Dual-color plasmonic random lasers for speckle-free imaging
- 26 August 2020
- journal article
- research article
- Published by IOP Publishing in Nanotechnology
- Vol. 31 (46), 465204
- https://doi.org/10.1088/1361-6528/abaadc
Abstract
A dual-color plasmonic random laser under single-excitation is achieved in an ultrathin membrane doped with binary quantum dots and gold nanorods. The gold nanorods tune the luminescence lifetime and emission efficiency of quantum dots. Under single excitation, low-threshold random lasing is observed. Green random lasing at 547 nm is 'turned on' and red random lasing at 630 nm is greatly enhanced by the transversal and longitudinal surface plasmon resonance of the gold nanorods, respectively. Speckle-free color imaging is achieved by using the proposed dual-color random laser source. These properties would facilitate the development of random lasers in fields of illumination and imaging.Keywords
Funding Information
- Natural Science Foundation of Beijing Municipality (Z180015)
- National Natural Science Foundation of China (61822501)
This publication has 34 references indexed in Scilit:
- FRET-Tuned Resonant Random LasingThe Journal of Physical Chemistry C, 2014
- Random Lasing with a High Quality Factor over the Whole Visible Range Based on Cascade Energy TransferAdvanced Optical Materials, 2013
- Dynamical Color-Controllable Lasing with Extremely Wide Tuning Range from Red to Green in a Single Alloy Nanowire Using Nanoscale ManipulationNano Letters, 2013
- Metal–Dielectric Core–Shell Nanoparticles: Advanced Plasmonic Architectures Towards Multiple Control of Random LasersAdvanced Optical Materials, 2013
- Simultaneous Excitation and Emission Enhancement of Fluorescence Assisted by Double Plasmon Modes of Gold NanorodsThe Journal of Physical Chemistry C, 2013
- Red, green and blue lasing enabled by single-exciton gain in colloidal quantum dot filmsNature Nanotechnology, 2012
- Random Laser Based on Waveguided Plasmonic Gain ChannelsNano Letters, 2011
- Quantum Dot Light-Emitting Devices with Electroluminescence Tunable over the Entire Visible SpectrumNano Letters, 2009
- Random Laser Action in Semiconductor PowderPhysical Review Letters, 1999
- Optical Constants of the Noble MetalsPhysical Review B, 1972