Engineering the Self‐Assembly of DCM Dyes into Whispering‐Gallery‐Mode μ‐Hemispheres and Fabry–Pèrot‐Type μ‐Rods for Visible–NIR (600–875 nm) Range Optical Microcavities

A simple self-assembly technique is presented to engineer two structurally different optical resonators from red emitting DCM dye molecule via simple concentration variation. The resultant 0D μ-hemispheres and 1D elongated μ-rods act as whispering-gallery and Fabry–Pèrot-type resonators. The quality factors (Q) are in the range of ≈3.5–7.2 × 102, which are very high for a DCM dye in the J-aggregated state. 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.