increasing its absorption of the blue light and casting a visible shadow in the shape of the green laser. This shadow met all criteria: it was visible to the naked eye, matched the laser’s ...

"Laser light casting a shadow was previously thought ... It met all the criteria for a shadow because it was visible to the ...

We’ve all heard the “Do not stare into laser with remaining eye” joke. It’s funny because ... fed by a semiconductor seed laser, the light pulse travels through the ytterbium-doped fiber ...

It sheds light on how people make decisions about laser eye surgery—Should I have it? Where should I have it? Who should perform the surgery?—and how those decisions affect their vision ...