Circularly Polarized Lasing from a Microcavity Filled with Achiral Single-Crystalline Microribbons

TL;DR

This paper reports a novel organic CP laser achieved in a microcavity filled with achiral single-crystalline microribbons, leveraging anisotropy and spin-orbit coupling to produce high dissymmetry in polarization.

Contribution

It introduces a new approach to generate circularly polarized laser emission using achiral organic crystals without chiral molecules or structures.

Findings

Achieved CP lasing with a dissymmetry factor of 1.2.

Demonstrated CP lasing in a microcavity filled with achiral organic crystals.

Proposed potential applications in 3D displays and data storage.

Abstract

Organic circularly polarized (CP) lasers have received increasing attention due to their future photoelectric applications. Here, we demonstrate a CP laser from a pure organic crystal-filled microcavity without any chiral molecules or chiral structures. Benefited from the giant anisotropy and excellent laser gain of organic crystals, optical Rashba-Dresselhaus spin-orbit coupling effect can be induced and is conductive to the CP laser in such microcavities. The maximum dissymmetry factor of the CP lasing with opposite helicities reached, is as high as 1.2. Our strategy may provide a new idea for the design of CP lasers towards future 3D laser displays, information storage and other fields.