Saturable absorption in detonation nanodiamond dispersions

Viatcheslav Vanyukov; Gennady Mikheev; Tatyana Mogileva; Alexey Puzyr; Vladimir Bondar; Dmitry Lyashenko; Andrey Chuvilin

doi:10.1117/1.JNP.11.032506

15 February 2017 Saturable absorption in detonation nanodiamond dispersions

Viatcheslav Vanyukov, Gennady Mikheev, Tatyana Mogileva, Alexey Puzyr, Vladimir Bondar, Dmitry Lyashenko, Andrey Chuvilin

Author Affiliations +

Journal of Nanophotonics, Vol. 11, Issue 3, 032506 (February 2017). https://doi.org/10.1117/1.JNP.11.032506

Abstract

We report on a saturable absorption in aqueous dispersions of nanodiamonds with femtosecond laser pulse excitation at a wavelength of 795 nm. The open aperture Z-scan experiments reveal that in a wide range of nanodiamond particle sizes and concentrations, a light-induced increase of transmittance occurs. The transmittance increase originates from the saturation of light absorption and is associated with a light absorption at 1.5 eV by graphite and dimer chains (Pandey dimer chains). The obtained key nonlinear parameters of nanodiamond dispersions are compared with those of graphene and carbon nanotubes, which are widely used for the mode-locking.

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Viatcheslav Vanyukov, Gennady Mikheev, Tatyana Mogileva, Alexey Puzyr, Vladimir Bondar, Dmitry Lyashenko, and Andrey Chuvilin "Saturable absorption in detonation nanodiamond dispersions," Journal of Nanophotonics 11(3), 032506 (15 February 2017). https://doi.org/10.1117/1.JNP.11.032506

Received: 6 November 2016; Accepted: 20 January 2017; Published: 15 February 2017

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