We present the science and technology roadmap for graphene, related two-dimensional
crystals, and hybrid systems, targeting an evolution in technology, that might lead to impacts …

Low‐dimensional (LD) materials demonstrate intriguing optical properties, which lead to
applications in diverse fields, such as photonics, biomedicine and energy. Due to …

All-optical switches have attracted attention because they can potentially overcome the
speed limitation of electric switches. However, ultrafast, energy-efficient all-optical switches …

Dual-comb spectroscopy offers the potential for high accuracy combined with fast data
acquisition. Applications are often limited, however, by the complexity of optical comb …

Vertical-external-cavity surface-emitting lasers (VECSELs) are the most versatile laser
sources, combining unique features such as wide spectral coverage, ultrashort pulse …

Ultrafast fiber lasers have the potential to make applications of ultrashort pulses widespread–
techniques not only for scientists, but also for doctors, manufacturing engineers, and more …

It was recently demonstrated that broadband quantum cascade lasers can operate as
frequency combs. As such, they operate under direct electrical pumping at both mid-infrared …

Semiconductor lasers are convenient and compact sources of light, offering highly efficient
operation, direct electrical control and integration opportunities. In this review we describe …

The principal ideas of the thin-disk laser design will be illustrated and the advantages for
operating different laser materials will be explained. The results for continuous-wave (CW) …

Nonlinear optical effects have enabled numerous applications such as laser frequency
conversion, ultrafast electro-optical, and all-optical modulation. Both gaseous and bulk …