Point Defect Engineered Si Sub-Bandgap Light-Emitting Diode
| Title: | Point Defect Engineered Si Sub-Bandgap Light-Emitting Diode |
| Author: |
Capasso, Federico; Aziz, Michael; Williams, James; Charnvanichborikarn, Supakit; Kim, Taegon; Tabbal, Malek; Bao, Jiming
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Bao, Jiming, Malek Tabal, Taegon Kim, Supakit Charnvanichborikarn, James S. Williams, Michael J. Aziz, and Federico Capasso. 2007. Point defect engineered Si sub-bandgap light-emitting diode. Optics Express 17, no. 7: 1333-1340. |
| Access Status: | At the direction of the depositing author this work is not currently accessible through DASH. |
| Full Text & Related Files: |
Bao_PointDefect.pdf (169.3Kb; PDF) 
|
| Abstract: | We extensively study the propagation features of higher-order modes in a photonic crystal fiber (PCF). Our analysis is based on a full-vector modal technique specially adapted to accurately describe light propagation in PCF’s. Unlike conventional fibers, PCF’s exhibit a somewhat unusual mechanism for the generation of higher-order modes. Accordingly, PCF’s are characterized by the constancy of the number of modes below a wavelength threshold. An explicit verification of this property is given through a complete analysis of the dispersion relations of higher-order modes in terms of the structural parameters of this kind of fiber. The transverse irradiance distributions for some of these higher-order modes are also presented, showing an excellent agreement with recent experimental measurements. In the same way, the full-vector nature of our approach allows us to analyze the rich polarization structure of the PCF mode spectrum. |
| Published Version: | http://dx.doi.org/10.1364/JOSAA.17.001333 |
| Other Sources: | http://www.seas.harvard.edu/matsci/people/aziz/publications/mja175.pdf |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:3163267 |
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