New York Times: In an elegant melding of theoretical and experimental physics, scientists at Yale University have taken the basic function of a laser and flipped it around—producing a device that absorbs, rather than emits, a beam of light, writes Henry Fountain for the New York Times. The device, which the scientists call a “coherent perfect absorber” or, more popularly, an anti-laser, may lead to the development of new kinds of switches, filters, and other components that could be useful in hybrid optical-electronic computers under development, among other applications. A. Douglas Stone, a theoretical physicist at Yale, and colleagues published their results last week in Science.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
Get PT in your inbox
PT The Week in Physics
A collection of PT's content from the previous week delivered every Monday.
One email per week
PT New Issue Alert
Be notified about the new issue with links to highlights and the full TOC.
One email per month
PT Webinars & White Papers
The latest webinars, white papers and other informational resources.