The blue laser light was directed at one side of the ruby, where it passed through and cast a cool glow upon a screen, while a narrow beam of green laser light passed perpendicular to the first ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue ...

The green light increases the absorption of the blue beam, creating a darker region that casts the shadow. The researchers measured a maximum contrast of around 22 percent, roughly the equivalent ...

When that blue light then hits the screen behind it, it leaves a slightly darker outline in the exact shape and position as the green laser. This explanation might bring up a potential semantic ...

Specifically, the green laser drives some of the crystal’s electrons into an excited state, and when they decay, they enter a state where they absorb blue light that would otherwise pass through.

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Technical University of ...

Illuminate — the arts nonprofit that lit up the Bay Bridge — and the Fairmont San Francisco announced on Thursday that the hotel will shine a 720-foot light beam from a laser cannon mounted on ...