Raman gain grating in an ultracold atomic medium

Shangqi, 匡尚奇 Kuang

doi:10.3788/co.20120505.0464

中国光学

2012

DOI: 10.3788/co.20120505.0464

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Raman gain grating in an ultracold atomic medium

匡尚奇 Kuang Shangqi¹

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Effect of Phase Modulation on Electromagnetically Induced Grating in a Five-Level M-Type Atomic System

Wang¹,

Qi²,

Deng³

et al. 2017

Chinese Phys. Lett.

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We theoretically investigate the phenomena of electromagnetically induced grating in an M-type five-level atomic system. It is found that a weak field can be effectively diffracted into high-order directions using a standing wave coupling field, and different depths of the phase modulation can disperse the diffraction light into different orders. When the phase modulation depth is approximated to the orders of , and , the first-, second- and third-order diffraction intensity reach the maximum, respectively. Thus we can take advantage of the phase modulation to control the probe light dispersing into the required high orders.

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Effect of Phase Modulation on Electromagnetically Induced Grating in a Five-Level M-Type Atomic System

Wang¹,

Qi²,

Deng³

et al. 2017

Chinese Phys. Lett.

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Two-dimensional gain cross-grating based on spatial modulation of active Raman gain

et al. 2016

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Based on the spatial modulation of active Raman gain, a two-dimensional gain cross-grating is theoretically proposed. As the probe field propagates along the z direction and passes through the intersectant region of the two orthogonal standingwave fields in the x-y plane, it can be effectively diffracted into the high-order directions, and the zero-order diffraction intensity is amplified at the same time. In comparison with the two-dimensional electromagnetically induced cross-grating based on electromagnetically induced transparency, the two-dimensional gain cross-grating has much higher diffraction intensities in the first-order and the high-order directions. Hence, it is more suitable to be utilized as all-optical switching and routing in optical networking and communication.

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Blazed gain grating in a four-level atomic system

Kuang

Yang

2012

J. Opt. Soc. Am. B

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Raman gain grating in an ultracold atomic medium

Cited by 3 publications

References 0 publications

Effect of Phase Modulation on Electromagnetically Induced Grating in a Five-Level M-Type Atomic System

Effect of Phase Modulation on Electromagnetically Induced Grating in a Five-Level M-Type Atomic System

Two-dimensional gain cross-grating based on spatial modulation of active Raman gain

Blazed gain grating in a four-level atomic system

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