"Integrated Nanophotonics in Silicon"

Michael Hochberg, Assistant Professor, Electrical Engineering, University of Washington

March 10th (Thursday), 11:00am
Harold Frank Hall (HFH), Rm 4164

CMOS-compatible silicon is not an obvious material system for building high-performance optical devices. But, over the last ten years, it has become possible to build fairly complex integrated optical systems at telecommunications wavelengths on electronics-compatible silicon substrates. In fact, over the last few years, the complexity of these systems has been approximately doubling every year, and this trend is projected to continue for at least the next several years.

With a combination of CMOS electronics and photonics in the same chip, we can gain control of both photons and electrons, while preserving the powerful economics of the VLSI revolution. Furthermore, silicon waveguides can be engineered for low optical loss and high cladding overlap, while preserving nano-scale modal areas: As a result, it is possible to add a variety of cladding materials in order to bring new functionality into the silicon system: For instance, highly nonlinear engineered organic claddings can be added to silicon waveguides in order to create ultrafast nonlinear devices.

This talk will review of the Nanophotonics Group’s recent work in chip-scale nonlinear optics, while providing a brief overview of our other projects in biosensing, optomechanics, and mid-infrared photonics. There will also be a discussion of the OPSIS project, which is a new initiative aimed at creating an open foundry and associated infrastructure for building fully integrated optoelectronic devices and systems in silicon.

Nanophontonics Lab:

OpSIS webpage:

About Michael Hochberg:

Michael Hochberg is an Assistant Professor in Electrical Engineering at the University of Washington. He received his BS (Physics, 2002), his MS (Applied Physics, 2005) and his PhD (Applied Physics, 2006) from Caltech, and he was awarded the Demetriades-Tsafka Prize in Nanotechnology for the best dissertation by a graduating Ph.D. student in the field of Nanotechnology. As a graduate student, he worked on developing integrated nonlinear optical devices using silicon photonics. He was also the recipient of an NSF Graduate Research Fellowship and, as an undergraduate, of a merit-based fellowship from Caltech. As an undergraduate, Hochberg co-founded two companies: Simulant, which sold the first commercial distributed FDTD code, and Luxtera, a venture-funded company working to commercialize silicon photonics, where he worked between undergraduate and graduate school. He is a member of the faculty at the University of Washington, where he was the recipient of a 2007 Air Force Office of Sponsored Research Young Investigators Program award, as well as a Presidential Early Career Award in Science and Engineering (PECASE) in 2009.

Hosted by: Professor John Bowers