Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-17T09:11:04.887Z Has data issue: false hasContentIssue false
  • English
  • Français

Lasing from CdSe/ZnS Quantum Rods in a Cylindrical Microcavity

Published online by Cambridge University Press:  01 February 2011

Miri Kazes ,
David Y. Lewis ,
Yuval Ebenstein ,
Taleb Mokari  and
Uri Banin
Miri Kazes
Affiliation:
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Isreal
David Y. Lewis
Affiliation:
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Isreal
Yuval Ebenstein
Affiliation:
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Isreal
Taleb Mokari
Affiliation:
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Isreal
Uri Banin
Affiliation:
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Isreal
Get access

Abstract

Lasing from CdSe/ZnS quantum rods and quantum dots both in solution and in a film is studied by utilizing a high Q cylindrical microcavity, showing Whispering Gallery Mode (WGM) lasing. CdSe/ZnS quantum rods, in comparison to quantum dots, exhibited remarkably reduced lasing thresholds. In addition, polarization measurements revealed that quantum rods have a linear polarized lasing, in contrast to quantum dots that show no preferable lasing polarization. Furthermore, an efficient and reproducible method is employed for preparation of nanocrystal films inside capillaries by laser irradiation for achieving robust lasing. Further irradiation of the film resulted in a room temperature stable lasing over hundreds of pump pulses, lasing thresholds as low as 0.02mJ and lasing intensities that are three orders of magnitude larger than the saturated fluorescence intensity. This was successfully applied to CdSe/ZnS quantum rod samples of varied dimensions and was also demonstrated for quantum dot samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 789 , 2003 , N2.5
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Cao, Y. W., Banin, U., J. Am. Chem. Soc. 122, 9692 (2000).Google Scholar
2. Qu, L., Peng, Z. A., Peng, X., Nano Letters, Vol. 1, 6, 333 (2001).Google Scholar
3. Peng, X. G., Manna, L., Yang, W. D., Wickham, J., Scher, E., Kadavanich, A., Alivisatos, A. P., Nature, 404, 59 (2000).Google Scholar
4. Manna, L., Scher, E. C., Alivisatos, A. P., J. Am. Chem. Soc. 122, 12700 (2000).Google Scholar
5. Mokari, T., Banin, U., Chem. Matt. 15, 3955 (2003).Google Scholar
6. Hu, J., Li, L. S., Yang, W., Manna, L., Wang, L. W., Alivisatos, A. P., Science, 292, 2060 (2001).Google Scholar
7. Rothenberg, E., Ebenstein, Y., Kazes, M., Banin, U. – to be published.Google Scholar
8. Klimov, V. I., Mikhailovsky, A. A., McBranch, D. W., Leatherdale, C. A., Bawendi, M. G., Science 287, 1011 (2000).Google Scholar
9. Giessen, H., Woggon, U., Fluegel, B., Mohs, G., Hu, Y.Z., Koch, S.W., and Peyghambarian, N., Optics Letters 21, 1043 (1996).Google Scholar
10. Moon, H. J. T., Chough, Y., An, K., Phys. Rev. Lett. 85, 3161 (2000).Google Scholar
11. Kazes, M., Lewis, D. Y., Ebenstein, Y., Mokari, T., Banin, U., Adv. Mat. 4, 317 (2002).Google Scholar
12. Mazumder, M., Chowdhury, D. Q., Hill, S. C., Chang, R. K., Optical Processes in Microcavities, edited by Chang, R. K. and Campillo, A. J., (Advanced Series in Applied Physics, Vol. 3, World Scientific, Singapore, 1996) pp. 209–221.Google Scholar
13. Kazes, M., Lewis, D. Y., Banin, U. – to be published.Google Scholar
14. Link, S., El-Sayed, M. A., J. App. Phys. Vol. 92, 11, 6799 (2002).Google Scholar