The generation of stable trains of ultrashort (femtosecond to picosecond), terahertz-
frequency radiation pulses with large instantaneous intensities is an underlying requirement …

The ideal laser source for nonlinear terahertz spectroscopy offers large versatility delivering
both ultra-intense broadband single-cycle pulses and user-selectable multi-cycle pulses at …

Interaction of intense terahertz (THz) waves with graphene based modulation devices holds
great potential for the optoelectronic applications of the future. Here, we present a thin film …

Miniature lasers producing ultrashort phase‐coherent pulses at high repetition rates by
stable mode‐locking in ambient conditions can offer unique capabilities in various …

In research and engineering, short laser pulses are fundamental for metrology and
communication. The generation of pulses by passive mode-locking is especially desirable …

We use plasmon enhancement to achieve terahertz (THz) photoconductive switches that
combine the benefits of low-temperature grown GaAs with mature 1.5 μm femtosecond …

The progress achieved in the last few decades in the performance of ultrafast laser systems
with high average power has been tremendous, and continues to provide momentum to new …

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 …

Saturable absorbers (SA) operating at terahertz (THz) frequencies can open new frontiers in
the development of passively mode-locked THz micro-sources. Here we report the …

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 …