Unlike many STEM toys that rely heavily on building-block pieces, the Rider kit is ready to use out of the box and you don’t ...

Abstract: Although the whispering gallery mode (WGM) microcavity sensor is known for its high sensitivity, conventional monitoring using single-mode methods poses challenges in detecting very low ...

Ultrasonic energy is widely used to sense the presence of nearby objects and even determine their distance if needed, as well as to measure fluid flow rates in industrial and scientific applications.

Abstract: Based on Mach-Zehnder interference (MZI) principle, we propose a balloon-like optical fiber micro-liquid-level sensor and verify its performance through experiments. The sensor can ...