A frequency shift experienced by an observer whenever a source of waves moves away from or towards the observer is a feature common to all waves — a phenomenon called the Doppler effect. Indeed, ...

The roles of energy, momentum and orbital angular momentum conservation in high-harmonic generation were studied in the past. Here, we explore the role of spin angular momentum in high-harmonic ...

Abstract: This letter proposed a method to achieve angular selectivity of electromagnetic waves. Based on odd-mode resonant frequency selective surface (FSS), we can obtain varying frequency responses ...

Abstract: The rate integrating hemispherical gyro is a new type of solid vibration gyro, and the output method of the gyro directly affects its performance. In this paper, the control method of rate ...