This shows how small satellites are becoming more important to military applications.
A satellite defense system based on quantum dot technology
Nanowerk.com, 23 January 2012
[The] Raytheon Company has developed a counter measure system using quantum dots to protect space assets such as satellites from missile attacks. They have developed a decoy consisting of quantum dots of different sizes and shapes that are engineered to emit radiation having a radiation profile similar to that of the asset.