Nonreciprocal Circularly Polarized Lasing from Organic Achiral Microcrystals

TY - JOUR

T1 - Nonreciprocal Circularly Polarized Lasing from Organic Achiral Microcrystals

AU - Ji, Shiyang

AU - Zhou, Yifan

AU - Xiong, Lin

AU - Liu, Xinyu

AU - Zhu, Tong

AU - Zhan, Xiuqin

AU - Yan, Yongli

AU - Yao, Jiannian

AU - Wang, Kang

AU - Zhao, Yong Sheng

N1 - Publisher Copyright: © 2025 American Chemical Society

PY - 2025/5/14

Y1 - 2025/5/14

N2 - Organic materials are particularly appealing for circularly polarized (CP) lasers due to their remarkable chiroptical activities and exceptional optical gain properties. However, conventional organic CP lasers based on chiral molecules or microstructures typically exhibit reciprocal behavior, which complicates material synthesis and device fabrication for practical applications. In this study, we present nonreciprocal CP lasing from achiral organic microcrystals through the coupling between fluorescence linear anisotropy (f) and linear birefringence (LB), known as f-LB effect. By carefully controlling the crystallization process, we prepared triclinic and orthorhombic polymorphs with distinct molecular packing arrangements, which unlock the precise manipulation of f-LB coupling for efficient polarization state conversion of photons. The triclinic crystals exhibited stronger f-LB effect owing to the suitable angle between the emission plane and birefringence axis, resulting in robust nonreciprocal CP luminescence. More importantly, this coupling was further amplified during lasing oscillation, ultimately enabling nonreciprocal CP lasing with a dissymmetry factor of ∼1.0. These findings provide a novel approach to exploring high-performance nonreciprocal CP lasers and offer new insights into chiral photonics and optoelectronics.

AB - Organic materials are particularly appealing for circularly polarized (CP) lasers due to their remarkable chiroptical activities and exceptional optical gain properties. However, conventional organic CP lasers based on chiral molecules or microstructures typically exhibit reciprocal behavior, which complicates material synthesis and device fabrication for practical applications. In this study, we present nonreciprocal CP lasing from achiral organic microcrystals through the coupling between fluorescence linear anisotropy (f) and linear birefringence (LB), known as f-LB effect. By carefully controlling the crystallization process, we prepared triclinic and orthorhombic polymorphs with distinct molecular packing arrangements, which unlock the precise manipulation of f-LB coupling for efficient polarization state conversion of photons. The triclinic crystals exhibited stronger f-LB effect owing to the suitable angle between the emission plane and birefringence axis, resulting in robust nonreciprocal CP luminescence. More importantly, this coupling was further amplified during lasing oscillation, ultimately enabling nonreciprocal CP lasing with a dissymmetry factor of ∼1.0. These findings provide a novel approach to exploring high-performance nonreciprocal CP lasers and offer new insights into chiral photonics and optoelectronics.

UR - https://www.scopus.com/pages/publications/105004036242

U2 - 10.1021/jacs.5c05118

DO - 10.1021/jacs.5c05118

M3 - Article

C2 - 40310369

AN - SCOPUS:105004036242

SN - 0002-7863

VL - 147

SP - 16674

EP - 16680

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 19

ER -