Optical rotatum” is the term researchers coined to describe a newly discovered structure of light. Beams of light that can be ...

“It has to resonate.” Sagnac’s counter-rotating beams of light are analogous to beams in a linear cavity. If the turntable rotates clockwise, the beam traveling clockwise has farther to go ...

In essence, calcite splits a beam of light into two dots based on polarization. By aligning filters and rotating angles, you can observe how light behaves when forced into ‘choices’.