Optical gain in ultrathin self-assembled bi-layers of colloidal quantum wells enabled by the mode confinement in their high-index dielectric waveguides

• Main Authors: Foroutan-Barenji, Sina, Erdem, Onur, Gheshlaghi, Negar, Altintas, Yemliha, Demir, Hilmi Volkan
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics; Optical Gain; Colloidal Quantum Wells
• Online Access: https://hdl.handle.net/10356/148386
• Institution: Nanyang Technological University

This study demonstrates an ultra-thin colloidal gain medium consisting of bi-layers of colloidal quantum wells (CQWs) with a total film thickness of 14 nm integrated with high-index dielectrics. To achieve optical gain from such an ultra-thin nanocrystal film, hybrid waveguide structures partly comp...