Optical diode action from axially asymmetric nonlinearity in an all-carbon solid-state device.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5882

Title:	Optical diode action from axially asymmetric nonlinearity in an all-carbon solid-state device.
Authors:	Anand, Benoy Podila, Ramakrishna Lingam, Kiran Krishnan, S.R. Sai, Siva Sankara S. Philip, Reji Rao, Apparao M.
Keywords:	Optical diode graphene nonlinear absorption nonreciprocity
Issue Date:	13-Nov-2013
Publisher:	American Chemical Society
Citation:	Nano Letters, 2013, Vol.13, p5771-5776
Abstract:	Nanostructured carbons are posited to offer an alternative to silicon and lead to further miniaturization of photonic and electronic devices. Here, we report the experimental realization of the first all-carbon solid-state optical diode that is based on axially asymmetric nonlinear absorption in a thin saturable absorber (graphene) and a thin reverse saturable absorber (C60) arranged in tandem. This all-optical diode action is polarization independent and has no phase-matching constraints. The nonreciprocity factor of the device can be tuned by varying the number of graphene layers and the concentration or thickness of the C60 coating. This ultracompact graphene/C60 based optical diode is versatile with an inherently large bandwidth, chemical and thermal stability, and is poised for cost-effective large-scale integration with existing fabrication technologies.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/5882
ISSN:	1530-6984
Alternative Location:	http://dx.doi.org/10.1021/nl403366d
Copyright:	2013 American Chemical Society
Appears in Collections:	Research Papers (LAMP)

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