Controlled assembly of organic whispering-gallery-mode microlasers as highly sensitive chemical vapor sensors

• Published in: Chemical communications (Cambridge, England) Vol. 53; no. 21; pp. 3102 - 3105
• Main Authors: Gao, Miaomiao, Wei, Cong, Lin, Xianqing, Liu, Yuan, Hu, Fengqin, Zhao, Yong Sheng
• Format: Journal Article
• Language: English
• Published: England 09.03.2017
• Subjects: Assembly; chemical reactions; detection limit; Gain; lasers; Lasing; Microlasers; Monitoring; Optical sensors; polymers; Reproducibility; Strategy; vapors

We demonstrate the fabrication of organic high Q active whispering-gallery-mode (WGM) resonators from π-conjugated polymer by a controlled emulsion-solvent-evaporation method, which can simultaneously provide optical gain and act as an effective resonant cavity. By measuring the shift of their lasin...