Physical Optics and Electronics Group
Prof. Rajeev Ram

We invent new optoelectronic devices to solve problems in communications, energy, and bioengineering. Our research focuses on the boundary of systems and device physics. The systems drive the need for creative solutions and validate the utility of our scientific work.


A technique to incorporate photonic integration in any advanced CMOS technology was reported by Amir Atabaki in Nature. This work follows our earlier demonstration of the first microprocessor with an optical network that was also reported in Nature. This demonstration marks the culmination of a decade of work started at MIT and continued through collaborations at Berkeley and the University of Colorado at Boulder.


A microbioreactor was used to control synthetic gene networks engineered in yeast. The flexibility of this platform was demonstrated through the switchable production of two different therapeutic proteins (interferon and human growth hormone). The experiments were performed by Ningren Han in close collaboration with Pablo Perez-Pinera in Tim Lu’s Group and reported in Nature Communications.


The first integrated photonic platform for trapped ion quantum computing was reported in Nature Nanotechnology. This is the first element of a scalable architecture for integrated trapped ion quantum computing developed by Karan Mehta.