Two photons pumped up conversion lasing.

• Main Author: Chou, Kok Loong.
• Other Authors: Sum Tze Chien
• Format: Final Year Project
• Language: English
• Published: 2012
• Subjects: DRNTU::Science
• Online Access: http://hdl.handle.net/10356/49470
• Institution: Nanyang Technological University

Low threshold 2ASE and 2PALasing in CdSe/CdS core/shell heterostrucures have been demonstrated for the first time. With the 2PA cross-section σ2 can be controlled by the CdS shell and the PL spectrum controlled by the CdSe core, we demonstrated a 2ASE with a ultralow threshold fluence of ~1.5µJ/cm2....