NEWSROOM

The new device involves a tiny silicon beam that vibrates at 5 gigahertz and couples to a microwave resonator—essentially a nanoscale box in which photons bounce around, also at 5 GHz. Using a technique called electrostatic actuation, developed previously by the Mirhosseini lab for quantum applications, a microwave photon gets converted within that box to a mechanical vibration of the beam, and that mechanical oscillation, with the help of laser light, gets converted by the r

Physicists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have created a compact laser that emits extremely bright, short pulses of light in a useful but difficult-to-achieve wavelength range, packing the performance of larger photonic devices onto a single chip.

In twisted moiré photonic crystals, how the layers twist and overlap can change how the material interact with light. By changing the twist angle and the spacing between layers, these materials can be fine-tuned to control and manipulate different aspects of light simultaneously — meaning the multiple optical components typically needed to simultaneous measure light’s phase, polarization, and wavelength could be replaced with one device.

A new active metasurface, the electrical-programmable graphene field effect transistor (Gr-FET), from the labs of Sheng Shen and Xu Zhang...

“This is a feat of nanotechnology at the highest level,” said senior author Federico Capasso. “It opens up a new way to structure light...

Cold atoms are atoms that have been cooled to very low temperatures, below 1 mK, reducing their motion to a very low energy regime where...