Libai Huang

Feb 19, 2024 | nature.com | Christian Lange |Emma Daggett |Valentin Walther |Libai Huang

AbstractAn array of radiatively coupled emitters provides a platform for generating, storing and manipulating quantum light. However, the simultaneous positioning and tuning of several lifetime-limited emitters into resonance remains a challenge. Here we report the creation of superradiant and subradiant entangled states in pairs of lifetime-limited and subwavelength-spaced organic molecules by permanently shifting them into resonance with laser-induced tuning.

Mar 31, 2023 | nature.com | Libai Huang

Using low-temperature scanning tunnelling microscopy on a MoSe2/few-layer graphene heterostructure enables localized exciton generation and mapping with atomic-scale spatial resolution. Excitons — bound electron–hole pairs — can couple strongly to light and play a crucial role in determining the optical properties of low-dimensional semiconducting materials. The distance between the electron and hole is characterized by the exciton Bohr radius, which is on the scale of nanometres.