Luminescence of Colloidal Quantum Dots in The Mid-Infrared and Beyond, and Implications for Detectors and Emitters

This talk will discuss the challenges and motivations to create bright colloidal quantum dots in the mid-infrared and beyond. At all infrared wavelengths, colloidal quantum dots show enormously superior luminescence compared to organic dyes, by many orders of magnitude in the short-wave infrared. However, this talk will show that the luminescence of colloidal quantum dots is still very poor in the mid-infrared and beyond. The possible reasons will then be described, as well as some tentatives to improve the situation. Then the applications of quantum dots to detectors and emitters, in the mid-infrared and beyond, will be presented, emphasizing the connection to the challenge of luminescence.