Population Inversion Under Driven of Double Laser Fields

Guiyin Zhang; Xiaorui Wu; Songtao Li; Haiming Zheng

doi:10.3788/LOP220733

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 7 >Page 0719001 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 7, 0719001 (2023)

Population Inversion Under Driven of Double Laser Fields

Guiyin Zhang^1、*, Xiaorui Wu¹, Songtao Li¹, and Haiming Zheng²

Author Affiliations

¹School of Mathematics and Physics, North China Electric Power University, Baoding 071003, Hebei, China

²Department of Mechanical Engineering, North China Electric Power University, Baoding 071003, Hebei, China

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DOI: 10.3788/LOP220733 Cite this Article Set citation alerts

Guiyin Zhang, Xiaorui Wu, Songtao Li, Haiming Zheng. Population Inversion Under Driven of Double Laser Fields[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0719001 Copy Citation Text

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Fig. 1. Double resonance multiphoton ionization model

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Variation of population of each energy state with time as laser pulse duration takes different values. (a) τ21=τ32=5 ns; (b) τ21=τ32=10 ns（t10=t20=10 ns，Δ21=Δ32=0，Ω210=Ω320=Ω0=2 GHz）

Fig. 2. Variation of population of each energy state with time as laser pulse duration takes different values. (a)

τ_{21} = τ_{32} = 5 n s

; (b)

τ_{21} = τ_{32} = 10 n s

（t₁₀=t₂₀=10 ns，Δ₂₁=Δ₃₂=0，

Ω_{210} = Ω_{320} = Ω_{0} = 2 G H z

）

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Fig. 3. Variation of population of each energy state with time as Rabi frequency takes different values. (a)

Ω_{210} = Ω_{320} = Ω_{0} = 1 G H z

;(b)

Ω_{210} = Ω_{320} = Ω_{0} = 3 G H z

(t₁₀=t₂₀=10 ns,Δ₂₁=Δ₃₂=0,

τ_{21} = τ_{32} = 10 n s

)

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Fig. 4. Variation of population of each energy state with time as relative delay time takes different values. (a) Δt=

- 4 n s; (b)

Δt=

- 2 n s

; (c) Δt=

0

; (d) Δt=

2 n s

; (e) Δt=

4 n s

(Δ₂₁=Δ₃₂=0,

Ω_{210} = Ω_{320} = Ω_{0} = 2 G H z

τ_{21} = τ_{32} = 10 n s

)

Guiyin Zhang, Xiaorui Wu, Songtao Li, Haiming Zheng. Population Inversion Under Driven of Double Laser Fields[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0719001

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