Spindle‐Type Conjugated Compounds Containing Twistacene Unit: Synthesis and Ultrafast Broadband Reverse Saturable Absorption

Ultra-broadband reversed saturable absorption (RSA) is achieved in a spindle-type compound containing twistacene. This capability is verified by experiments and is found to be applicable for various laser pulses from femtoseconds to nanoseconds. With a mechanism interpreted and validated by a theoretical model, this finding provides a new perspective in synthesizing novel broadband optical limiting material. 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.