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High quality two-dimensional photonic crystal slab cavities

Yoshie, Tomoyuki and Vučković, Jelena and Scherer, Axel and Chen, Hao and Deppe, Dennis (2001) High quality two-dimensional photonic crystal slab cavities. Applied Physics Letters, 79 (26). pp. 4289-4291. ISSN 0003-6951.

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We have fabricated and characterized donor-mode nanocavities formed by a single defect cavity defined within a two-dimensional photonic crystal slab. Quantum dots emitting in the 1.1-1.3 micron range were used as luminescence sources, and a design using fractional edge dislocations was used to demonstrate well-confined dipole modes with high quality factors. By applying the fractional dislocation geometry, the measured quality factor could be increased to values as high as 2800. This compares with typical quality factors of around 1500 measured from more conventional shallow donor mode cavities with larger mode volumes.

Item Type:Article
Additional Information:©2001 American Institute of Physics. Received 18 September 2001; accepted 24 October 2001. The authors gratefully appreciate many valuable suggestions from Marko Lončar. This work was supported by the NSF under Grant No. ECS-9912039, the DARPA under contract MDA972-00-1-0019, and the ARO under contract DAAD19-00-1-0374.
Subject Keywords:photonic band gap; quantum dots; photoluminescence; Q-factor; edge dislocations
Record Number:CaltechAUTHORS:YOSapl01b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3420
Deposited By: Tony Diaz
Deposited On:06 Jun 2006
Last Modified:26 Dec 2012 08:54

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