Injection-seeded high-repetition-rate short-pulse micro-laser based on upconversion nanoparticles

• Main Authors: Jiao, Jiannan, Zhou, Donglei, Li, Shufan, Low, Mun Ji, Gao, Yi, An, Jianing, Su, Pei-Chen, Kim, Seung-Woo, Kim, Seungchul, Kim, Kyujung, Suchand Sandeep, Chandramathi Sukumaran, Kim, Young-Jin
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Science::Physics::Optics and light; Engineering::Materials::Photonics and optoelectronics materials; Upconversion Nanoparticles (UCNPs); Whispering-Gallery-Mode (WGM)
• Online Access: https://hdl.handle.net/10356/146476
• Institution: Nanyang Technological University

We demonstrate a high repetition-rate upconversion green pulsed micro-laser, which is prepared by the fast thermal quenching of lanthanide-doped upconversion nanoparticles (UCNPs) via femtosecond-laser direct writing. The outer rim of the prepared upconversion hemi-ellipsoidal microstructure works a...