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Title: Multicolor lasing prints
Authors: Ta, Van Duong
Yang, Shancheng
Wang, Yue
Gao, Yuan
He, Tingchao
Chen, Rui
Demir, Hilmi Volkan
Sun, Handong
Keywords: Physics and Applied Physics
Issue Date: 2015
Source: Ta, V. D., Yang, S., Wang, Y., Gao, Y., He, T., Chen, R., et al. (2015). Multicolor lasing prints. Applied Physics Letters, 107(22), 221103-.
Series/Report no.: Applied Physics Letters
Abstract: This work demonstrates mass production of printable multi-color lasing microarrays based on uniform hemispherical microcavities on a distributed Bragg reflector using inkjet technique. By embedding two different organic dyes into these prints, optically pumped whispering gallery mode microlasers with lasing wavelengths in green and red spectral ranges are realized. The spectral linewidth of the lasing modes is found as narrow as 0.11 nm. Interestingly, dual-color lasing emission in the ranges of 515–535 nm and 585–605 nm is simultaneously achieved by using two different dyes with certain ratios. Spectroscopic measurements elucidate the energy transfer process from the green dye (donor) to the red one (acceptor) with an energy transfer efficiency up to 80% in which the nonradiative Förster resonance energy transfer dominates. As such, the acceptor lasing in the presence of donor exhibits a significantly lower (∼2.5-fold) threshold compared with that of the pure acceptor lasing with the same concentration.
ISSN: 0003-6951
DOI: 10.1063/1.4936628
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: © 2015 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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