Lights On for Silicon Photonics

Demonstration of electroluminescence at terahertz frequencies from a silicon-germanium device

New Trick for Infrared Laser Pulses

New approach to create strong, short pulses with tailor-made quantum cascade lasers

Turbulences in Frequency Combs

New type of a laser frequency comb could be used for optical spectroscopy and sensing

New Approach for Multi-Watt Terahertz Lasers

Highest radiative efficiency for any single-wavelength semiconductor quantum cascade laser

First Electrically-Driven Topological Laser

Prototype has the ability to route light particles around corners

Ultrafast Data Transfer with Sound and Light

Terahertz quantum cascade lasers could lead to the transmission of data at the rate of 100 gigabits per second

A New Widely Tunable Terahertz Laser

The new concept bases on the excitation of a molecular gas with a quantum cascade laser

New Device for Terahertz Imaging

Hyperspectral imaging with chip-scale frequency combs based on terahertz quantum cascade lasers

Terahertz Lasers Become Hot

First realization of a terahertz quantum cascade laser operating without cryogenic cooling

Frequency Combs for Microchip-Size Chemical Sensors

New technology produces laser frequencies in a much easier and more robust way than before.