Highly directional emission from ultra-small photonic crystal resonators
Abstract
Here, we emphasize the importance of a bottom reflector for achieving unidirectional far-field emission. As a result, over 80% of photons generated inside the cavity can be collected within a divergence angle of ±30° from the top. We also discuss interesting analogy in which the nanocavity-bottom reflector coupled system is treated as a point-like emitter in front of a mirror. Based on such a view point, the observed directivity is explained by using a comprehensive interference model. Finally, we propose a very practical form of an efficient photonic crystal nanolaser bonded on a flat metal surface, which may enable current injection and room-temperature continuous-wave operation.
Additional Information
© 2009 SPIE--The International Society for Optical Engineering. Online Publication Date: 20 August 2009; conference date: Tuesday 4 August 2009. This work was supported in part by the Air Force Office of Scientific Research (FA9550-04-1-0434), the Army Research Office (W911NF-07-1-0277), and the National Science Foundation (EEC-0812072). We gratefully acknowledge critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech.Attached Files
Published - Kim2009p8102Icton_2009_11Th_International_Conference_On_Transparent_Optical_Networks_Vols_1_And_2.pdf
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Additional details
- Eprint ID
- 18232
- Resolver ID
- CaltechAUTHORS:20100511-100044723
- FA9550-04-1-0434
- Air Force Office of Scientific Research (AFOSR)
- W911NF-07-1-0277
- Army Research Office (ARO)
- EEC-0812072
- NSF
- Created
-
2010-06-24Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 7402