What question did this study set out to answer?

The study aims to explore the generation and propagation of coherent phonons in InAs/GaSb superlattices.

March 29, 2026Письма в Журнал экспериментальной и теоретической физики / JETP Letters (Journal of Experimental and Theoretical Physics Letters)

Когерентные фононы субтерагерцового диапазона частот в InAs/GaSb сверхрешетках

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Laser Photoacoustic Methods Investigate Coherent Phonon Generation in InAs/GaSb Superlattices, Indicating Novel Control Techniques.

The study aims to explore the generation and propagation of coherent phonons in InAs/GaSb superlattices.
Utilized laser photoacoustic techniques to investigate phonon behavior.
Focused on short-period InAs/GaSb superlattices grown on GaSb (001) substrates.
Applied femtosecond laser pulses to initiate coherent phonons.
Coherent phonons in the sub-terahertz frequency range were generated.
Phonons propagated at small angles to the (110) surface.
Interaction features with polarized electromagnetic radiation were identified, suggesting a new method for local control of crystalline structure.

Klokov et al. (2025) studied this question.

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