About the Authors

Marjan Shayegan

Affiliation Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada

Nancy R. Forde

nforde@sfu.ca

Affiliation Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MS NF. Performed the experiments: MS. Analyzed the data: MS NF. Wrote the paper: MS NF.