| Jun 06, 2025 |
Room-temperature nanolasing via plasmon-enhanced exciton localizationScientists demonstrated room-temperature plasmonic lasing by integrating quasi-two-dimensional perovskites with high-Q plasmonic nanostructures.(Nanowerk News) Working in collaboration with Prof. Chu-Chen Chueh from National Taiwan University (NTU), Prof. Yu-Jung Lu and her collaborators demonstrated room-temperature plasmonic lasing by integrating quasi-two-dimensional (quasi-2D) perovskites with high-Q plasmonic nanostructures. A research team led by Prof. Yu-Jung Lu at the Research Center for Applied Sciences, Academia Sinica, recently published their findings in Science Advances ("Plasmon-enhanced exciton relocalization in quasi-2D perovskites for low-threshold room-temperature plasmonic lasing"). |
| Room-temperature nanolasers are crucial for advancing optical communication and photonic quantum technologies due to their capability to generate coherent light at a subwavelength scale. |
| However, their development is constrained by challenges such as insufficient gain, material instability, and high lasing thresholds. By integrating quasi-2D perovskites with high-Q plasmonic nanostructures, we demonstrate a stable, wavelength-tunable, single-mode laser operating at room temperature. This device leverages a unique exciton relocalization effect in quasi-2D perovskites with additive, substantially enhancing optical gain and improving stability. |
| When coupled with a waveguide-hybridized surface lattice resonance mode (W-SLR), the enhanced light-matter interaction facilitates single-mode lasing with a notably low threshold. Additionally, the device achieves robust lasing performance with extended operational stability. |
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| Room-temperature plasmonic lasing by integrating quasi-two-dimensional perovskites with high-Q plasmonic nanostructures. (Image: National Taiwan University) |
| These results provide a scalable, low-cost, and energy-efficient platform for nanolasing, with potential applications in next-generation photonic technologies, including LiDAR, sensing, optical communication, and computation. 0606.000.JPG |
| This research on room-temperature nanolasing using quasi-two-dimensional (quasi-2D) perovskites was featured as a highlighted article on the journal’s homepage. |
| “After seven years of searching for the right materials and design, we finally see a solution. By precisely tailoring light-matter interaction at the nanoscale using thickness-controllable quasi-2D perovskites coupled with the high-Q plasmonic platform, we have realized stable room-temperature nanolasers,” said Prof. Yu-Jung Lu. |
| Source: National Taiwan University (Note: Content may be edited for style and length) |
