2022 International Conference on Solid State Devices and Materials

講演情報

Oral Presentation

08: Low Dimensional Devices and Materials

[H-1] Characterization I: Low Dimensional Devices and Materials

2022年9月27日(火) 11:30 〜 12:30 302 (3F)

Session Chair: Takayuki Arie (Osaka Metropolitan Univ.), Reina Kaji (Hokkaido Univ.)

11:30 〜 11:45

[H-1-01] Generation of Hollow Beam from GaAs/InGaAs/GaAs Core-multishell Nanowire Cavity

〇Taiga Kunimoto1,2, Shinjiro Hara1,2, Junichi Motohisa1,2 (1. Graduate School of Info. Sci. and Tech., Hokkaido Univ. (Japan), 2. Res. Center for Integrated Quantum Electronics (RCIQE) (Japan))

Presentation style: On-site (in-person)

https://doi.org/10.7567/SSDM.2022.H-1-01

We characterized the beam profiles and polarization states in low-temperature photoluminescence (PL) from a GaAs/InGaAs/GaAs core-multishell nanowire (NW) under CW and pulsed excitations. In the beam profile observation under pulsed excitation, we observed a doughnut-shaped intensity distribution. The beam was also shown to exhibit an axisymmetric distribution in the polarization. These observations indicate that vector beams are generated from the NW. Observed polarization do not correspond to low-order modes of vector beams, suggesting the presence of complicated polarized states reflecting the cavity modes in NWs.

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