The Photonic Side of Curcumin: Microsphere Resonators Self‐Assembled from Curcumin Derivatives Emitting Visible/Near‐Infrared Light

A cost-effective, large surface area (>200 µm2) self-assembly of curcumin (CURM) and its boron complex (CURM-BF) into amorphous phase photonic microparticles is presented. Upon visible laser excitation, both CURM and CURM-BF particles display whispering-gallery resonance in the visible and near-infrared range, respectively, with a remarkable quality factors (Q). Flourescence lifetime imaging microscopy studies show resonator particle size-dependent decay lifetime values. 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.