Light-emitting devices based on top-down fabricated GaAs quantum nanodisks

A Higo, T Kiba, Y Tamura, C Thomas, J Takayama… - Scientific reports, 2015 - nature.com
Quantum dots photonic devices based on the III–V compound semiconductor technology
offer low power consumption, temperature stability and high-speed modulation. We …

Quantum size effects in GaAs nanodisks fabricated using a combination of the bio-template technique and neutral beam etching

Y Tamura, T Kaizu, T Kiba, M Igarashi… - …, 2013 - iopscience.iop.org
We successfully fabricated defect-free, distributed and sub-20-nm GaAs quantum dots
(named GaAs nanodisks (NDs)) by using a novel top-down technique that combines a new …

Oxidation states of GaAs surface and their effects on neutral beam etching during nanopillar fabrication

C Thomas, Y Tamura, ME Syazwan… - Journal of Physics D …, 2014 - iopscience.iop.org
We have investigated a new process for fabricating GaAs sub-20 nm nanopillars that uses a
top–down combination of a bio-template and damage-free neutral beam etching. A two …

Photoluminescence from GaAs nanodisks fabricated by using combination of neutral beam etching and atomic hydrogen-assisted molecular beam epitaxy regrowth

T Kaizu, Y Tamura, M Igarashi, W Hu… - Applied Physics …, 2012 - pubs.aip.org
We have fabricated GaAs nanodisk (ND) structures by using a combination of neutral beam
etching process and atomic hydrogen-assisted molecular beam epitaxy regrowth. We have …

Record high-aspect-ratio GaAs nano-grating lines grown by Hydride Vapor Phase Epitaxy (HVPE)

E Gil, Y André, MR Ramdani, C Fontaine… - Journal of crystal …, 2013 - Elsevier
Nanometric-width GaAs grating lines showing high aspect (height/width) ratio of up to 30,
without roughness or shape deviation are reported. They were obtained by HVPE …

Photoluminescence emission from GaAs nanodisks in GaAs/AlGaAs nanopillar arrays fabricated by neutral beam etching

D Ohori, A Fukuyama, K Sakai, A Higo… - Japanese Journal of …, 2017 - iopscience.iop.org
GaAs quantum nanodisks (QNDs) in nanopillar (NP) arrays are considered to be an
attractive candidate for photonic device applications. We report a damageless fabrication …

Photoluminescence of InGaAs/GaAs quantum nanodisk in pillar fabricated by biotemplate, dry etching, and MOVPE regrowth

A Higo, T Kiba, J Takayama, CY Lee… - ACS Applied …, 2019 - ACS Publications
The III–V compound semiconductor quantum dot (QD) photonic devices have attracted
considerable attention due to their stable operation at high temperature, low threshold …

Biotemplating process for 3D structured materials

K Kamata, Z Piao, T IyodaTokyo - … Polymer Science and …, 2014 - journals.sagepub.com
Should explanation be needed, the materials fabrica tion process known as biotemplating is
a means of fashioning a functional material from a template of one of those baffling, ordered …

[HTML][HTML] Impact of artificial lateral quantum confinement on exciton-spin relaxation in a two-dimensional GaAs electronic system

T Kiba, T Tanaka, Y Tamura, A Higo, C Thomas… - AIP Advances, 2014 - pubs.aip.org
We demonstrate the effect of artificial lateral quantum confinement on exciton-spin relaxation
in a GaAs electronic system. GaAs nanodisks (NDs) were fabricated from a quantum well …

Optical properties of quantum energies in GaAs quantum nanodisks produced using a bio-nanotemplate and a neutral beam etching technique

D Ohori, A Fukuyama, C Thomas, A Higo… - Japanese Journal of …, 2016 - iopscience.iop.org
We demonstrated that the lattice-matched GaAs quantum nanodisks (QNDs) embedded in
an AlGaAs matrix were fabricated by our original top-down nanoprocess. Lattice-matched …