiber Sensor for the Measurement of Angular Displacements in Anthropomorphic Systems

Due to the arising importance and widespread role of robotic systems, it is fundamental the development of high-performance position sensors. There are several existing methods to determine position of anthropomorphic manipulators. However, they present limitations, such as vulnerability to electromagnetic fields or application of mechanical load to the system. Concerning these problems, an opt...

Movable Kidney, and Other Displacements and Malformations

Large positive and negative lateral optical beam displacements due to surface plasmon resonance

We report abnormally large positive and negative lateral optical beam shifts at a metal–air interface when the surface plasmon resonance of the metal is excited. The optimal thickness for minimal resonant reflection is identified as the critical thickness above which a negative beam displacement is observed. Experimental results show good agreement with theoretical predictions and the large obs...