Faculty

Lionel C. Kimerling

 

Disciplines

Research

Prof. Kimerling's research activities address the fundamental science of imperfection in solids and the processing of electronic materials. All his programs include an emphasis on both materials science and applications. His MIT research on silicon processing has addressed photovoltaic cells environmentally benign integrated circuit manufacturing. Among the achievements of this research are the creation of a process simulator for wafer contamination gettering; development of a new ultrasensitive measurement for silicon surface perfection; the discovery of a surface passivation method for the reduction of cleaning steps in manufacturing; and the development of in-situ diagnostic tools for wet chemical process control. His group’s Microphotonics research has produced a series of first ever achievements with the goal of monolithic integration of optical interconnection with integrated microelectronic circuit chips. The research has developed submicron dimensioned optical structures by employing materials systems with high refractive index contrast for confining light. His research results in this area include the optoelectronic physics and materials processing of rare earth-doped semiconductors culminating in the first room temperature operational, erbium-doped silicon light emitting diode; the monolithic integration of MOSFET driver circuitry with Si:Er LEDs and Si/SiO2 waveguides; the process development silicon optical waveguides to yield low loss microphotonic signal distribution; the fabrication and demonstration of the first waveguide-integrated microcavity resonators based on photonic crystal designs at a wavelength of 1.54 microns; the fabrication and demonstration of optical add/drop microphotonic circuits for high capacity WDM data distribution based on microring resonator filter junctions; and the process development and testing of high performance, heteroepitaxial Ge-on-Si photodetectors for microphotonic applications.

Selected Publications

R. E. Camacho-Aguilera, Y. Cai, N. Patel, J. T. Bessette, M. Romagnoli, L. C. Kimerling and J. Michel, “An Electrically Pumped Germanium Laser,” Optics Express, 20, 10 (2012).

Xing Sheng, Jifeng Liu, Inna Kozinsky, Anuradha M. Agarwal, Jurgen Michel, Lionel C. Kimerling, Design and Non-Lithographic Fabrication of Light Trapping Structures for Thin Film Silicon Solar Cells, Advanced Materials 23, 843 (2011).

D. Ahn, L. C. Kimerling and J. Michel, Efficient Evanescent Wave Coupling Conditions for Waveguide-Integrated Thin-Film Si/Ge Photodetectors on Silicon-on-Insulator/Germanium-on-Insulator Substrates, Journal of Applied Physics, 110, 8 (2011).

L. Bi, J. Hu, P. Jiang, D. H. Kim, G. F. Dionne, L. C. Kimerling and C. A. Ross, On-Chip Optical Isolation in Monolithically Integrated Non-Reciprocal Optical Resonators, Nature Photonics, 5, 12 (2011).

Lionel C. Kimerling, Monolithic Microphotonic Integration on the Silicon Platform, ECS Trans. 41, 3 (2011).

Kevin A. McComber, Xiaoman Duan, Jifeng Liu, Jurgen Michel, Lionel C. Kimerling, Single-Crystal Germanium Growth on Amorphous Silicon, Advanced Functional Materials, 10, 1002 (2011).

A. Canciamilla, S. Grillanda, F. Morichetti, C. Ferrari, J. Hu, J. D. Musgraves, K. Richardson, A. Agarwal, L. C. Kimerling and A. Melloni, Photo-Induced Trimming of Coupled Ring-Resonator Filters and Delay Lines in As(2)S(3) Chalcogenide Glass, Optics Letters, 36, 20 (2011).

X. Sheng, L. Z. Broderick, J. Hu, L. Yang, A. Eshed, E. A. Fitzgerald, J. Michel and L. C. Kimerling, Design and Fabrication of High-Index-Contrast Self-Assembled Texture for Light Extraction Enhancement in LEDs, Optics Express, 19, 14 (2011).

X. Sheng, J. Liu, I. Kozinsky, A. M. Agarwal, J. Michel and L. C. Kimerling, Design and Non-Lithographic Fabrication of Light Trapping Structures for Thin Film Silicon Solar Cells, Advanced Materials, 23, 7 (2011).

J. Wang, J. Hu, P. Becla, A. M. Agarwal and L. C. Kimerling, Room-Temperature Oxygen Sensitization in Highly Textured, Nanocrystalline PbTe Films: A Mechanistic Study, Journal of Applied Physics, 110, 8 (2011).

J.F. Liu, X.C. Sun, R. Camacho-Aguilera, L.C. Kimerling, and J. Michel, "Ge-on-Si Laser Operating at Room Temperature," Optics Letters, 35 5 (2010).

J. Michel, J.F. Liu, and L.C. Kimerling, "High-Performance Ge-on-Si Photodetectors," Nature Photonics, 4 8 (2010).

Related News

Faster computer chips
Wired mentions Professor Kimerling's work with germanium lasers in this article on HP's laser-powered chips.
March 7, 2012
Microchips’ optical future
To keep energy consumption under control, future chips may need to move data using light instead of electricity — and the technical expertise to build them may reside in the United States.
February 15, 2012
Step toward computing with light November 28, 2011
Kimerling group develops germanium lasers
Prof. Lionel Kimerling and his colleagues have developed a new technique that may speed up data transfer.
March 15, 2010
Kimerling group develops germanium laser
New results from the Electronic Materials Research Group bring us closer to computers that use light instead of electricity to move data.
February 4, 2010