The color of a laser pointer's dot or beam corresponds directly to the wavelength it emits. While all lasers are capable of emitting visible as well as ultraviolet and infrared light, laser pointers ...

In general, here are the steps to follow when using a laser level.

Can light itself, perhaps from a laser, cast a shadow? It might seem like a trick question, but the answer to this is "yes." ...

In a recent study, researchers from the University of Ottawa have demonstrated a remarkable new phenomenon: a laser beam ...

In a new study, researchers used a ruby crystal and specific laser wavelengths to show that a laser beam can block light and ...

In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat ...

In an advance for the control and manipulation of light, researchers from the University of Ottawa have demonstrated a laser beam casting a visible shadow. Led by Jeff Lundeen, Associate Professor in ...

Still, they don't produce a visible beam you can see to avoid. But just as surgery seeks to heal by creating a wound, the precise destruction of a laser can be a valuable advantage under certain ...