An on-chip time-lens generates ultrafast pulses

Femtosecond pulsed lasers—which emit light in ultrafast bursts lasting a millionth of a billionth of a second—are powerful tools used in a range of applications from medicine and manufacturing, to sensing and precision ...

Researchers create first supermode optical resonator

What does it take for scientists to push beyond the current limits of knowledge? Researchers in Federico Capasso's group at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an effective ...

Files posted online to 'print' working handgun

Computer files to create a handgun almost entirely from parts made with a 3D printer went online Monday, alarming gun control advocates after it was successfully test-fired by its inventor.

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