About the Authors

Sasun G. Gevorkian

Affiliations Institute of Physics, Academia Sinica, Taipei, Taiwan, Yerevan Physics Institute, Yerevan, Armenia

Armen E. Allahverdyan

Affiliation Yerevan Physics Institute, Yerevan, Armenia

David S. Gevorgyan

Affiliation Institute of Fine Organic Chemistry, Scientific-Technological Center of Organic and Pharmaceutical Chemistry, Yerevan, Armenia

Aleksandr L. Simonian

Affiliation Materials Research and Education Center, Auburn University, Auburn, Alabama, United States of America

Chin-Kun Hu

huck@phys.sinica.edu.tw

Affiliation Institute of Physics, Academia Sinica, Taipei, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SGG ALS. Performed the experiments: SGG DSG. Analyzed the data: SGG AEA CKH. Contributed reagents/materials/analysis tools: ALS. Wrote the paper: AEA SGG.