Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells.
These microlasers, which convert infrared light into light at higher frequencies, are among the smallest continuously emitting lasers of their kind ever reported and can constantly and stably emit light for hours at a time, even when submerged in biological fluids such as blood serum.
A wide-field image showing the light emitted by microlasers in a self-assembled 2D array. Credit: Angel Fernandez-Bravo
https://m.phys.org/news/2018-06-scientists-emitting-microlasers-nanoparticle-coated-beads.html
These microlasers, which convert infrared light into light at higher frequencies, are among the smallest continuously emitting lasers of their kind ever reported and can constantly and stably emit light for hours at a time, even when submerged in biological fluids such as blood serum.
A wide-field image showing the light emitted by microlasers in a self-assembled 2D array. Credit: Angel Fernandez-Bravo
https://m.phys.org/news/2018-06-scientists-emitting-microlasers-nanoparticle-coated-beads.html