TY - JOUR T1 - Atomically precise clusters of gold and silver: A new class of nonlinear optical nanomaterials AU - Antoine, Rodolphe Y1 - 2018/9/13 PY - 2018 DA - 2018/9/13 N1 - doi: 10.31716/frt.201801001 DO - 10.31716/frt.201801001 T2 - Frontier Research Today JF - Frontier Research Today JO - Front. Res. Today. SP - 1001 VL - 1 C7 - 1001 PB - Frontier Research Today S.A. SN - N2 - ABSTRACT: Functional ligand-protected metal cluster nanomaterials with increased two-photon absorption and two-photon excited emission might result in new technologies within the fields of bio-imaging applications. During this article, I review the two-photon absorption/emission properties of atomically precise ligand-protected silver and gold nanoclusters, coined "€śligand-core"€ť NLO-phores. This includes quantum-chemical methodologies using time-dependent density theory. I will analyze physical phenomena and trends resulting in giant two-photon absorption/emission responses of a number of series of model nanoclusters. I will then focus my review on the effects of the relaxation pathways within the linear and nonlinear optical regime, similarly as innovative ways aiming at enhancing their two-photon emission responses. M3 - doi: 10.31716/frt.201801001 UR - http://dx.doi.org/10.31716/frt.201801001 ER -