Observation of optical nonlinearites in strongly quantum confined PbSe nanocrystals for all-optical tunable nanophotonics

C. J. Chen; J. I. Dadap Jr.; J. Urban; C. B. Murray; R. M. Osgood Jr.; C. W. Wong

doi:10.1117/12.686373

2 October 2006 Observation of optical nonlinearites in strongly quantum confined PbSe nanocrystals for all-optical tunable nanophotonics

C. J. Chen, J. I. Dadap Jr., J. Urban, C. B. Murray, R. M. Osgood Jr., C. W. Wong

Author Affiliations +

Proceedings Volume 6393, Nanophotonics for Communication: Materials, Devices, and Systems III; 63930E (2006) https://doi.org/10.1117/12.686373
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

The nonlinear refractive index (n₂) and two-photon absorption coefficient (β₂), was determined for PbSe nanocrystals (NCs) suspended in trichloroethylene (TCE) using a standard Z-scan technique with femtosecond pulses over a range of wavelengths in the near-IR. For comparison, the n₂ of PbS NCs in chloroform was also measured. The exciton peaks of the NCs were tuned to telecommunications wavelengths. The concentration of the solutions ranged from 4.5 mg/mL to 18.8 mg/mL.

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C. J. Chen, J. I. Dadap Jr., J. Urban, C. B. Murray, R. M. Osgood Jr., and C. W. Wong "Observation of optical nonlinearites in strongly quantum confined PbSe nanocrystals for all-optical tunable nanophotonics", Proc. SPIE 6393, Nanophotonics for Communication: Materials, Devices, and Systems III, 63930E (2 October 2006); https://doi.org/10.1117/12.686373

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