Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...

The Brix scale, derived from the refractive index of a solution at 20 degrees Celsius (68 Fahrenheit), is widely known. Originally, it was established by determining the weight percentage of sucrose ...

Diffraction occurs when a wave encounters an obstruction in its path and will change direction, or wrap around it. In ocean waves, we see this occur when a wave encounters an object like a jetty and ...

The original goal was to investigate biological samples on a molecular scale – but this soon led to stubborn technical problems. Eventually, however, the researchers realized that the very source of ...

A recent review article published in the journal Science highlights how modern optical sciences are increasingly leveraging the principles of non-Hermitian physics, resonant phenomena, and ...

Colorado is no stranger to afternoon thunderstorms and once these storms clear out bright, beautiful displays of color take their place. Like the name, rainbows form from rain, but it takes more than ...

A research team led by SUTD has created nanoscale glass structures with near-perfect reflectance, overturning long-held assumptions about what low-index materials can do in photonics. For decades, ...

Ah, it’s a lovely night for enjoying the outdoors. You go outside in the warm summer air to listen to the crickets and breathe in the scents of verdant life and then turn your head to the heavens. You ...