Photon echo in an atomic frequency comb in a Pr-doped LaF3 crystal

Ахмеджанов, Р. А.; Bondartsev, A. A.; Гущин, Л. А.; Zelensky, I. V.; Litvak, A. G.; Sobgaida, D. A.

doi:10.1134/s0030400x13090026

Cited by 2 publications

(4 citation statements)

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“…Unlike AFC [30], the GFC comb teeth are distributed along the incoming photon propagation direction rather than being together uniformly everywhere in the medium. The mechanism of GFC scheme is the same as AFC, and the singlephoton storage and processing techniques developed in AFC, such as on-demand retrieval [30,37,39,82], temporal sequencing [83], time-bin qubit measurement [84], etc, are all applicable in GFC scheme. Beyond this, by assigning different comb teeth to different positions, the preparation of the frequency comb is simplified, leading to various ways for the implementation of this scheme.…”

Section: Gradient Frequency Combmentioning

confidence: 99%

“…III by Eqs. (37) and (38), where we consider l m = ml 0 , and define the ratio between l 0 and d as F = l 0 /d, so that…”

Section: Appendix E: Analytical Analysis Of Gfc In Optically Thin Mediummentioning

confidence: 99%

“…A storage loop [29] stores a single photon in a loop with on-pseudodemand retrieval controlled by a high-speed switcher. Atomic frequency comb (AFC) [30][31][32][33][34][35][36][37][38][39][40] utilizes a spectrally periodic absorption structure, produced by spectrum tailoring on a wide inhomogeneous broadening, to store a single-photon wave packet in a medium based on photon-echo mechanism. Another scheme based on photon-echo mechanism is gradient echo memory (GEM) [41][42][43], which stores a photon by controlling the rephasing condition of the polarization via * xiwen@physics.tamu.edu manipulating an artificial, continuous, distributedin-space inhomogeneous broadening.…”

Section: Introductionmentioning

confidence: 99%

“…(Color online) D-GFC (a) and S-GFC (b) echoes as functions of time for |g| 2 N dT0 = 10. The solid lines are numerical simulations of Eqs (37). and(38).…”

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confidence: 99%

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Exact solution of gradient echo memory and analytical treatment of gradient frequency comb

Zhang¹

2016

Preprint

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Gradient echo memory (GEM) stores and retrieves photon wave packet in forward direction with high efficiency and fidelity using photon-echo mechanism. It is an important technique for quantum memory applications. By breaking the continuity of the gradient absorption structure, the scheme becomes gradient frequency comb (GFC), which is a hybrid of GEM and atomic frequency comb (AFC). To elucidate the non-trivial field-atom evolution of gradient echo, we derive its exact analytical solution in a medium of arbitrary optical thickness subjecting to any linear gradient of transition frequency, and discuss its physical processes. Based on this solution, we further suggest and analysis two types of GFC, one with stepwise gradient and the other with discontinuous gradient.

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Section: Gradient Frequency Combmentioning

confidence: 99%

“…III by Eqs. (37) and (38), where we consider l m = ml 0 , and define the ratio between l 0 and d as F = l 0 /d, so that…”

Section: Appendix E: Analytical Analysis Of Gfc In Optically Thin Mediummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…(Color online) D-GFC (a) and S-GFC (b) echoes as functions of time for |g| 2 N dT0 = 10. The solid lines are numerical simulations of Eqs (37). and(38).…”

mentioning

confidence: 99%

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