Group III-V semiconductors as promising nonlinear integrated photonic platforms

K Vyas, DHG Espinosa, D Hutama, SK Jain… - … in Physics: X, 2022 - Taylor & Francis
Group III–V semiconductors are based on the elements of groups III and V of the periodic
table. The possibility to grow thin-films made of binary, ternary, and quaternary III–V alloys …

χ(2) nonlinear photonics in integrated microresonators

P Liu, H Wen, L Ren, L Shi, X Zhang - Frontiers of Optoelectronics, 2023 - Springer
Abstract Second-order (χ (2)) optical nonlinearity is one of the most common mechanisms for
modulating and generating coherent light in photonic devices. Due to strong photon …

Low loss GaN waveguides at the visible spectral wavelengths for integrated photonics applications

H Chen, H Fu, X Huang, X Zhang, TH Yang… - Optics express, 2017 - opg.optica.org
We perform comprehensive studies on the fundamental loss mechanisms in III-nitride
waveguides in the visible spectral region. Theoretical analysis shows that free carrier loss …

[HTML][HTML] Broadband nanophotonic waveguides and resonators based on epitaxial GaN thin films

AW Bruch, C **ong, B Leung, M Poot, J Han… - Applied Physics …, 2015 - pubs.aip.org
We demonstrate broadband, low loss optical waveguiding in single crystalline GaN grown
epitaxially on c-plane sapphire wafers through a buffered metal-organic chemical vapor …

GaN directional couplers for integrated quantum photonics

Y Zhang, L McKnight, E Engin, IM Watson… - Applied Physics …, 2011 - pubs.aip.org
Large cross-section GaN waveguides are proposed as a suitable architecture to achieve
integrated quantum photonic circuits. Directional couplers with this geometry have been …

Intrinsic polarity inversion in iii-nitride waveguides for efficient nonlinear interactions

M Gromovyi, N Bhat, H Tronche, P Baldi, MEL Kurdi… - Optics …, 2023 - opg.optica.org
III-nitrides provide a versatile platform for nonlinear photonics. In this work, we explore a new
promising configuration–composite waveguides containing GaN and AlN layers with …

Efficient second harmonic generation in low-loss planar GaN waveguides

M Gromovyi, J Brault, A Courville, S Rennesson… - Optics express, 2017 - opg.optica.org
We demonstrate low-loss GaN/AlGaN planar waveguides grown by molecular beam epitaxy
on sapphire substrates. By using a proper AlGaN cladding layer and reducing surface …

Integration of large-extinction-ratio resonators with grating couplers and waveguides on GaN-on-sapphire at O-band

Y Cai, K Wu, Z Ma, S Zhao, Y Zhang - Optics Express, 2023 - opg.optica.org
Photonic integrated circuits (PICs) based on gallium nitride (GaN) platforms have been
widely explored for various applications at C-band (1530? nm∼ 1565? nm) and visible light …

[HTML][HTML] Advantages of InGaN–GaN–InGaN delta barriers for InGaN-based laser diodes

L Cheng, Z Li, J Zhang, X Lin, D Yang, H Chen, S Wu… - Nanomaterials, 2021 - mdpi.com
An InGaN laser diode with InGaN–GaN–InGaN delta barriers was designed and
investigated numerically. The laser power–current–voltage performance curves, carrier …

[HTML][HTML] Fabrication of gallium nitride waveguide resonators by high-power impulse magnetron sputtering at room temperature

SH Wu, ZG Chen, HS Liu, SH Chen, PH Wang - APL Photonics, 2024 - pubs.aip.org
In this work, we demonstrate gallium nitride (GaN) waveguide resonators by sputtering
amorphous GaN films on the silicon-based substrate. With the aid of high-power impulse …