We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Low-Threshold Wavelength-Switchable Organic Nanowire Lasers Based on Excited-State Intramolecular Proton Transfer.
- Authors
Zhang, Wei; Yan, Yongli; Gu, Jianmin; Yao, Jiannian; Zhao, Yong Sheng
- Abstract
Coherent light signals generated at the nanoscale are crucial to the realization of photonic integrated circuits. Self-assembled nanowires from organic dyes can provide both a gain medium and an effective resonant cavity, which have been utilized for fulfilling miniaturized lasers. Excited-state intramolecular proton transfer (ESIPT), a classical molecular photoisomerization process, can be used to build a typical four-level system, which is more favorable for population inversion. Low-power driven lasing in proton-transfer molecular nanowires with an optimized ESIPT energy-level process has been achieved. With high gain and low loss from the ESIPT, the wires can be applied as effective FP-type resonators, which generated single-mode lasing with a very low threshold. The lasing wavelength can be reversibly switched based on a conformation conversion of the excited keto form in the ESIPT process.
- Subjects
SPECTROSCOPIC light sources; LIGHT amplifiers; LASERS; OPTICAL materials; SYNTHESIS of nanowires; SOURCES of coherent radiation; PROTON transfer reaction kinetics
- Publication
Angewandte Chemie International Edition, 2015, Vol 54, Issue 24, p7125
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201502684