Abstract: Article introduces a novel 3-DOF piezoelectric actuator designed to achieve the high-precision angular motion of a spherical rotor and an optical mirror around three axes. The actuator ...

South Korea’s locally developed Marine Attack Helicopter (MAH) recently made its first flight, and a video now provides us with a clearer look at its extensive modifications. With its heavy load of ...

Optical illusions are more than just captivating images that trick the eye—they are windows into how our minds perceive the world around us. These intriguing visuals, often designed to confuse ...

The next generation of atomic clocks "ticks" with the frequency of a laser. This is about ... second in the International System of Units (SI). However, these optical clocks must first prove ...

Abstract: Optical wireless communication (OWC) systems rely on precise alignment between transmitter and receiver, often requiring tracking equipment in practical applications. However, the complexity ...