Ultralow-threshold two-photon pumped amplified spontaneous emission and lasing from seeded CdSe/CdS nanorod heterostructures

• Main Authors: Xing, Guichuan, Liao, Yile, Wu, Xiangyang, Chakrabortty, Sabyasachi, Liu, Xinfeng, Yeow, Edwin Kok Lee, Sum, Tze Chien, Chan, Yinthai
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Science::Mathematics::Discrete mathematics::Theory of computation
• Online Access: https://hdl.handle.net/10356/95297; http://hdl.handle.net/10220/8936
• Institution: Nanyang Technological University

Ultralow threshold two-photon pumped amplified spontaneous emission (2ASE) and lasing in seeded CdSe/CdS nanodot/nanorod heterostructures is demonstrated for the first time. Such heterostructures allow the independent tunability of the two-photon absorption (2PA) cross-section (σ2) through varying t...