Optical loss compensation in a bulk left-handed metamaterial by the gain in quantum dots

Autor:	Dong, Zheng-Gao, Liu, Hui, Li, Tao, Zhu, Zhi-Hong, Wang, Shu-Ming, Cao, Jing-Xiao, Zhu, Shi-Ning, Zhang, X.
Rok vydání:	2009
Předmět:	Physics - Optics Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3302409
Popis:	A bulk left-handed metamaterial with fishnet structure is investigated to show the optical loss compensation via surface plasmon amplification, with the assistance of a Gaussian gain in PbS quantum dots. The optical resonance enhancement around 200 THz is confirmed by the retrieval method. By exploring the dependence of propagation loss on the gain coefficient and metamaterial thickness, we verify numerically that the left-handed response can endure a large propagation thickness with ultralow and stable loss under a certain gain coefficient. Comment: 6 pages with 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0909.1363 Zobrazit plný text záznamu View this record from Arxiv