Surface-emitting red, green, and blue colloidal quantum dot distributed feedback lasers

• Main Authors: Roh, Kwangdong, Dang, Cuong, Lee, Joonhee, Chen, Songtao, Steckel, Jonathan S., Coe-Sullivan, Seth, Nurmikko, Arto
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/79677; http://hdl.handle.net/10220/20393
• Institution: Nanyang Technological University

We demonstrate surface emitting distributed feedback (DFB) lasers across the red, green, and blue from densely packed colloidal quantum dot (CQD) films. The solid CQD films were deposited on periodic grating patterns to enable 2nd-order DFB lasing action at mere 120, 280, and 330 μJ/cm2 of optical p...