Learn More
We present an experiment that systematically probes the basins of attraction of two fixed points of a nonlinear nanomechanical resonator and maps them out with high resolution. We observe a separatrix which progressively alters shape for varying drive strength and changes the relative areas of the two basins of attraction. The observed separatrix is blurred(More)
We explore an electrostatic mechanism for tuning the nonlinearity of nanomechanical resonators and increasing their dynamic range for sensor applications. We also demonstrate tuning the resonant frequency of resonators both upward and downward. A theoretical model is developed that qualitatively explains the experimental results and serves as a simple guide(More)
Efficient light trapping structure in thin film silicon solar cells. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. ABSTRACT(More)
All Rights Reserved iii ACKNOWLEDGEMENTS First of all, I'd like to thank my advisor, Prof. Michael Roukes, who has always been a strong support through all these years of my graduate career, and beyond. During my stay at Condensed Matter Physics at Caltech, I have been privileged to work with, and learn from, other members of the group. Special thanks goes(More)
  • 1