Coherent Manipulation of Single Photon Scattering in Chirally Coupled System of Giant Atom with a Pair of Waveguides

Longgao Tao; Xiaosan Ma; Mutian Cheng

doi:10.3788/AOS202242.2126007

Journals >Acta Optica Sinica >Volume 42 >Issue 21 >Page 2126007 > Article

Acta Optica Sinica
Vol. 42, Issue 21, 2126007 (2022)

Coherent Manipulation of Single Photon Scattering in Chirally Coupled System of Giant Atom with a Pair of Waveguides

Longgao Tao, Xiaosan Ma, and Mutian Cheng^*

Author Affiliations

School of Electrical and Information Engineering, Anhui University of Technology, Maanshan243002, Anhui , China

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DOI: 10.3788/AOS202242.2126007 Cite this Article Set citation alerts

Longgao Tao, Xiaosan Ma, Mutian Cheng. Coherent Manipulation of Single Photon Scattering in Chirally Coupled System of Giant Atom with a Pair of Waveguides[J]. Acta Optica Sinica, 2022, 42(21): 2126007 Copy Citation Text

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Fig. 1. Schematic of giant atom chirally couples to the waveguides W_m and W_n

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Single scattering probabilities versus detuning Δ and Rabi frequency Ω with Γmr=Γnr=Γ. (a) Tmr and ( b) Tnr with θn=0 and θm=0.5π; (c) Tmr and (d) Tnr with θn=0 and θm=0.95π; (e) Tmr and (f) Tnr with θn=0,θm=0.5π and θn=0,θm=0.95π. The value of Ω is determined by Eq. (8)

Fig. 2. Single scattering probabilities versus detuning

Δ

and Rabi frequency

Ω

with

Γ_{m r} = Γ_{n r} = Γ

. (a)

T_{m r}

and ( b)

T_{n r}

with

θ_{n} = 0

and

θ_{m} = 0.5 π

; (c)

T_{m r}

and (d)

T_{n r}

with

θ_{n} = 0

and

θ_{m} = 0.95 π

; (e)

T_{m r}

and (f)

T_{n r}

with

θ_{n} = 0

θ_{m} = 0.5 π

and

θ_{n} = 0

θ_{m} = 0.95 π

. The value of

Ω

is determined by Eq. (8)

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Fig. 3. Single scattering probabilities versus detuning

Δ

and Rabi frequency

Ω

with

Γ_{m r} = Γ

and

Γ_{n r} = 0.8 Γ

. (a)

T_{m r}

and (b)

T_{n r}

with

θ_{n} = 0

and

θ_{m} = 0.5 π

; (c)

T_{m r}

and (d)

T_{n r}

with

θ_{n} = 0

and

θ_{m} = 0.95 π

; (e)

T_{m r}

and (f)

T_{n r}

with

θ_{n} = 0

θ_{m} = 0.5 π

and

θ_{n} = 0

θ_{m} = 0.95 π

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Fig. 4.

T_{m r}

and

T_{n r} (T_{n l})

versus detuning

Δ

and

Ω

with

Γ_{m r} = Γ_{n r} = Γ_{n l} = Γ

. (a)

T_{m r}

and (b)

T_{n r} (T_{n l})

with

θ_{n} = 0

and

θ_{m} = 0.5 π

; (c)

T_{m r}

and (d)

T_{n r} (T_{n l})

with

θ_{n} = 0

and

θ_{m} = 0.95 π

; (e)

T_{m r}

and (f)

T_{n r} (T_{n l})

with

θ_{n} = 0

θ_{m} = 0.5 π

and

θ_{n} = 0

θ_{m} = 0.95 π

. The value of

Ω

is determined by Eq. (11)

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Fig. 5.

T_{m r}

and

T_{n r} (T_{n l})

versus detuning

Δ

and

Ω

with

Γ_{m r} = Γ a n d Γ_{n r} = Γ_{n l} = 0.8 Γ

. (a)

T_{m r}

and (b)

T_{n r} (T_{n l})

with

θ_{n} = 0

and

θ_{m} = 0.5 π

; (c)

T_{m r}

and (d)

T_{n r} (T_{n l})

with

θ_{n} = 0

and

θ_{m} = 0.95 π

; (e)

T_{m r}

and (f)

T_{n r} (T_{n l})

with

θ_{n} = 0

θ_{m} = 0.5 π

and

θ_{n} = 0

θ_{m} = 0.95 π

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Fig. 6. Single photon scattering properties changed with detuning under different atomic dissipation.

T_{n r}

as a function of

Δ

and atomic dissipation with (a)

θ_{n} = 0

θ_{m} = 0.5 π

and (b)

θ_{n} = 0

θ_{m} = 0.95 π

under the condition of

Γ_{m r} = Γ_{n r} = Γ

;

T_{n r}

as a function of

Δ

and atomic dissipation with (c)

θ_{n} = 0

θ_{m} = 0.5 π

and (d)

θ_{n} = 0

θ_{m} = 0.95 π

under the condition of

Γ_{m r} = Γ_{n r} = Γ_{n l} = Γ

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