Electrically Tunable Flexible Circularly Polarized Laser with Ultrahigh Asymmetry Factor.

ABSTRACT: Circularly polarized (CP) laser emission delivers considerable promise for future photonic applications of chiral light sources and investigation of chiral light-matter interactions. However, the low asymmetry factor (g_lum) and lack of effective tuning have significantly hindered the development of such chiral light sources. Herein, multicolor (blue, green, and red) flexible CP lasers are demonstrated based on dye-doped cholesteric liquid crystal (CLC) microdroplets embedded in a polydimethylsiloxane (PDMS) elastomer. The CLC microdroplets, characterized by their left- or right-handed helical superstructures, serve as chiral cavities, facilitating the realization of CP lasing. By integrating chiral coating, CP lasing with opposite handedness is further effectively separat

SUBMITTER: Wei G 

PROVIDER: S-EPMC12574215 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature