Despite their cryogenic operating temperatures (≤195 K) 7, terahertz quantum cascade lasers (QCLs) now have a realistic chance of having a significant impact on a range of technological applications ...

Researchers have designed a new device that can efficiently create multiple frequency-entangled photons, a feat that cannot be achieved with today's optical devices. The new approach could open a path ...

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS Bright squeezed light, exhibiting sub-shot-noise quantum noise combined with significant optical power, is ...

For experiments that require ultra-precise measurements and control over atoms -- think two-photon atomic clocks, cold-atom interferometer sensors and quantum gates -- lasers are the technology of ...