Controlled Spontaneous Emission of Single Molecules in a Two-Dimensional Photonic Band Gap

详细信息    查看全文

• 作者：Takahiro Kaji ; Toshiki Yamada ; Syoji Ito ; Hiroshi Miyasaka ; Rieko Ueda ; Shin-ichiro Inoue ; Akira Otomo
• 刊名：The Journal of the American Chemical Society
• 出版年：2013
• 出版时间：January 9, 2013
• 年：2013
• 卷：135
• 期：1
• 页码：106-109
• 全文大小：405K
• 年卷期：v.135,no.1(January 9, 2013)
• ISSN：1520-5126

文摘

We have established a new platform to control the rate of spontaneous emission (SE) of organic molecules in the visible-light region using a combination of a two-dimensional (2D) photonic crystal (PC) slab made of TiO₂ and a single-molecule measurement method. The SE from single molecules of a perylenediimide derivative was effectively inhibited via a radiation field controlled by the 2D PC slab, which has a photonic band gap (PBG) for transverse-electric (TE)-polarized light. The fluorescence lifetimes of the single molecules were extended up to 5.5 times (28.6 ns) by the PBG effect. This result appears to be the first demonstration of drastic lifetime elongation for single molecules due to a PBG effect.