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.

Nano-Imaging of 2D Materials

First observation of intersubband transitions in 2D materials via scattering scanning near-field optical microscopy

Data Transmission With Laser Frequency Combs

Discovery has the potential of increasing the capacity of wireless communications

Backscattering Spectroscopy Reveils Counterfeit Drugs

Broadband, spectrally, tunable quantum cascade lasers can reliably detect a substance‘s fingerprint

Bridging the Terahertz Gap

Optical frequency comb offers a convenient way to generate elusive terahertz frequencies

Terahertz Laser With More Power

New design boosts the power output of the best-performing chip-scale terahertz laser by 80 percent.

Microscope Identifies Individual Particles

Low-cost spectroscopy technique could allow detection of microscopic amounts of chemicals