Coherent random lasing from nano-scale aggregates of hybrid molecules by enhanced near zone scattering

Abstract

Random laser boosted by chemical bond linked active scatterer based on aggregation enhanced near zone scattering.

Whispering-Gallery-Mode for Coherent Random Lasing in a Dye-Doped Polystyrene Encapsulated Silica-Glass Capillary

“…It is worth pointing out that the single narrowed peak in Figure 1a is over 3 times narrower than that of the normal spontaneous emission spectrum of DPP in previous work [22]. It is well known that RL is divided into two classes based on the optical feedback: the incoherent [29][30][31][32][33] and coherent RLs [34][35][36][37][38].…”

“…Many studies have been carried out pumping RLs by filling a capillary with medium [20][21][22][23]. In these works, the capillary was pumped laterally, so the emitted light was likely to generate WGM 2 of 10 resonance.…”

“…Removal of pollutants from wastewater also used organic dyes [26]. Here, N,N'-di-[3-(isobutyl polyhedral oligomeric silsesquioxanes) propyl] perylene diimide (DPP) [22,23], which is composed of perylene diimide (PDI) as the gain group and polyhedral oligomeric silsesquioxanes (POSS) with a diameter of 0.54 nm as the scattering group was selected for the RL medium. π-π stacking of the chromophores and other physical interactions further makes these materials suffer from the well-known aggregation caused quenching (ACQ) effect, so it is important to reduce these influences [27].…”

One- and two-photon lasing from a TCF-based AIE dye

“…According to the literature, for such highly concentrated solutions, even the presence of small aggregates can be responsible for random feedback formation. [33][34][35] Therefore, this type of lasing was assigned to be coherent random lasing (RL). 36,37 As the obtained RL emission behavior was quite chaotic 36 (see Fig.…”

Replica Symmetry Breaking in FRET‐Assisted Random Laser Based on Electrospun Polymer Fiber

“…Different from the traditional laser system, RLs do not have well‐defined laser cavities and their lasing feedbacks are simply provided by the multiple light scattering. This cavity‐less feature enables the easy realization of RLs based on the various disorder systems, such as liquid crystal, thin polymer film, quartz tube, and polymer fiber . Moreover, due to the modifiability of RLs, many studies have been devoted to functionalize the RL systems with special characteristics such as multicolor emission and tunable lasing wavelengths .…”