Realization of optical bistability and multistability in Landau-quantized graphene

Abstract

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. V C 2015 AIP Publishing LLC. [http://dx.

Nonperturbative model for optical response under intense periodic fields with application to graphene in a strong perpendicular magnetic field

“…7 In general, the remarkable differences come from the denominator of Eqs. (12) and (17). In the limit γ → 0, the absorption edge can be changed by the field, which leads to the so called dynamic Franz-Keldysh effects.…”

Polarized dependence of nonlinear susceptibility in a single layer graphene system in infrared region

“…In Refs. [54][55][56][57][58][59][60][61][62][63] it has been demonstrated that the optical transitions between adjacent Landau levels in graphene for magnetic field 0.01-10 T fall into terahertz and infrared region according to…”

“…Moreover, due to growing high quality epitaxial graphene and combination of uncommon electronic features with extraordinary optical properties, they are very favoraitable for applications in infrared and terahertz optics [51][52][53]. Some optical properties of graphene [54][55][56][57][58][59][60][61][62][63] based on the nonlinear optical interaction in the presence of strong magnetic field have been analyzed. For example, generation of polarization entangled photons [54], generation and propagation of ultraslow optical solitons [57,58], controlling the optical bistability and multistability [61][62][63] have been reported very recently.…”

“…Some optical properties of graphene [54][55][56][57][58][59][60][61][62][63] based on the nonlinear optical interaction in the presence of strong magnetic field have been analyzed. For example, generation of polarization entangled photons [54], generation and propagation of ultraslow optical solitons [57,58], controlling the optical bistability and multistability [61][62][63] have been reported very recently. However, to the best of our knowledge, no theoretical or experimental work has been reported for observing enhanced Kerr nonlinearity of monolayer graphene system which causes the present work.…”

Absorption-free superluminal light propagation in a Landau-quantized graphene

“…In addition to the interest in fundamental research of optoelectronic and condensed matter physics [1,4], graphene is gaining attention owing to its various technological applications [5][6][7][8][9]. Moreover, extant literature has reported investigations concerning the optical properties of graphene [10][11][12][13][14][15]. Not only do the investigations provide insights into the underlying nature of graphene's excited states, but they also open up interesting perspectives for emerging photonic and optoelectronic applications.…”