Excimer Emission in Self‐Assembled Organic Spherical Microstructures: An Effective Approach to Wavelength Switchable Microlasers

Broadband wavelength tunable microlasers are built based on the monomer–excimer dual luminescence in organic-dye-doped whispering-gallery-mode resonators. The lasing modes can be reversibly switched between the two emission bands by introducing an appropriate photochromic compound into the flexible cavity, providing profitable enlightenment for the design and fabrication of soft photonic devices with specific functionalities. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.