Projects per year
Abstract
Silicon is now firmly established as a high performance photonic material. Its only weakness is the lack of a native electrically driven light emitter that operates CW at room temperature, exhibits a narrow linewidth in the technologically important 1300-1600 nm wavelength window, is small and operates with low power consumption. Here, an electrically pumped all-silicon nano light source around 1300-1600 nm range is demonstrated at room temperature. Using hydrogen plasma treatment, nano-scale optically active defects are introduced into silicon, which then feed the photonic crystal nanocavity to enhance the electrically driven emission in a device via Purcell effect. A narrow (Delta lambda = 0.5 nm) emission line at 1515 nm wavelength with a power density of 0.4 mW/cm(2) is observed, which represents the highest spectral power density ever reported from any silicon emitter. A number of possible improvements are also discussed, that make this scheme a very promising light source for optical interconnects and other important silicon photonics applications.
Original language | English |
---|---|
Pages (from-to) | 114-121 |
Number of pages | 8 |
Journal | Laser & Photonics Reviews |
Volume | 7 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2013 |
Keywords
- nano light sources
- silicon light emis
- optically active defects
- LASER
- Silicon photonics
- photonic crystal cavity
Fingerprint
Dive into the research topics of 'Room temperature all-silicon photonic crystal nanocavity light emitting diode at sub-bandgap wavelengths'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Challening the Limits of Photonics: stru: Challenging the Limits of Photonics: Structured Light
Dholakia, K. (PI), Krauss, T. F. (CoI) & Samuel, I. D. W. (CoI)
1/06/12 → 31/05/17
Project: Standard
-
Lasing of Erbium in Crystalline silicon: Lasing of Erbium in crystalline silicon Photonic Nanostructures - LECSIN
O'Faolain, L. (PI) & Krauss, T. F. (CoI)
25/02/10 → 24/02/13
Project: Standard