Electromagnetically induced second-order Talbot effect

Qiu, Tianhui; Yang, Guojian; Bian, Qing

doi:10.1209/0295-5075/101/44004

Cited by 22 publications

(12 citation statements)

References 18 publications

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“…It possesses certain distinguishable features due to the lightinduced atomic coherence in atomic media and allows easy control of different experimental parameters in order to get an optimal configuration for desired applications. An atomic imaging scheme based on the second-order two-photon EITE is proposed in [22].…”

Section: Introductionmentioning

confidence: 99%

Talbot effect based on a Raman-induced grating

Arkhipkin

Myslivets

2019

Phys. Rev. A

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We theoretically study the Talbot effect resulting from Raman-induced grating based on periodic spatial modulation of the Raman gain and dispersion in the field of a standing pump wave. Features of integer and fractional Talbot effect are demonstrated for 1D and 2D Raman-induced gratings. It is shown that the intensity of diffraction images can increase due to Raman amplification in the grating. Glass-shaped diffraction patterns are demonstrated for 2D gratings. It is also shown that in the vicinity of the Talbot planes there are planes in which the diffraction patterns are spatially compressed and the intensity becomes greater. The results expand the possibility of using the Talbot effect in various applications.

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Section: Introductionmentioning

confidence: 99%

Talbot effect based on a Raman-induced grating

Arkhipkin

Myslivets

2019

Phys. Rev. A

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“…Under certain conditions EIG can have band gaps and transmission bands similar to photonic crystals which can be dynamically tuned [7][8][9]. Such periodic structures can be useful for all-optical control of light propagation [10][11][12], biphoton spectrum shaping [4], localization of atoms [13], electromagnetically induced Talbot effect [14,15], one-and twodimensional (1D and 2D) surface solitons in an atomic medium [16]. Applying an additional driving field in a four-level N-type scheme offers further advantages for dynamic control of EIG spectral properties [11,17].…”

Section: Introductionmentioning

confidence: 99%

One- and two-dimensional Raman-induced diffraction gratings in atomic media

Arkhipkin

Myslivets

2018

Phys. Rev. A

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We propose and analyze an efficient scheme for the one-and two-dimensional atomic gratings based on periodic spatial modulation of the Raman gain and dispersion, which we name the Raman induced diffraction gratings (RIDGs). There are fundamentally different from those based on electromagnetically induced transparency. As the probe field propagates along the direction normal to the standing pump wave, it can be effectively diffracted into high-order directions. The grating is a superposition of an amplitude and a phase gratings. We identify the conditions when all highorders diffraction are amplified. In addition, we also show that diffraction of a probe field could be dynamically controlled using an additional laser field. With its help, it is possible to suppress or amplify diffraction beams. The RIDGs can be considered as all-optical multi-beam splitters with amplification.

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“…In experiment, EIG has been observed in hot and cold atomic systems [14][15][16][17]. EIG effects have been widely applied for optical switching and routing [14], light storage [18], the quantum Talbot effect [19][20][21][22][23][24][25], atom wave interferometry [26], and so on. It is noted that the diffraction efficiency of the typical EIG scheme in [13] is very small under probe resonance and just over 10% can be obtained via adjusting the probe detuning.…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional electromagnetically induced grating via gain and phase modulation in a two-level system

Cheng¹,

Liu²,

Chen

2016

J. Phys. B: At. Mol. Opt. Phys.

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A scheme for two-dimensional (2D) electromagnetically induced grating via spatial gain and phase modulation is presented in a two-level atomic system. Based on the interactions of two orthogonal standing-wave fields, the atom could diffract the weak probe beam into high-order directions and a 2D diffraction grating is generated. It is shown that the diffraction efficiency of the grating can be efficiently manipulated by controlling the Rabi frequencies of control fields, the detunings of the control and probe fields, and interaction length. Different from 2D cross-grating via electromagnetically induced transparency in a four-level atomic system, the present scheme results from the spatial modulation of gain and phase in a simple two-level system, which could lead to 2D gain-phase grating with larger diffraction intensities in the diffraction directions. The studies we present may have potential applications in developing photon devices for optical-switching, optical imaging and quantum information processing.

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Electromagnetically induced second-order Talbot effect

Cited by 22 publications

References 18 publications

Talbot effect based on a Raman-induced grating

Talbot effect based on a Raman-induced grating

One- and two-dimensional Raman-induced diffraction gratings in atomic media

Two-dimensional electromagnetically induced grating via gain and phase modulation in a two-level system

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