MIT’s Self-Organizing Laser Revolutionizes 3D Imaging of the Brain’s Protective Barrier

MIT’s self-organizing laser revolutionizes 3D imaging of the brain’s protective barrier

At high power, laser light inside a multimode optical fiber is supposed to misbehave. The beam usually breaks into a noisy, scattered pattern as the light ricochets through many paths at once. But MIT researchers found a case where that expectation fails. Push the system close to its limit, line the beam up just right, and the optical mess can collapse into a tightly focused, self-organized “pencil beam.” That beam, the team reports, can do more…

Researchers find self-organizing “pencil beam” laser could help scientists design brain-targeted therapies

MIT researchers discovered a paradoxical phenomenon in optical physics that could enable a new bioimaging method that’s faster and higher-resolution than existing technology. They discovered that, under the right conditions, a chaotic mess of laser light can spontaneously self-organize into a highly focused “pencil beam.” Using this self-organized pencil beam, the researchers captured 3D images of the human blood-brain barrier 25 times faster th…