Shakoor, A. , Lo Savio, R., Portalupi, S.L., Gerace, D., Andreani, L.C., Galli, M., Krauss, T.F. and O'Faolain, L. (2012) Enhancement of room temperature sub-bandgap light emission from silicon photonic crystal nanocavity by Purcell effect. Physica B: Condensed Matter, 407(20), pp. 4027-4031. (doi: 10.1016/j.physb.2011.12.115)
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Abstract
We report the enhancement of sub-bandgap photoluminescence from silicon via the Purcell effect. We couple the defect emission from silicon, which is believed to be due to hydrogen incorporation into the lattice, to a photonic crystal (PhC) nanocavity. We observe an up to 300-fold enhancement of the emission at room temperature at 1550 nm, as compared to an unpatterned sample, which is then comparable to the silicon band-edge emission. We discuss the possibility of enhancing this emission even further by introducing additional defects by ion implantation, or by treating the silicon PhC nanocavity with hydrogen plasma.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Shakoor, Dr Abdul |
| Authors: | Shakoor, A., Lo Savio, R., Portalupi, S.L., Gerace, D., Andreani, L.C., Galli, M., Krauss, T.F., and O'Faolain, L. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Physica B: Condensed Matter |
| Publisher: | Elsevier |
| ISSN: | 0921-4526 |
| ISSN (Online): | 1873-2135 |
| Published Online: | 26 December 2011 |
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