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Proceedings Paper

Observation of optical nonlinearites in strongly quantum confined PbSe nanocrystals for all-optical tunable nanophotonics
Author(s): C. J. Chen; J. I. Dadap Jr.; J. Urban; C. B. Murray; R. M. Osgood Jr.; C. W. Wong
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Paper 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.

Paper Details

Date Published: 2 October 2006
PDF: 7 pages
Proc. SPIE 6393, Nanophotonics for Communication: Materials, Devices, and Systems III, 63930E (2 October 2006); doi: 10.1117/12.686373
Show Author Affiliations
C. J. Chen, Columbia Univ. (United States)
J. I. Dadap Jr., Columbia Univ. (United States)
J. Urban, IBM Thomas J. Watson Research Ctr. (United States)
C. B. Murray, IBM Thomas J. Watson Research Ctr. (United States)
R. M. Osgood Jr., Columbia Univ. (United States)
C. W. Wong, Columbia Univ. (United States)


Published in SPIE Proceedings Vol. 6393:
Nanophotonics for Communication: Materials, Devices, and Systems III
Martina Gerken; Nibir K. Dhar; Achyut K. Dutta; M. Saif Islam, Editor(s)

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