1. A 271.8 nm deep-ultraviolet laser diode for room temperature operation. (7th November 2019) Authors: Zhang, Ziyi; Kushimoto, Maki; Sakai, Tadayoshi; Sugiyama, Naoharu; Schowalter, Leo J.; Sasaoka, Chiaki; Amano, Hiroshi Journal: Applied physics express Issue: Volume 12:Number 12(2019) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Continuous-wave lasing of AlGaN-based ultraviolet laser diode at 274.8 nm by current injection. (1st April 2022) Authors: Zhang, Ziyi; Kushimoto, Maki; Yoshikawa, Akira; Aoto, Koji; Schowalter, Leo J.; Sasaoka, Chiaki; Amano, Hiroshi Journal: Applied physics express Issue: Volume 15:Number 4(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Impact of heat treatment process on threshold current density in AlGaN-based deep-ultraviolet laser diodes on AlN substrate. (16th April 2021) Authors: Kushimoto, Maki; Zhang, Ziyi; Sugiyama, Naoharu; Honda, Yoshio; Schowalter, Leo J.; Sasaoka, Chiaki; Amano, Hiroshi Journal: Applied physics express Issue: Volume 14:Number 5(2021) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Threshold increase and lasing inhibition due to hexagonal-pyramid-shaped hillocks in AlGaN-based DUV laser diodes on single-crystal AlN substrate. (22nd December 2021) Authors: Kushimoto, Maki; Zhang, Ziyi; Honda, Yoshio; Schowalter, Leo J.; Sasaoka, Chiaki; Amano, Hiroshi Journal: Japanese journal of applied physics Issue: Volume 61:Number 1(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗