Photonic graphene with reconfigurable geometric structures in coherent atomic ensembles

Niu, Fuqiang; Zhang, Hengfei; Yuan, Jinpeng; Liu, Xiao; Jia, Suotang; Wang, Lirong

doi:10.1007/s11467-023-1294-2

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…These are two-dimensional metasurfaces made of nano-or microparticles located in space according to a certain law at distances shorter than the wavelength of propagating radiation. An important property of such gratings is tunability under external influence, the role of which can be played by the intensity of the light wave, polarization, magnetic field, temperature [24,25].…”

Section: Introductionmentioning

confidence: 99%

The Amplification and Polarization Control of Transmitted Radiation by a Graphene-Containing Photonic Cell

Eliseeva,

Itrin,

Sementsov

2023

Photonics

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The transformation of the transmission spectra of linearly polarized radiation passing through a symmetric photonic cell is studied based on numerical analysis. The cell consists of two layers of magnetic semiconductor with a graphene monolayer on each and a central dielectric layer located between the graphene monolayers. It is possible to achieve amplification in the near terahertz range in graphene layers due to charge carrier drift. Control of transmission spectra and polarization of transmitted radiation can be achieved by changing the Fermi energy of graphene layers, by changing the external magnetic field, and by changing the thickness of the dielectric layer and the orientation of the incident radiation polarization plane.

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Section: Introductionmentioning

confidence: 99%

The Amplification and Polarization Control of Transmitted Radiation by a Graphene-Containing Photonic Cell

Eliseeva,

Itrin,

Sementsov

2023

Photonics

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Reconfigurable Photonic Lattices Based on Atomic Coherence

Yuan,

Liang,

et al. 2024

Advanced Physics Research

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The array of coupled optical waveguides, which is also viewed as a photonic lattice, can exhibit abundant photonic band structures depending on the desired spatial arrangements of involved waveguides. Studies of photonic lattices are usually performed in solid‐state materials, where the required periodic susceptibilities can be achieved by employing the femtosecond laser direct‐writing or optical induction method, and have spawned flourishing achievements in manipulating the behaviors of light. Recently, the concept of electromagnetically induced photonic lattice (EIPL) is proposed under the well‐known electromagnetically induced transparency (EIT) in coherently prepared multilevel alkali‐metal atomic systems, where the strong coupling beams producing EIT possess spatially periodic intensity profiles. The inherited instantaneous tunability of susceptibility from EIT‐modulated atomic coherence allows for the easy reconfigurability of EIPLs, which gives rise to exotic beam dynamics under such a readily controllable framework. This paper summarizes the historical overview and recent advances of the in situ and all‐optically reconfigurable EIPLs. The Introduction section provides the scheme and formation of the EIPL via atomic coherence. The following sections review the recently demonstrated dynamical properties of light in various 1D and 2D EIPLs and in compound EIPLs built by two coupling fields. The final section gives brief concluding remarks.

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Generation and characterization of customized Laguerre–Gaussian beams with arbitrary profiles

Wang,

Chen,

Wang

et al. 2024

Front. Phys.

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Photonic graphene with reconfigurable geometric structures in coherent atomic ensembles

Cited by 6 publications

References 49 publications

The Amplification and Polarization Control of Transmitted Radiation by a Graphene-Containing Photonic Cell

The Amplification and Polarization Control of Transmitted Radiation by a Graphene-Containing Photonic Cell

Reconfigurable Photonic Lattices Based on Atomic Coherence

Generation and characterization of customized Laguerre–Gaussian beams with arbitrary profiles

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