2D semiconductor nonlinear plasmonic modulators
Journal Article
·
· Nature Communications
- Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics; Univ. of Arizona, Tucson, AZ (United States). College of Optical Sciences; DOE/OSTI
- Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics
- Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics; Univ. of Arizona, Tucson, AZ (United States). College of Optical Sciences
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; National Inst. for Materials Science (NIMS), Tsukuba (Japan)
- National Inst. for Materials Science (NIMS), Tsukuba (Japan)
A plasmonic modulator is a device that controls the amplitude or phase of propagating plasmons. In a pure plasmonic modulator, the presence or absence of a plasmonic pump wave controls the amplitude of a plasmonic probe wave through a channel. This control has to be mediated by an interaction between disparate plasmonic waves, typically requiring the integration of a nonlinear material. In this work, we demonstrate a 2D semiconductor nonlinear plasmonic modulator based on a WSe2 monolayer integrated on top of a lithographically defined metallic waveguide. We utilize the strong interaction between the surface plasmon polaritons (SPPs) and excitons in the WSe2 to give a 73 % change in transmission through the device. We demonstrate control of the propagating SPPs using both optical and SPP pumps, realizing a 2D semiconductor nonlinear plasmonic modulator, with an ultrafast response time of 290 fs.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1624175
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 10; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Efficient All‐Optical Plasmonic Modulators with Atomically Thin Van Der Waals Heterostructures
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journal | February 2020 |
All-optical modulation with 2D layered materials: status and prospects
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journal | February 2020 |
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