Whispering-gallery-mode microlaser based on self-assembled organic single-crystalline hexagonal microdisks.
Whispering-gallery-mode (WGM) resonators of semiconductor microdisks have been applied for achieving low-threshold and narrow-linewidth microlasers, but require sophisticated top-down processing technology. Organic single-crystalline hexagonal microdisks (HMDs) of p-distyrylbenzene (DSB) self-assembled from solution can function as WGM microresonators with a cavity quality factor (Q) of 210. Both multiple- and single-mode lasing had been achieved using DSB HMDs with an edge length of 4.3 and 1.2 μm, respectively. These organic microdisks fabricated by bottom-up self-assembly approach may offer potential applications as low-threshold microlaser sources for photonic circuit integration.
Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China); Graduate University of Chinese Academy of Sciences, Beijing 100049 (P.R. China).
Xuedong
X
Wang
Qing
Q
Liao
Qinghua
Q
Kong
Yi
Y
Zhang
Zhenzhen
Z
Xu
Xiaomei
X
Lu
Hongbing
H
Fu
microdisk laser; nanophotonics; organic nanostructures; self-assembly; whispering-gallery mode