Advances in Amorphous Silicon Integrated Photonics Science and Technology

Abstract

Over the past few years we have been developing a scientific basis for amorphous silicon-based integrated photonics technology. Waveguides using hydrogen-implanted, optically-smooth, hot-wire-deposited films have been prepared and demonstrated, and structures were characterized by Raman spectroscopy of the implanted and the non-implanted regions of the waveguide samples. The analysis is consistent with greater disorder in the film structure induced through implantation. More recently, materials prepared by femtosecond laser ablation of silicon powder have been characterized by Raman spectroscopy indicating a structure having both amorphous and crystalline components. As amorphous silicon photonics continues to evolve, the patterning of materials of differing crystallinity may become an issue of interest.

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Acknowledgments

We thank John Coleman, President, Plasma Physics Corp. and Canon Corp. for partial support of this work. We thank Prof. Thomas Weinacht (Department of Physics and Astronomy, Stony Brook University) for assistance with the pulsed laser ablation deposition. We also thank the NYSTAR Sensor Center for Advanced Technology and the New York State Strategic Partnership for Industrial Resurgence (SPIR) for supporting this effort. We also thank US Naval Research Laboratory and National Renewable Energy Laboratory for technical and material support of this effort.

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Correspondence to G.P. Halada.

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Halada, G., Chawda, S., Mawyin, J. et al. Advances in Amorphous Silicon Integrated Photonics Science and Technology. MRS Online Proceedings Library 862, 91 (2004). https://doi.org/10.1557/PROC-862-A9.1

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