laser

A tiny nanolaser that can function inside of living tissues without harming them has been developed by researchers at Northwestern and Columbia Universities. Only 50 to 150 nanometers thick, the laser is about 1/1,000th the thickness of a single human hair. At this size, the laser[1] can fit and function inside living tissues, with the… Read more

A laser treatment that aims to destroy aggressive brain tumors can add an average of two months to a patient’s life, compared with chemotherapy, according to new research. The increase is small but meaningful for people who have only months left to live. Half of people with the brain cancer glioblastoma die within 14 months… Read more

Ever since the first laser was invented in 1960, they’ve given off heat, either as a useful tool, a byproduct or a fictional way to vanquish intergalactic enemies. But those concentrated beams of light have never been able to cool liquids. University of Washington researchers are the first to solve a decades-old puzzle— figuring out… Read more

Conventional particle accelerators are typically gigantic machines that occupy a lot of space. Even at more modest energies, such as that used for cancer therapy and medical imaging, accelerators need large rooms to accommodate the required hardware, power supplies and radiation shielding. But a new discovery by physicists at the University of Maryland could hold… Read more

A new recipe for using intense lasers to create positrons, the antiparticle of electrons, in record numbers and density, has been found by physicists from Rice University and the University of Texas at Austin. In a series of experiments, the researchers used UT’s Texas Petawatt Laser to make large number of positrons by blasting tiny… Read more