Self‐Assembled Organic Crystalline Microrings as Active Whispering‐Gallery‐Mode Optical Resonators

Photonic ring structures can provide better photon confinement than1D structures. Organic molecules are self-assembled into high-quality crystalline microrings in evaporating microdroplets. These size-tunable microrings could efficiently confine their fluorescence, and serve as active whispering-gallery-mode resonators with quality factors over 300, providing great possibilities for a series of fundamental components in integrated photonic circuits. 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.