@article{Park2021, 
author = {Youngsin Park and Guanhua Ying and Atanu Jana and Vitaly Osokin and Claudius C. Kocher and Tristan Farrow and Robert A. Taylor and Kwang S. Kim},
title = {Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {1},
pages = {108-113},
keywords = {perovskite quantum dots, coherent lasing, transverse electromagnetic mode, stimulated emission},
url = {https://www.sciopen.com/article/10.1007/s12274-020-3051-y},
doi = {10.1007/s12274-020-3051-y},
abstract = {Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ~ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.}
}