Dynamics of dimensional resonance of intrinsic picosecond emission in the heterostructure of AlxGa1-xAs–GaAs–AlxGa1-xAs, in which this emission induces a photonic crystal and oscillations of electron population

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A correlated effect of the size resonance on the parameters of the pulse envelope of the spectral component of stimulated picosecond emission of the AlxGa1-xAs–GaAs–AlxGa1-xAs heterostructure has been discovered. This emission induces a Bragg grating of electron population in the active region of the GaAs layer, making the region a photonic crystal, and excites population oscillations over time. It has been established that the new type of size resonance studied is most often a consequence of the law of minimum dissipation.

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N. Ageeva

Kotelnikov Institute of Radioengeneering and Electronics, Russian Academy of Sciences

Email: bil@cplire.ru
俄罗斯联邦, Mokhovaya st., 11, build. 7, Moscow, 125009

I. Bronevoi

Kotelnikov Institute of Radioengeneering and Electronics, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: bil@cplire.ru
俄罗斯联邦, Mokhovaya st., 11, build. 7, Moscow, 125009

A. Krivonosov

Kotelnikov Institute of Radioengeneering and Electronics, Russian Academy of Sciences

Email: bil@cplire.ru
俄罗斯联邦, Mokhovaya st., 11, build. 7, Moscow, 125009

参考

  1. Агеева Н.Н., Броневой И.Л., Кривоносов А.Н. // ЖЭТФ. 2022. Т. 162. № 6. С. 1018.
  2. Агеева Н.Н., Броневой И.Л., Кривоносов А.Н. и др. // ФТП. 2005. Т. 39. № 6. С. 681.
  3. Агеева Н.Н., Броневой И.Л., Кривоносов А.Н. // РЭ. 2024. Т. 69. № 2. С. 187.
  4. Агеева Н.Н., Броневой И.Л., Кривоносов А.Н. // РЭ. 2023. Т. 68. № 3. С. 211.
  5. Агеева Н.Н., Броневой И.Л., Забегаев Д.Н., Кривоносов А.Н. // ЖЭТФ. 2013. Т. 144. № 2. С. 227.

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2. Fig. 1. Experimental scheme.

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3. Fig. 2. Dependence on the pump energy Wex at δY = 110 μm: curve 1 — maximum intensity Ismax of the spectral (with ħω = 1.384 eV) component of radiation (s-component); curve 2 — energy of the s-component WΣ, proportional to and therefore determined by the area under the chronogram; curve 3 — duration of the s-component at half-maximum T1/2; curve 4 — moment of time tmax, at which the maximum of the envelope of the s-component is reached; curves 5–8 — respectively, smooth components of dependences 1–4.

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4. Fig. 3. Chronograms of the s-component for different pump energies: Wex = 3.95 (1), 4.11 (2) and 4.36 rel. units (3); vertical arrow — see explanation in text.

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5. Fig. 4. Dependence of the moment of time tmax on the decrease in the distance between the active region and the end (shear) δY (curve 1); smooth (2) and modulation (3) components of the dependence of tmax on δY; modulation component of the dependence of WΣ on δY (curve 4). The inset shows chronograms for δY = 80 (1) and 85 μm (2).

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6. Fig. 5. Modulation components ΔIsmax (Wex) – (1), ΔWΣ (Wex) – (2), ΔТ1/2 (Wex) – (3) and Δtmax (Wex) – (4) of the dependencies presented in Fig. 2; vertical lines – see explanations in the text.

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7. Fig. 6. Chronogram of the s-component in a semi-logarithmic scale (1) and its derivative dIs2/dt2 (2); tangent to the decay of the chronogram, confirming the exponential decay of the radiation (3).

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8. Fig. 7. Dependences on the energy Wex: curve 1 – delay δτexp of the beginning of exponential relaxation (for the definition of the delay δτexp, see Fig. 6), curve 2 – characteristic time τr of exponential relaxation of the s-component, curve 3 – value ΔIsmax (3).

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9. Fig. 8. Smooth component f of the dependence on the pump energy Wex of the energy WΣ of the s-component at δY = 110 μm (curve 1) and the energy Ws of the s-component measured in [3] at δY = 160 μm (curve 2).

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