Green laser light can trigger collagen fibers to link up in nerves and other damaged tissue
Lasers can be used to trap and manipulate electrically neutral particles. These techniques have allowed scientists to cool vapors to near absolute zero, develop new atomic clocks, and stretch single molecules of DNA
The Pentagon ramps up efforts to field directed-energy beam weapons for land, air and sea
Former Hughes Aircraft Company researchers Daniel Nieuwsma and Bob Byren recall the birth of the laser and the past three decades they have spent taking the technology in new directions
Flexible optical fibers would provide access to hard-to-reach areas of the body
A revolutionary kind of laser light called an optical frequency comb makes possible a more precise typeof atomic clock and many other applications
Semiconductors can generate laser light in all colors except one. But new techniques for growing laser diodes could soon make brilliant full-spectrum displays a reality
The U.S. Department of Energy (DoE) has announced that the world's biggest laser is ready to start blasting away after 12 years in the making. The $3.5-billion stadium-size National Ignition Facility (NIF), housed at Lawrence Livermore National Laboratory (LLNL) in Livermore, Calif., consists of 192 separate beams, each of which stands as the most energetic ever built, says LLNL spokesperson Bob Hirschfeld.
Lasers that stimulate condensation may help to induce rain artificially.
Researchers defy the laws of physics by making a laser beam bend
Researchers have devised a way to make liquid flow against gravity through capillary action by etching tiny channels into the surface of a metal plate with a high-intensity laser.
Nearly a decade ago, Leik Myrabo shared with Scientific American readers his vision for the future of space travel: a "LightCraft" pushed out to the stars by a pulsed infrared laser beam from the ground or pulled into space by a laser beamed down from a solar-powered station orbiting Earth.
New ultrashort-pulse laser delivers enough power to vaporize more viruses without harming healthy cells
The persistent concern of when and where terrorists will strike next—heightened by the Mumbai attacks—has led to a number of tech innovations over the past several years, including full-body airport security scanners and adhesives designed to keep buildings from blowing to pieces if bombed.
A recent shift in U.S. military strategy and provocative actions by china threaten to ignite a new arms race in space. But would placing weapons in space be in anyone's national interest?
A still-useful laser reflector, Lunokhod 1, left on the moon in 1970 and missing since 1971 has finally been spotted by researchers at the U.C. San Diego, working with NASA images. Cynthia Graber reports
Researchers have used powerful lasers to induce lightning in thunderclouds. Cynthia Graber reports.
New exhibit shows how technology helps to study and restore artwork
Red bar-code and DVD lasers may get multicolored company thanks to new ultramicroscopic crystals
Microlasers go deeper into the infrared to boost optical networking
Lasers and living tissue actually work together to make laser incisions work exceptionally effectively. Chelsea Wald reports.
"When you flash a laser for the first time…it's like you've created something magical." Tom Baer, executive director of the Stanford Photonics Research Center, said this to me recently when I asked him why he's spent the past three decades both studying and developing the technology.Aesthetics aside, Baer says he's seeing a "renaissance" in laser technology in recent years.