"For Credible Lasers, See Inside." THE LASER IS LESS THAN three years younger than the space age. Just days after the Soviet Union launched Sputnik I on October 4, 1957, Charles Townes and Gordon ...

All of these attractive attributes come directly from the laser design. So how is a PCSEL different from other types of semiconductor laser? The answer is that it makes use of a photonic crystal ...

When discussing lasers, coherence represents the ability of a wave function — which describes the action of photon particles — to interfere with other wave functions. (In this case, this type of ...

The paper that described the first ever laser was incredibly short, considering the impact it would have on the world. In around 240 words and without using the word 'laser', Theodor Maiman's ...

Like a magic wand, a laser can smooth out fine lines and acne scars, vaporize birthmarks and moles, and erase those less-than-glamorous sun spots and facial hairs. Spider veins, warts, tattoos ...