Mirrorless Cholesteric Lasers Using ESIPT-Based AIE Dyes via a Gain-Structure Decoupling Strategy.

ABSTRACT: We report a high-efficiency mirrorless laser system based on aggregation-induced emission (AIE) dye-infiltrated cholesteric liquid crystal (CLC) photonic structures, enabled by a gain-structure decoupling strategy. Traditional dye-doped CLC lasers are constrained by concentration quenching and photonic structure disruption at high dye loading. To overcome these limitations, we fabricate nanoporous cholesteric polymer scaffolds via photopolymerization-induced phase separation, followed by selective removal of nonreactive mesogens. These porous templates are subsequently infiltrated with an excited-state intramolecular proton transfer-type AIE dye, exhibiting strong emission and a large Stokes shift in the aggregated state. By tuning porosity through controlled composition, we achieve high d

SUBMITTER: Moon TW 

PROVIDER: S-EPMC12809768 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature