Over the past decade, the demonstration of frequency combs has been reported in a wide
range of quantum cascade lasers. These combs have huge potential in applications …

Abstract 2D materials are a subject of intense research in recent years owing to their
exclusive photoelectric properties. With giant nonlinear susceptibility and perfect phase …

Abstract The Maxwell–Lindblad transmission line (MLT) equations are introduced as a
model for hybrid photonic and microwave‐electronic quantum devices. The hybrid concept …

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

Graphene is a nonlinear material in the terahertz (THz) frequency range, with χ (3)∼ 10–9
m2/V2∼ 15 orders of magnitude higher than that of other materials used in the THz range …

Optical frequency combs (OFCs), which establish a rigid phase-coherent link between the
microwave and optical domains of the electromagnetic spectrum, are emerging as key high …

Terahertz (THz) emission spectroscopy (TES) has emerged as a highly effective and
versatile technique for investigating the photoelectric properties of diverse materials and …

Portable terahertz (THz) frequency comb sources are highly desired for applications in
rotational molecular spectroscopy and sensing. To date, direct THz quantum cascade laser …

We propose a simple and convenient analytical model for the description of coherent
passive mode locking in a two-section ring-cavity laser based on the generalized area …

Since the beginning of this millennium, frequency comb generators have reshaped
frequency metrology and related areas. After more than two decades since their first …