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

Novel GaAs-Based, MBE-Grown Materials for THz Photoconductive Antenna Emitter Research at the University of the Philippines

Not Accessible

Your library or personal account may give you access

Abstract

We report on the continuing efforts of the National Institute of Physics, University of the Philippines, in the design, growth, and fabrication of novel structures for THz photoconductive antennas (PCA’s) [1-3]. In particular, the talk presents recent works on the molecular beam epitaxial growth of gallium arsenide-based semiconductor trilayer films and modulation-doped heterostructures (MDH) as substrates for THz PCA emitter’s [1,2]. The improvement of these novel substrates on the performance of the emitters are primarily attributed to the surface/interface electric field modification for the trilayer design; as well as an increase in the carrier mobility for the MDH design. Additionally, work is also being undertaken on the surface modification of the PCA’s [3]. Initial results on the adsorption of Si nanowires on the PCA gap to improve THz generation will also be presented; as well recent work on the incorporation of micron-size metal line arrays on the emission side of the PCA. Being relatively large, these metal line arrays do not require electron beam lithography that are commonly employed in metamaterial enhanced PCA’s. These research activities are carried out in collaboration with the FIR Center, University of Fukui, Japan.

© 2021 Japan Society of Applied Physics, The Optical Society (OSA)

PDF Article
More Like This
MBE grown InN: A novel THz emitter

Ricardo Ascázubi, Ingrid Wilke, Hai Lu, and William J. Schaff
MC6 Optical Terahertz Science and Technology (OTST) 2005

Photoconductivity of an InAs/GaAs self-assembled quantum dot photoconductive THz antenna

Amit Yadav, Andrei Gorodetsky, Eugene Avrutin, Ksenia A. Fedorova, and Edik U. Rafailov
CE_5_5 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2017

Be-doping assessment in Self-Catalyzed MBE Grown GaAs Nanowires

Priyanka Ramaswamy, Rabin Pokharel, Mehul Parakh, Keith Jones, Jia Li, and Shanthi Iyer
SW2F.7 CLEO: Science and Innovations (CLEO:S&I) 2021

Select as filters


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