Terahertz (THz) quantum cascade lasers (QCLs) are semiconductor-based electrically
pumped laser sources that are based on electron transitions between the subbands in the …

Semiconductor lasers play critical roles in many different systems, ranging from optical
communications to absorption spectroscopy for environmental monitoring. Despite …

Plasmonic lasers (spasers) generate coherent surface plasmon polaritons (SPPs) and could
be realized at subwavelength dimensions in metallic cavities for applications in nanoscale …

The ability to control the polarization state of emission from semiconductor lasers is essential
for many applications in spectroscopy, imaging, and communications, inter alia, with …

This letter proposes a new approach for controlling the terahertz wavefront using simply
constructed equipment, consisting of graphene-based Fabry-Pérot cavities (GFPCs) …

The manipulation of dynamic ripple pattern in graphene monolayer is investigated at a
theory and quantitative level. High quality, stable ripple patterns are generated and …

Single-mode THz quantum-cascade lasers (QCLs) have been realized using a wide variety
of techniques to obtain a combination of large power output, good beam quality with single …

In this study, we propose and develop an enhanced three-dimensional coupled wave theory
(3D CWT) to investigate the optical field behavior in photonic crystal surface-emitting …

A hybrid mode section is integrated into the end of the metal-metal waveguide of a terahertz
(THz) frequency quantum cascade laser (QCL) by removing sub-wavelength portions of the …

The effect of circularly polarized beaming excited by traveling surface plasmons, via chiral
metasurface is experimentally studied. Here we show that the propagation direction of the …