Enhanced Fluorescence Emission from Single Molecules on a Two-Dimensional Photonic Crystal Slab with Low Background Emission
Kaji, T; Yamada, T; Ueda, R; Otomo, A
| HERO ID | 3575654 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Enhanced Fluorescence Emission from Single Molecules on a Two-Dimensional Photonic Crystal Slab with Low Background Emission |
| Authors | Kaji, T; Yamada, T; Ueda, R; Otomo, A |
| Journal | Journal of Physical Chemistry Letters |
| Volume | 2 |
| Issue | 14 |
| Page Numbers | 1651-1656 |
| Abstract | Enhancement of fluorescence from single molecules of perylene diimide (PDI) on tantalum pentoxide (Ta2O3) two-dimensional photonic crystal (PC) slabs with low background emission was observed using a single-molecule fluorescence spectroscopy technique. The fluorescence intensity of the single molecules on the PC was more than 3 times higher than that of the molecules without the PC. The performance of the PC slabs with a 100 x objective lens was evaluated by steady-state and time-resolved ensemble fluorescence measurements. The mechanism of the enhancement was attributed to coupling of an excitation laser and fluorescence to the PCs' modes. The present results yield new insights into a highly sensitive investigation of single molecules and regulation of fluorescence emission from them via the effect of PCs. |
| Doi | 10.1021/jz2006989 |
| Wosid | WOS:000293191800002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |