Femtosecond Transient Absorption Spectroscopy of Single-Walled Carbon Nanotubes and their Ultrafast Optical Switching Behavior
2007 ◽
Vol 121-123
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pp. 905-908
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Keyword(s):
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.
2008 ◽
Vol 112
(12)
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pp. 4507-4516
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2020 ◽
Vol 124
(36)
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pp. 19476-19483
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1999 ◽
Vol 110
(7)
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pp. 3453-3462
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2015 ◽
Vol 7
(4)
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pp. 2833-2846
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