However, not all innovations are equal and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

Broadband metamaterial-based perfect absorbers (MPAs) have significant potential in many applications. However, the design and fabrication of ultra-broadband terahertz MPAs pose considerable ...

Recent, the rapid development of optoelectronic devices has made human life more convenient. However, these devices emit large amounts of electromagnetic radiation, which not only endanger human ...

Common push puppet toys in the shapes of animals and popular figures can move or collapse with the push of a button at the bottom of the toys' base. Now, a team of engineers has created a new class of ...

Working in the terahertz (THz) range offers unique opportunities in various applications, including biomedical imaging, telecommunications, and advanced sensing systems. However, because of the unique ...

The chameleon changes its color by adjusting the spacing between photonic crystals in its skin to modulate light reflection (Figure 1). A research team at the University of California at Berkeley has ...