Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Terahertz radiation enhancement in photoconductive antennas with embedded split-ring resonators

Not Accessible

Your library or personal account may give you access

Abstract

This Letter proposes a novel method for enhancing terahertz (THz) radiation from microstructure photoconductive antennas (MSPCA). We present two types of MSPCA, which contain split-ring resonators (SRRs) and dipole photoconductive antennas (D-PCAs). The experimental results reveal that when the femtosecond laser is pumping onto the split position of the SRR, the maximum THz radiation power is enhanced by 92 times compared to pumping at the electrode edge of the D-PCA. Two π phase shifts occur as the pumping laser propagates from the negative electrode to the positive electrode. Analysis shows that photoinduced carrier charges move within the split position of the SRR.

© 2020 Chinese Laser Press

PDF Article
More Like This
Metamaterial terahertz switch based on split-ring resonator embedded with photoconductive silicon

Xinwang Liu, Hongjun Liu, Qibing Sun, and Nan Huang
Appl. Opt. 54(11) 3478-3483 (2015)

Increase in terahertz radiation power of plasmonic photoconductive antennas by embedding buried three-stepped rods in electrodes

Mohammadreza Khorshidi, Sajad Zafari, and Gholamreza Dadashzadeh
Opt. Express 27(16) 22327-22338 (2019)

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 Optica member, or as an authorized user of your institution.

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved