Massachusetts Institute of Technology

Victor Trinh Nguyen

Lionel Cooper Kimerling

Jurgen Michel

Steven G Johnson

Kazumi Wada

Hermann A Haus

Anuradha Murthy Agarwal

Luca Dal Negro

Christina Manolatou

Yasha Yi

Jae Hyung Yi

A fabrication method and materials produce high quality aperiodic photonic structures. Light emission can be activated by thermal annealing post growth treatments when thin film layers of SiOand SiNor Si-rich oxide are used. From these aperiodic structures, that can be obtained in different vertical and planar device geometries, the presence of aperiodic order in a photonic device provides strong group velocity reduction (slow photons), enhanced light-matter interaction, light emission enhancement, gain enhancement, and/or nonlinear optical properties enhancement.

CMOS-compatible light emitting aperiodic photonic structures

An on-chip silicon-based optical coupler used to guide light from an optical fiber to a waveguide. The incoming wave is confined vertically by stacks of graded index materials. In the lateral direction, a linear taper formed by etched holes or trenches confines the wave.

Vertically and laterally confined 3D optical coupler

Growing community of inventors

Walnut, CA, United States of America

Victor Trinh Nguyen