Abstract
We report the theoretical investigation of an electrically injected plasmonic nanolaser in visible regime. The green nanolaser is based on a hybrid waveguide which employs semiconductor nanowire gain medium to compensate the loss in metallic cavity. Two-dimensional sub-wavelength confinements (mode area about λ 2/100) and net modal gain are simultaneously achieved for quasi-one-dimensional surface plasmon mode supported in such waveguide. The device structure is further optimized for room temperature operation with achievable injected current density about several kilo ampere/square centimetres (kA/cm2). The approach is also beneficial to developing other nanophotonic devices on sub-wavelength scale.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China under Grant Nos. 61076013 and 60990313, and National Basic Research Program of China under Grant No. 2012CB619304.
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We have read and have abided by the statement of ethical standards for manuscripts submitted to Plasmonics: (1) we confirm that this manuscript is original and has not been published elsewhere and is not under consideration by another journal; (2) the authors declare no conflict of interest; and (3) this article does not contain any studies with human participants or animals performed by any of the authors.
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Yang, W., Ji, Q., Zong, H. et al. Theoretical Investigation of Loss-Compensating Hybrid Waveguide Using Quasi-One-Dimensional Surface Plasmon for Green Nanolaser. Plasmonics 11, 159–165 (2016). https://doi.org/10.1007/s11468-015-0001-8
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DOI: https://doi.org/10.1007/s11468-015-0001-8