CUED Publications database

Graphene mode-locked ultrafast laser.

Sun, Z and Hasan, T and Torrisi, F and Popa, D and Privitera, G and Wang, F and Bonaccorso, F and Basko, DM and Ferrari, AC (2010) Graphene mode-locked ultrafast laser. ACS Nano, 4. pp. 803-810.

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Abstract

Graphene is at the center of a significant research effort. Near-ballistic transport at room temperature and high mobility make it a potential material for nanoelectronics. Its electronic and mechanical properties are also ideal for micro- and nanomechanical systems, thin-film transistors, and transparent and conductive composites and electrodes. Here we exploit the optoelectronic properties of graphene to realize an ultrafast laser. A graphene-polymer composite is fabricated using wet-chemistry techniques. Pauli blocking following intense illumination results in saturable absorption, independent of wavelength. This is used to passively mode-lock an erbium-doped fiber laser working at 1559 nm, with a 5.24 nm spectral bandwidth and approximately 460 fs pulse duration, paving the way to graphene-based photonics.

Item Type: Article
Uncontrolled Keywords: Adsorption Carbon Electrons Kinetics Lasers Telecommunications
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:23
Last Modified: 14 Jul 2014 01:07
DOI: 10.1021/nn901703e

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