Active control of transmission and group velocity in one-dimensional photonic crystals

Sattari, Hamed; Sahrai, Mostafa

doi:10.1016/j.optcom.2013.08.030

Cited by 14 publications

(14 citation statements)

References 37 publications

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“…Here, we assume the periodic constant is equal to N = 5. The layers A and B have two high and low refractive indices equal to n A = 2.22 and n B = 1.41 which representing titanium oxide and fused silica, respectively [32]. The optical thickness of each layer is n A d A = n B d B = λ 0 /4m, where λ 0 = 1550 nm, is the central frequency of wave packet lunched into system, and m is an integer and we take m = 4 for proposed system.…”

Section: Theoretical Model and Formulationsmentioning

confidence: 99%

Three-dimensional control of the light propagation in a defect photonic crystal

Bravo A,

Aslla Q,

Huamán-Romaní

et al. 2023

Laser Phys.

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In this paper, we have proposed a new model for controlling the light propagation in a defect photonic crystal structure with a dispersive defect layer. The defect layer consists of a four-level quantum wells interacts by two optical vortex lights. Here, a weak signal light can be generated due to the four-wave mixing mechanism, and this led to phase dependent of the medium. By intensity modulations of the applied lights, we study the 3D properties of the transmitted, reflected and absorption spectrums of the incident light from defect photonic crystal. We have shown that via azimuthal modulations of the optical vortex light the incident light can be absorbed or amplified easily.

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Section: Theoretical Model and Formulationsmentioning

confidence: 99%

Three-dimensional control of the light propagation in a defect photonic crystal

Bravo A,

Aslla Q,

Huamán-Romaní

et al. 2023

Laser Phys.

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“…Note that the width of transparent window (≈ 1 meV) is approximately equal to the transparent width of the free QD molecules which is given by Eq. (8). The results of Fig.…”

mentioning

confidence: 93%

“…Recently the phase control of the group velocity of reflected and transmitted light pulse was studied in a dielectric slab doped with three-level ladder-type atoms [7] . Moreover, the coherent control of transmission and group velocity in one-dimensional photonic crystal were also introduced [8] .…”

mentioning

confidence: 99%

Voltage-controlled transmission through a dielectric slab doped with quantum dot molecules

Zohravi¹,

Mahmoudi²

2014

中国光学快报

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Transmission and reflection of an electromagnetic pulse through a dielectric slab doped with the quantum dot molecules are investigated. It is shown that the transmission and reflection coefficients depend on the inter-dot tunneling effect and can be simply controlled by applying a gate voltage without any changing in the refractive index or thickness of the slab. Such simple controlling prepares an active beam splitter which can be used in all optical switching, optical limiting, and other optical systems.

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“…Wang et al investigated sub-and superluminal light pulse propagation in the reflected and transmitted beam for the first time by doping two-or three-level atoms within a slab [26]. Since then, several investigations have been proposed and studied for sub-and superluminal light pulse propagations [27][28][29][30][31][32][33]. In these proposals, different atomic configurations are doped within a slab, such as a duplicated two-level atomic configuration [34].…”

Section: Introductionmentioning

confidence: 99%

“…In this article, based on earlier investigations [26][27][28][29][30][31][32][33], we investigate the control of group velocity from sub-to superluminal and vice versa in the reflected and transmitted pulses passing through a slab doped with atoms in a duplicated twolevel configuration. The motivation comes from the coherent control of group velocity in a gaseous atomic medium via the phase shift between the control and probe fields [34,36].…”

Section: Introductionmentioning

confidence: 99%

Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms

Ziauddin¹,

Chuang²,

Lee³

et al. 2015

Laser Phys.

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Coherent control of reflected and transmitted pulses is investigated theoretically through a slab doped with atoms in a duplicated two-level configuration. When a strong control field and a relatively weak probe field are employed, coherent control of the group velocity is achieved via changing the phase shift φ between control and probe fields. Furthermore, the peak values in the delay time of the reflected and transmitted pulses are also studied by varying the phase shift φ.

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Active control of transmission and group velocity in one-dimensional photonic crystals

Cited by 14 publications

References 37 publications

Three-dimensional control of the light propagation in a defect photonic crystal

Three-dimensional control of the light propagation in a defect photonic crystal

Voltage-controlled transmission through a dielectric slab doped with quantum dot molecules

Coherent control of the group velocity in a dielectric slab doped with duplicated two-level atoms

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