Organic crystals with second-order optical nonlinearity feature very high and ultra-fast
optical nonlinearities and are therefore attractive for various photonics applications. During …

Organic π‐conjugated crystals with second‐order optical nonlinearity are considerably
attractive materials for diverse terahertz (THz) wave photonics. An overview of the research …

Despite the impressive progresses in terahertz (THz) sources and detection, there is still a
big challenge for high performance active optoelectronic THz devices such as THz …

In this review, we present a survey on the use of molecular nonlinear crystals in the context
of terahertz (THz) photonics. The fundamentals of nonlinear optics for converting optical and …

Organic nonlinear optical (NLO) crystals are among the most efficient (> 1%) terahertz (THz)
radiation generators. However, one of the limitations of using organic NLO crystals is that the …

New organic THz generators are designed herein by molecular engineering of the refractive
index, phonon mode, and spatial asymmetry. These benzothiazolium crystals …

Organic nonlinear optical salt crystals are widely used as efficient broadband THz
generators. Although solid state molecular motions of organic crystals can greatly influence …

Newly designed halogenated organic quinolinium crystals proposed in this work provide
fully optimized molecular ordering for maximizing the optical nonlinearity and high …

A new approach for the molecular design of highly efficient nonlinear optical organic crystals
is proposed by introducing substituents that form σ‐holes on both nonlinear optical cationic …

Graphene is an attractive material for terahertz (THz) absorbers because of its tunable Fermi-
Level (E_F). It has become a research hotspot to modulate the E_F of graphene and THz …