Terahertz quantum cascade lasers are compact, electrically pumped semiconductor laser
sources that are capable of delivering tens of milliwatts of power in continuous wave. Here …

Terahertz time-domain spectroscopy is widely used in a broad range of applications where
knowledge of both the amplitude and phase of a terahertz wave can reveal useful …

The terahertz spectral range (λ= 30–300 µm) has long been devoid of compact, electrically
pumped, room-temperature semiconductor sources,,,. Despite recent progress with terahertz …

Room temperature, broadly tunable, electrically pumped semiconductor sources in the
terahertz spectral range, similar in operation simplicity to diode lasers, are highly desired for …

We report room-temperature terahertz sources based on Čerenkov difference-frequency
generation in dual-wavelength mid-infrared quantum cascade lasers with giant resonant …

Terahertz quantum cascade laser sources with intra-cavity non-linear frequency mixing are
the first room-temperature electrically pumped monolithic semiconductor sources that …

Recent advances in microfabricated terahertz quantum cascade lasers have achieved
coherent power and frequency performance previously possible only with much larger gas …

Tunable quantum cascade lasers operating in the terahertz frequency range are
demonstrated. By using an external cavity based on the reflection from a movable mirror …

Ultra-short pulses are an attractive way of expanding today's terahertz time-domain systems
toward frequencies above 2 THz, and moreover mode control enables reliable generation of …

Quantum cascade lasers are compact devices based on mature compound semiconductors
such as GaAs that take advantage of highly developed optoelectronic fabrication techniques …