OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 13218–13224

Whispering-gallery modes and light emission from a Si-nanocrystal-based single microdisk resonator

Mher Ghulinyan, Daniel Navarro-Urrios, Alessandro Pitanti, Alberto Lui, Georg Pucker, and Lorenzo Pavesi  »View Author Affiliations


Optics Express, Vol. 16, Issue 17, pp. 13218-13224 (2008)
http://dx.doi.org/10.1364/OE.16.013218


View Full Text Article

Enhanced HTML    Acrobat PDF (1032 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report on visible light emission from Si-nanocrystal based optically active microdisk resonators. The room temperature photoluminescence (PL) from single microdisks shows the characteristic modal structure of whispering-gallery modes. The emission is both TE and TM-polarized in 300 nm thick microdisks, while thinner ones (135 nm) support only TE-like modes. Thinner disks have the advantage to filter out higher order radial mode families, allowing for measuring only the most intense first order modal structure. We reveal subnanometer linewidths and corresponding quality factors as high as 2800, limited by the spectral resolution of the experimental setup. Moreover, we observe a modification of mode linewidth by a factor 13 as a function of pump power. The origin of this effect is attributed to an excited carrier absorption loss mechanism.

© 2008 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(230.5750) Optical devices : Resonators
(250.5230) Optoelectronics : Photoluminescence
(140.3948) Lasers and laser optics : Microcavity devices

ToC Category:
Optical Devices

History
Original Manuscript: June 6, 2008
Revised Manuscript: August 4, 2008
Manuscript Accepted: August 5, 2008
Published: August 13, 2008

Citation
Mher Ghulinyan, Daniel Navarro-Urrios, Alessandro Pitanti, Alberto Lui, Georg Pucker, and Lorenzo Pavesi, "Whispering-gallery modes and light emission from a Si-nanocrystal-based single microdisk resonator," Opt. Express 16, 13218-13224 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-17-13218


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. L. Rayleigh, "Further applications of Bessel�??s functions of high order to the whispering gallery and allied problems," Philos. Mag. 27, 100 (1914).
  2. K.J. Vahala, "Optical Microcavities," Nature (London) 424, 839 (2003). [CrossRef] [PubMed]
  3. See, e.g. the review by V. S. Ilchenko and A. B. Matsko, "Optical Resonators With Whispering-Gallery Modes-Part I: Basics," IEEE J. Sel. Top. Quantum Electron. 12, 76 (2006).
  4. A. M. Armani, D. K. Armani, B. Min, K. J. Vahala, and S. M. Spillane, "Ultra-high-Q microcavity operation in H2O and D2O," Appl. Phys. Lett. 87, 151118 (2005). [CrossRef]
  5. S. L. McCall, A. F. J. Levi, R. E. Slusher, S. J. Pearton, and R. A. Logan, "Whispering-gallery mode microdisk lasers," Appl. Phys. Lett. 60, 289 (1992). [CrossRef]
  6. P. Michler et al., "Laser emission from quantum dots in microdisk structures," Appl. Phys. Lett. 77, 184 (2000). [CrossRef]
  7. Zh. Zhang et al., "Visible submicron microdisk lasers," Appl. Phys. Lett. 90, 111119 (2007). [CrossRef]
  8. K. Srinivasan, A. Stintz, S. Krishna, and O. Painter, "Photoluminescence measurements of quantum-dotcontaining semiconductor microdisk resonators using optical fiber taper waveguides," Phys. Rev. B 72, 205318 (2005). [CrossRef]
  9. L. Pavesi, L. Dal Negro, C. Mazzoleni, G. Franzo, and F. Priolo, "Optical gain in silicon nanocrystals," Nature (London) 408, 440 (2000). [CrossRef] [PubMed]
  10. L. Pavesi, S. Gaponenko, and L. Dal Negro, eds. Towards the First Silicon Laser, NATO Science Series (Kluwer, Dordrecht, 2003). [CrossRef]
  11. A. S. Liu et al., "A high-speed silicon optical modulator based on a metal-oxide-semiconductor capacitor," Nature (London) 427, 615 (2004). [CrossRef] [PubMed]
  12. H. Rong et al., "An all-silicon Raman laser," Nature (London) 433, 292 (2005). [CrossRef] [PubMed]
  13. Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, "Micrometre-scale silicon electro-optic modulator," Nature (London) 435, 325 (2005). [CrossRef] [PubMed]
  14. R.-J. Zhang, S.-Y. Seo, A. P. Milenin, M. Zacharias, and U. Gösele, "Visible range whispering-gallery mode in microdisk array based on size-controlled Si nanocrystals," Appl. Phys. Lett. 88, 153120 (2006). [CrossRef]
  15. D. S. Gardner and M. L. Brongersma, "Microring and microdisk optical resonators using silicon nanocrystals and erbium prepared using silicon technology," Opt. Mater. 27, 804 (2005). [CrossRef]
  16. L. Ferraioli, M. Wang, G. Pucker, D. Navarro-Urrios, N. Daldosso, C. Kompocholis, and L. Pavesi, "Photoluminescence of Silicon Nanocrystals in Silicon Oxide," J. Nanomat. 2007, 43491 (2007).
  17. The PL spectra collected vertically to the disk plane show only the characteristic nc-Si emission band. The absence of WGM lines implies a significantly low surface scattering and confirms the high surface quality of microdisks.
  18. A 5 nm variation in the disk radius (roughly 0.1%) results to a spectral shift of the resonant features by 2 nm.
  19. A. Farjadpour et al., "Improving accuracy by subpixel smoothing in the finite-difference time domain," Opt. Lett. 31, 2972 (2006). [CrossRef] [PubMed]
  20. D. Navarro-Urrios et al., "Quantification of the carrier absorption losses in Si-nanocrystal rich rib waveguides at 1.54 �??m," Appl. Phys. Lett. 92, 051101 (2008). [CrossRef]
  21. R. G. Elliman, M. Forcales, A. R. Wilkinson, and N. J. Smith, "Waveguiding properties of Er-implanted silicon-rich oxides," Nucl. Instrum. Meth. Phys. Res. B 257, 11 (2007). [CrossRef]
  22. The quality of fit to ellipsometric data saturates down to values |2 ¡« 0.1 for loss coefficients smaller than �?�0 =30 cm-1.
  23. S. Reitzenstein et al., "Lasing in high-Q quantum-dot micropillar cavities," Appl. Phys. Lett. 89, 051107 (2006). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited