Electrically reconfigurable extended lasing state in an organic liquid-crystal microcavity
- Dmitriy Dovzhenko
- Luciano Siliano Ricco
- Krzysztof Sawicki
- Marcin Muszyński
- Pavel Kokhanchik
- Piotr Kapuściński
- Przemysław Morawiak
- Wiktor Piecek
- Piotr Nyga
- Przemysław Kula
- Dmitry Solnyshkov
- Guillaume Malpuech
- Helgi Sigurðsson
- Jacek Szczytko
- Simone De Liberato
2026-04-16
Small-footprint, low-power, and reprogrammable arrays of coupled coherent emitters are highly sought in modern nanophotonics. Among existing solutions, only inorganic semiconductor microcavities operating in a strong light-matter coupling regime exhibit controlled on-chip interaction between individual coherent states, predominantly at cryogenic temperatures. Here, we demonstrate electrically controlled in-plane interaction between optically reconfigurable spatially separated lasing states, operating at room temperature in the weak light-matter coupling regime. An organic liquid crystal-filled microcavity is introduced as a new material platform where a spatially extended coherent lasing state, or “supermode", appears due to the blueshift-induced near-field transverse coupling between distinct spatially pumped states. We demonstrate a wide-range microscale control of supermode near- and far-field with on-chip phase-locking tuning functionality. We realize electrical control over the interaction strength between lasing states and corresponding mutual coherence going beyond nearest neighbours, and a spin-selective directional coupling regime by using a photonic analogue of the Rashba-Dresselhaus spin-orbit interaction.