Chirality is ubiquitous in nature, and understanding of chiral properties is critical to many applications in modern science and technology, ranging from protein function in biology and enantiomer differentiation in pharmaceutics, to light control in plasmonics and metamaterials all the way to probing magnetic properties in spintronic and superconducting devices. The chiro-optical response of...
Plasmon is a collective electronic excitation that occurs in irradiated metallic nanoparticles (NPs) [1]. Plasmonic excitation is intense and sharp, and can be exploited to modify, even qualitatively, the properties of molecules interacting with an NP. In this presentation, the key ideas of molecular plasmonics [2], i.e., the study of the photoinduced interaction between molecule and NP, are...
The DNA nucleobase derivative N$^6$,N$^6$-dimethyladenine (DMAde) stands out for its dual fluorescence, i.e. it shows short-lived emission in the near-ultraviolet from a $^1\pi\pi^*$ local excited (LE) state and longer-lived emission in the visible spectrum from a supposed twisted intramolecular charge transfer (TICT) $^1\pi\pi^*$ state. Experimental studies using time-resolved fluorescence...
Azanaphthalenes are nitrogen containing heterocycles, which have systematic variations of the nitrogen heteroatom centres within a bicyclic aromatic structure. With relevance to biological and chemical systems, understanding the underlying ultrafast dynamics upon photoexcitation in these molecules may lead to opportunities for rational design of photoactive molecules. Here, we use quantum...
