1. Department of Chemistry, University of California─Irvine, Irvine, California 92697, United States
2. Laser Spectroscopy Laboratories, University of California─Irvine, Irvine, California 92697, United States
3. Department of Chemical & Biomolecular Engineering, University of California─Irvine, Irvine, California 92697, United States
4. Department of Materials Science & Engineering, University of California─Irvine, Irvine, California 92697, United States