Sound amplification by stimulated emission of radiation in nonlinear mode

Zavtrak, S. T.; Volkov, I. V.

doi:10.1121/1.419802

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…There is an attractive theoretical scheme of sound amplification by stimulated emission of radiation (SASER) proposed by Zavtrak et al [5][6][7]. In this scheme a liquid dielectric with uniformly distributed dispersed particles was suggested as an active media.…”

Section: Phonon Generation By Quantum Dotsmentioning

confidence: 99%

<title>Semiconductor quantum dot superlattice for coherent acoustic phonon emission</title>

Khitun

Wang

2002

SPIE Proceedings

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We present a novel concept of using quantum dot superlattices for coherent acoustic phonon emission. Coherent lattice wave generation is proposed by collective dot vibrations in a self-assembled quantum dot array, where superlattice structure acts as a phonon resonator. The dots vibrations are synchronized by an external electric field. The proposed scheme has advantage of low phonon scattering rate in quantum dots, that enables generating high intensity phonon beams at low amplitude of the pumping electric field. The advantage is illustrated by numerical simulations carried out for Si/Ge superlattice. The proposed scheme may find many phonon applications, such as for local temperature control, phonon assisted optical transition enhancement, and characterization of low-dimensional structures.

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Section: Phonon Generation By Quantum Dotsmentioning

confidence: 99%

<title>Semiconductor quantum dot superlattice for coherent acoustic phonon emission</title>

Khitun

Wang

2002

SPIE Proceedings

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“…Publication of the studies of the so-called acoustic "laser" [36,37] dealing with the possible methods of excitation of coherent acoustic radiation and its amplification refreshed attention to the peculiar properties of bubbly media and their ability to amplify shock waves and form a system of layers with coherent properties in the medium [1,2]. The cavitation cluster arising in the heterogeneous liquid under the effect of tensile stresses and the liquid with bubbles containing explosive gas mixture can be considered as hydrodynamic and physical analogs of pumping in laser systems, respectively.…”

Section: Amplification Collision and Focusing Of Shock Wavesmentioning

confidence: 99%