when shot through a larger blue laser beam inside of a ruby crystal, created a shadow. "Laser light casting a shadow was previously thought impossible since light usually passes through other ...

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 ...

This was then lit up side-on by a blue laser, so the green light ends up blocking some of the blue light, projecting its outline on a screen. The team says this projection meets a few criteria of ...

Using this method, Lin, Yang and their colleagues realized the amplified spontaneous emission (ASE) of blue light from the quantum dots. A further advantage of their CQD-based laser is that it ...

Soon, a flexible octopus-like robot could be completely free of wires or internal electronics. Engineers at Rice University ...

S. Lundeen The technique works because the green laser (wavelength 532 nanometers) changes the way the crystal responds to some other wavelengths of light, including the 450 nm of the blue laser.

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 ...