Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes

CW Berry, N Wang, MR Hashemi, M Unlu… - Nature …, 2013 - nature.com
Even though the terahertz spectrum is well suited for chemical identification, material
characterization, biological sensing and medical imaging, practical development of these …

THz emitters based on the photo-Dember effect

V Apostolopoulos, ME Barnes - Journal of Physics D: Applied …, 2014 - iopscience.iop.org
The photo-Dember effect is a source of pulsed THz emission following femtosecond pulsed
optical excitation. The emission results from the ultrafast spatial separation of electron–hole …

Low-loss and flexible terahertz bandpass frequency selective surface based on cyclic olefin copolymer substrate via solvent-free synthesis

L Cai, ZH Jiang, JB Wu, H Chen, W Hong - Optics Express, 2023 - opg.optica.org
This study investigates a low-loss and flexible terahertz frequency selective surface (FSS)
based on cyclic olefin copolymer (COC) film substrate, which is fabricated via a simple …

Terahertz wave detection performance of photoconductive antennas: Role of antenna structure and gate pulse intensity

R Yano, H Gotoh, Y Hirayama, S Miyashita… - Journal of applied …, 2005 - pubs.aip.org
We studied the receiver performance of two photoconductive antennas (bow tie and dipole
antennas) fabricated on the same low-temperature-grown GaAs substrate to clarify the effect …

A polarization-resolved study of nanopatterned photoconductive antenna for enhanced terahertz emission

G Rana, A Bhattacharya, A Gupta… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Terahertz (THz) frequencies, despite having the potential for several important applications,
have been relatively underexplored in the past owing to the unavailability of proper sources …

Photoconductive emission and detection of terahertz pulsed radiation using semiconductors and semiconductor devices

M Tani, K Yamamoto, ES Estacio, CT Que… - Journal of Infrared …, 2012 - Springer
Recent studies on the techniques and development of photoconductive (PC) semiconductor
devices for efficient generation and detection of terahertz (THz) pulsed radiation are …

Microlensless interdigitated photoconductive terahertz emitters

A Singh, SS Prabhu - Optics Express, 2015 - opg.optica.org
We report here fabrication of interdigitated photoconductive antenna (iPCA) terahertz (THz)
emitters based on plasmonic electrode design. Novel design of this iPCA enables it to work …

Power scaling on efficient generation of ultrafast terahertz pulses

X Mu, IB Zotova, YJ Ding - IEEE Journal of Selected Topics in …, 2008 - ieeexplore.ieee.org
We have investigated power scaling for the efficient generation of the broadband terahertz
(THz) pulses. These THz short pulses are converted from ultrafast laser pulses propagating …

Fluence and polarisation dependence of GaAs based Lateral Photo-Dember terahertz emitters

D McBryde, ME Barnes, SA Berry, P Gow, HE Beere… - Optics express, 2014 - opg.optica.org
We characterise THz output of lateral photo-Dember (LPD) emitters based on semi-
insulating (SI), unannealed and annealed low temperature grown (LTG) GaAs. Saturation of …

Plasmonic efficiency enhancement at the anode of strip line photoconductive terahertz emitters

A Singh, S Winnerl, JC Koenig-Otto, DR Stephan… - Optics …, 2016 - opg.optica.org
We investigate strip line photoconductive terahertz (THz) emitters in a regime where both the
direct emission of accelerated carriers in the semiconductor and the antenna-mediated …