On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908395548704768 |
|---|---|
| author | Yoshioka, Katsumasa Bernard, Guillaume Wakamura, Taro Hashisaka, Masayuki Sasaki, Ken-ichi Sasaki, Satoshi Watanabe, Kenji Taniguchi, Takashi Kumada, Norio |
| author_facet | Yoshioka, Katsumasa Bernard, Guillaume Wakamura, Taro Hashisaka, Masayuki Sasaki, Ken-ichi Sasaki, Satoshi Watanabe, Kenji Taniguchi, Takashi Kumada, Norio |
| contents | Steering transport of ultrashort polariton wavepackets is essential for achieving on-chip integrated nanocircuits with tightly confined electromagnetic fields towards ultrafast information processing. However, conventional optical techniques have struggled to integrate the necessary components for transferring polariton signals. Here, we address this challenge by electrically generating, manipulating, and reading out terahertz graphene plasmon-polariton wavepackets on-chip. By injecting an electrical pulse into graphene via an ohmic contact, we achieve coherent conversion of the pulse into a plasmon wavepacket exhibiting a pulse duration of 1.2 ps and extreme three-dimensional spatial confinement within a volume of $2.1 \times 10^{-18} m^3$. We reveal the transport properties of plasmons along graphene ribbons in different dielectric environments, providing a basis for designing graphene plasmonic circuits. Furthermore, we find that the conversion efficiency between the electrical pulses and plasmon wavepackets reaches ~30% thanks to the absence of a momentum mismatch. With unprecedented controllability, our platform represents a significant advance in on-chip handling of plasmonic signals in various van der Waals heterostructures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_02821 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics Yoshioka, Katsumasa Bernard, Guillaume Wakamura, Taro Hashisaka, Masayuki Sasaki, Ken-ichi Sasaki, Satoshi Watanabe, Kenji Taniguchi, Takashi Kumada, Norio Mesoscale and Nanoscale Physics Materials Science Applied Physics Optics Steering transport of ultrashort polariton wavepackets is essential for achieving on-chip integrated nanocircuits with tightly confined electromagnetic fields towards ultrafast information processing. However, conventional optical techniques have struggled to integrate the necessary components for transferring polariton signals. Here, we address this challenge by electrically generating, manipulating, and reading out terahertz graphene plasmon-polariton wavepackets on-chip. By injecting an electrical pulse into graphene via an ohmic contact, we achieve coherent conversion of the pulse into a plasmon wavepacket exhibiting a pulse duration of 1.2 ps and extreme three-dimensional spatial confinement within a volume of $2.1 \times 10^{-18} m^3$. We reveal the transport properties of plasmons along graphene ribbons in different dielectric environments, providing a basis for designing graphene plasmonic circuits. Furthermore, we find that the conversion efficiency between the electrical pulses and plasmon wavepackets reaches ~30% thanks to the absence of a momentum mismatch. With unprecedented controllability, our platform represents a significant advance in on-chip handling of plasmonic signals in various van der Waals heterostructures. |
| title | On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics |
| topic | Mesoscale and Nanoscale Physics Materials Science Applied Physics Optics |
| url | https://arxiv.org/abs/2311.02821 |