Nature of interference between Autler–Townes peaks in generic multi-level system

Nyakang’o, Elijah Ogaro; Shylla, Dangka; Indumathi, Kirthanaa; Pandey, Kanhaiya

doi:10.1140/epjd/e2020-10187-3

Cited by 5 publications

(2 citation statements)

References 37 publications

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“…Эти эффекты изучаются в различных режимах возбуждения электромагнитным полем поляритонов в полупроводниковых и атомных структурах -учет однофотонных [18], двухфотонных [19][20][21][22], трехфотонных [23] либо одновременный учет однофотонных и многофотонных переходов и их влияние на поглощение. Возможность управления спектром поглощения при помощи изменения интенсивности полей и расстроек резонанса в многоуровневых системах описано в [24][25][26][27]. Из анализа экспериментальных работ можно сделать вывод, что наблюдение триэкситонных и мультиэкситонных линий люминесценции требует специальных условий и является сложной задачей.…”

Section: Introductionunclassified

Триэкситоны И Их Влияние На Поглощение В Экситонной Области Спектра

Надькин¹,

Коровай²,

Марков³

2022

Физика Твердого Тела

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The effect of the triexciton state on the absorption of exciton-polaritons is studied under conditions when two high-power laser radiation pulses interacting with biexcitons and triexcitons and a probe pulse at the frequency of the exciton transition are incident on the medium. It is shown that even at low triexciton binding energies under the action of two high-power pulses, the exciton state splits into three quasi-levels, and the Outler-Towns effect (optical Stark effect) is observed. It turned out that the position of the quasi-levels depends on the detuning of the resonance of the pump pulses and their intensities, which makes it possible to identify them. These circumstances make it possible to diagnose the triexciton state in semiconductors with a higher degree of probability not by studying the absorption spectral line of the biexciton-triexciton transition, but by the effect of the triexciton state on absorption in the region of the exciton transition.

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Section: Introductionunclassified

Триэкситоны И Их Влияние На Поглощение В Экситонной Области Спектра

Надькин¹,

Коровай²,

Марков³

2022

Физика Твердого Тела

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“…These effects are studied in different modes of excitation by electromagnetic field of polaritons in semiconductor and atomic structures, i.e., taking into account one-photon [18], two-photon [19][20][21][22], three-photon [23] transitions or simultaneously taking into account onephoton and multi-photon transitions and their impact on the absorption. The possibility to control the absorption spectrum by changing intensities of fields and detuning resonance in multilevel systems is described in [24][25][26][27]. From the analysis of experimental studies a conclusion can be made that observation of triexciton and multiexciton luminescence lines requires special conditions and is a complex task.…”

Section: Introductionmentioning

confidence: 99%

Triexcitons and their effect on absorption in the exciton region of the spectrum

Yu.

Korovaĭ

Марков

2022

Physics of the Solid State

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The effect of the triexciton state on the absorption of exciton-polaritons is studied under conditions when two high-power laser radiation pulses interacting with biexcitons and triexcitons and a probe pulse at the frequency of the exciton transition are incident on the medium. It is shown that even at low triexciton binding energies under the action of two high-power pulses, the exciton state splits into three quasi-levels, and the Autler--Townes effect (optical Stark effect) is observed. It turned out that the position of the quasi-levels depends on the detuning of the resonance of the pump pulses and their intensities, which makes it possible to identify them. These circumstances make it possible to diagnose the triexciton state in semiconductors with a higher degree of probability not by studying the absorption spectral line of the biexciton--triexciton transition, but by the effect of the triexciton state on absorption in the region of the exciton transition. Keywords: excitons, biexcitons, triexcitons, Autler--Townes effect.

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Polariton-Type Dispersion Laws for Four-Level Atoms with Nonequidistant Energy Spectrum That Interact with Three Laser Pulses

Korovaĭ

2021

J. Exp. Theor. Phys.

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Nature of interference between Autler–Townes peaks in generic multi-level system

Cited by 5 publications

References 37 publications

Триэкситоны И Их Влияние На Поглощение В Экситонной Области Спектра

Триэкситоны И Их Влияние На Поглощение В Экситонной Области Спектра

Triexcitons and their effect on absorption in the exciton region of the spectrum

Polariton-Type Dispersion Laws for Four-Level Atoms with Nonequidistant Energy Spectrum That Interact with Three Laser Pulses

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