Abstract

Lasers based on monolayer (ML) transition-metal dichalcogenide semiconductor crystals have the potential for low threshold operation and a small device footprint; however, nanophotonic engineering is required to maximize the interaction between the optical fields and the three-atom-thick gain medium. Here, we develop a theoretical model to design a direct bandgap optically pumped nanophotonic integrated laser. Our device utilizes a gap-surface-plasmon optical mode to achieve subwavelength optical confinement and consists of a high-index GaP nanowire atop an ML MoS2 film on an Ag substrate. The optical field and material medium are analyzed using a three dimensional finite-difference time-domain method and a first-principles calculation based on the density functional theory, respectively. The nanolaser is designed to have a threshold of 0.6  μW under quasi-continuous wave operation on an excitonic transition at room temperature.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Hybrid coupling enhances photoluminescence of monolayer MoS2 on plasmonic nanostructures

Wen-Bo Shi, Lei Zhang, Di Wang, Rui-Li Zhang, Yingying Zhu, Li-Heng Zhang, Ruwen Peng, Wenzhong Bao, Ren-Hao Fan, and Mu Wang
Opt. Lett. 43(17) 4128-4131 (2018)

Improving the luminescence enhancement of hybrid Au nanoparticle-monolayer MoS2 by focusing radially-polarized beams

Di Liu, Le Yu, Xiao Xiong, Lei Yang, Yan Li, Ming Li, Hai-Ou Li, Gang Cao, Ming Xiao, Bin Xiang, Chang-jun Min, Guang-Can Guo, Xi-Feng Ren, and Guo-Ping Guo
Opt. Express 24(24) 27554-27562 (2016)

Nanophotonics with 2D transition metal dichalcogenides [Invited]

Alex Krasnok, Sergey Lepeshov, and Andrea Alú
Opt. Express 26(12) 15972-15994 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription