Enabling enhanced emission and low-threshold lasing of organic molecules using special Fano resonances of macroscopic photonic crystals
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Author(s)
Zhen, Bo
Chua, Song Liang
Lee, Jeongwon
Rodriguez, Alejandro
Liang, Xiangdong
Johnson, Steven G
Joannopoulos, John
Soljacic, Marin
Shapira, Ofer
Date Issued
August 2013
Journal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Zhen, Bo et al. “Enabling Enhanced Emission and Low-Threshold Lasing of Organic Molecules Using Special Fano Resonances of Macroscopic Photonic Crystals.” Proceedings of the National Academy of Sciences 110, 34 (August 2013): 13711–13716 © 2013 National Academy of Sciences
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Final published version
Abstract
The nature of light interaction with matter can be dramatically altered in optical cavities, often inducing nonclassical behavior. In solid-state systems, excitons need to be spatially incorporated within nanostructured cavities to achieve such behavior. Although fascinating phenomena have been observed with inorganic nanostructures, the incorporation of organic molecules into the typically inorganic cavity is more challenging. Here,we present a unique optofluidic platform comprising organic molecules in solution suspended on a photonic crystal surface, which supports macroscopic Fano resonances and allows strong and tunable interactions with the molecules anywhere along the surface. We develop a theoretical framework of this system and present a rigorous comparison with experimental measurements, showing dramatic spectral and angular enhancement of emission. We then demonstrate tha t these enhancement mechanisms enable lasing of only a 100-nm thin layer of diluted solution of organic molecules with substantially reduced threshold intensity, which has important implications for organic light-emitting devices and molecular sensing. Keywords: flourescence enhancement; enhanced light-matter interaction
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1073/PNAS.1311866110
