The Japan Society of Applied Physics

2022 International Conference on Solid State Devices and Materials

2022 International Conference on Solid State Devices and Materials

Sep 26, 2022 - Dec 23, 2022
Makuhari Messe

3:15 PM - 3:30 PM

[A-6-08] Development of Epitaxial Regrowth for GaAs-Based Quantum Dot PCSELs

〇Adam F McKenzie1, Aye M. Kyaw1, Ben C. King1, Neil D. Gerrard1, Kenichi Nishi2, Keizo Takemasa2, Mitsuru Sugawara2, Calum H. Hill3, David T. D. Childs3, Richard J. E. Taylor3, Donald A. MacLaren1, Richard A. Hogg1 (1. Univ. of Glasgow (UK), 2. QD Laser Inc. (Japan), 3. Vector Photonics Ltd. (UK))

Presentation style: Online

https://doi.org/10.7567/SSDM.2022.A-6-08

We present the development of epitaxial regrowth processes to allow the realization of a PCSEL utilizing a quantum dot active region. An electron microscope-based study investigates the effect of group-III surface mobility on grating infill. An optimal process utilizing AlGaAs in-fill is used to fabricate QD devices that display room temperature ground state lasing at 1230 nm.