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1. 

   Muhammad Usman

   Muhammad Usman was graduated from the Electrical & Computer Engineering Department of Purdue University in August 2010. His PhD thesis was theoretical modelling and simulations of InGaAs/GaAs...

   https://nanohub.org/members/9702

2. Polarization Response of Multi-layer InAs Quantum Dot Stacks

   25 Oct 2011 | Contributor(s):: Muhammad Usman

   Recent experimental measurements, without any theoretical guidance, showed that isotropic polarization response can be achieved by increasing the number of QD layers in a QD stack. In this work, we analyse the polarization response of multi-layer quantum dot stacks containing up to nine quantum...

3. Quantum Dot based Photonic Devices

   01 Apr 2012 | | Contributor(s):: Muhammad Usman

   Deployment of nanometer-sized semiconductor quantum dots (QDs) in the active region ofphotonic devices such as lasers, semiconductor optical amplifiers (SOA's), photo-detectors etc.for the next generation communication systems offers unique characteristics such astemperature-insensitivity, high...