Femtosecond Transient Absorption Spectroscopy of Single-Walled Carbon Nanotubes and their Ultrafast Optical Switching Behavior

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Abstract:

Two types of individualized single-walled nanotubes (SWNTs) in aqueous surfactant suspensions have been studied by femtosecond two-color absorption spectroscopy. A careful selection of pump and probe wavelengths allows for the determination of the “intrinsic” lifetimes of the lowest excited states which depend on the diameter of the SWNTs. Furthermore, a fast decay component in the ps to sub-ps regime was also observed and tentatively attributed to bundle relaxation. Likewise, this experimental approach can also assess spectral regions with decays faster than 1 ps, which is of great interest for all-optical switching devices near the optical telecommunication wavelength.

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Solid State Phenomena (Volumes 121-123)

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905-908

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March 2007

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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[1] R. Krupke, F. Hennrich, H. v. Löhneysen and M.M. Kappes: Science Vol. 301 (2003), p.344.

Google Scholar

[2] Y. -C. Chen, N.R. Raravikar, L.S. Schadler, P.M. Ajayan, Y. -P. Zhao, T. -M. Lu, G. -C. Wang and X. -C. Zhang: App. Phys. Lett. Vol. 81 (2002), p.975.

Google Scholar

[3] Y. Sakakibara, S. Tatsuura, H. Kataura, M. Tokumoto and Y. Achiba: Jpn. J. Appl. Phys. Vol. 42 (2003), p. L494.

DOI: 10.1143/jjap.42.l494

Google Scholar

[4] H. Hippler, A.N. Unterreiner, J.P. Yang, S. Lebedkin and M. Kappes: Phys. Chem. Chem. Phys. (PCCP) Vol. 6 (2004), p.2387.

Google Scholar

[5] J. -P. Yang, M.M. Kappes, H. Hippler and A. -N. Unterreiner: Phys. Chem. Chem. Phys. (PCCP) Vol. 7 (2005), p.512, references therein.

Google Scholar

[6] S.M. Bachilo, M.S. Strano, C. Kittrell, R.H. Hauge, R.E. Smalley and R.B. Weisman: Science Vol. 298 (2002), p.2361.

DOI: 10.1126/science.1078727

Google Scholar

[7] S. Lebedkin, F. Hennrich, T. Skipa and M.M. Kappes: J. Phys. Chem. B, Vol. 107 (2003), p. (1949).

Google Scholar

[8] S. Lebedkin, K. Arnold, F. Hennrich, R. Krupke, B. Renker and M.M. Kappes: New J. Phys. Vol. 5 (2003), p.140. 1.

DOI: 10.1088/1367-2630/5/1/140

Google Scholar

[9] M.J. O'Connell, S.M. Bachilo, C.B. Huffman, V.C. Moore, M.S. Strano, E.H. Haroz, K.L. Rialon, P.J. Boul, W.H. Noon, C. Kittrell, J. Ma, R.H. Hauge, R.B. Weisman, and R.E. Smalley: Science Vol. 297, (2002), p.593.

DOI: 10.1126/science.1072631

Google Scholar

[10] R.B. Weisman and S.M. Bachilo: Nano Lett. Vol. 3 (2003) p.1235.

Google Scholar