The solution of input-output curves in an optical ring cavity containing Landau-quantized graphene is theoretically investigated taking the advantage of density-matrix method. It is found that under the action of strong magnetic and infrared laser fields, one can efficiently reduce the threshold of the onset of optical bistability (OB) at resonance condition. At non-resonance condition, we observed that graphene metamaterial can support the possibility to obtain optical multistability (OM), which is more practical in all-optical switching or coding elements. We present an analytical approach to elucidate our simulations. Due to very high infrared optical nonlinearity of graphene stemming from very unique and unusual properties of quantized Landau levels near the Dirac point, such controllability on OB and OM may provide new technological possibilities in solid state quantum information science.
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14 May 2015
Research Article|
May 08 2015
Realization of optical bistability and multistability in Landau-quantized graphene
H. R. Hamedi
;
H. R. Hamedi
a)
1Institute of Theoretical Physics and Astronomy,
Vilnius University
, A. Gostauto 12, LT-01108 Vilnius, Lithuania
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S. H. Asadpour
S. H. Asadpour
2Department of Physics,
University of Guilan
, Rasht P. O. Box 1914, 41335, Iran
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a)
Author to whom correspondence should be addressed. Electronic mail: [email protected]. Tel./Fax: +37067218909.
J. Appl. Phys. 117, 183101 (2015)
Article history
Received:
March 06 2015
Accepted:
April 27 2015
Citation
H. R. Hamedi, S. H. Asadpour; Realization of optical bistability and multistability in Landau-quantized graphene. J. Appl. Phys. 14 May 2015; 117 (18): 183101. https://doi.org/10.1063/1.4919893
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