Generation of high-frequency phonons by defect-induced one-phonon absorption

Schwartz, H. R.; Renk, K. F.

doi:10.1016/0038-1098(85)90157-7

Cited by 8 publications

(8 citation statements)

References 20 publications

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“…There have been various works on generating and detecting coherent heat-carrying phonons in materials [75][76][77][78]. Early low-temperature experiments in defect-doped materials have allowed direct observation of spectral diffusion of phonons [79,80] and achieved stimulated emission of phonons [81][82][83].…”

Section: Classical and Quantum Description Of Coherencementioning

confidence: 99%

“…Going beyond phonons in periodic structures, understanding phonon coherence using optical coherence theory will provide the ultimate evidence to describe phonons just like photons. There has been various work on generating and detecting coherent heat-carrying phonons in materials, especially at low temperatures [75][76][77][78][79][80][81][82][83], and it would be interesting to apply the concept of coherence in these experiments. Recently, work by Ding et al further implemented concepts in quantum coherence in potentially characterizing phonon coherence [186,187].…”

Section: Direct Detection Of Phonon Coherencementioning

confidence: 99%

“…However, such a response may not be applicable for phonon detectors, and Equation (2) may not be valid for detecting phonon coherence. Ding et al considered a popular phonon detector [187] called optical sideband detection [77,190,191]. Here, the relationship between the detector and the signal is no longer a simple function like that of the photoelectric detector.…”

Section: Direct Detection Of Phonon Coherencementioning

confidence: 99%

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Phonon coherence and its effect on thermal conductivity of nanostructures

Xie

Ding

Zhang

2018

Advances in Physics: X

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The concept of coherence is one of the fundamental phenomena in electronics and optics. In addition to electron and photon, phonon is another important energy and information carrier in nature. Without any doubt, exploration of the phonon coherence and its impact on thermal conduction will markedly change many aspects in broad applications for heat control and management in the real world. So far, the application of coherent effect on manipulation of phonon transport is a challenging work. In this article, we review recent advances in the study of the phonon coherent transport in nanomaterials and nanostructures. We first briefly look back the classical and quantum theory of coherence. Next, we review the progresses made in the understanding of phonon coherence in superlattice, nanowires and nanomeshes, respectively, and focus on the effect of phonon coherence on thermal conductivity. Finally, we introduce the recent advances in the direct detection of phonon coherence using optical coherence theory. ARTICLE HISTORY

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Section: Classical and Quantum Description Of Coherencementioning

confidence: 99%

Section: Direct Detection Of Phonon Coherencementioning

confidence: 99%

Section: Direct Detection Of Phonon Coherencementioning

confidence: 99%

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Phonon coherence and its effect on thermal conductivity of nanostructures

Xie

Ding

Zhang

2018

Advances in Physics: X

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“…At the same time, nanoscale material structures have exhibited phonon coherence through their thermal conductivity [25][26][27][28][29][30][31]. Earlier, THz crystal phonons have been generated and detected in low temperature experiments using dopants [32][33][34] or sideband detection [33][34][35][36][37][38]. Sideband detection is attractive compared to both thermal conductivity measurements and optical deflection techniques due to its ability to directly access atomic length scales where THz phonon wavelength couple with lattice phonons.…”

mentioning

confidence: 99%

“…In light of the success using sideband detection techniques for high frequency phonon detection, we examine the potential for this technique to measure the coherence properties of these phonons. Sideband spectroscopy has been widely used as a means to detect nonequilibrium phonon population [37], phonon propagation [37], phonon transmission through interfaces [36], phonon band structure [35,39] etc. Extensive theoretical studies in the nineteen fifties have allowed rigorous understanding of sideband lineshape and have been utilized to complement neutron scattering phonon band structure measurements [40,41].…”

mentioning

confidence: 99%

Determining Phonon Coherence Using Photon Sideband Detection

Ding,

Yin,

2017

Preprint

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Generating and detection coherent high-frequency heat-carrying phonons has been a great topic of interest in recent years. While there have been successful attempts in generating and observing coherent phonons, rigorous techniques to characterize and detect these phonon coherence in a crystalline material have been lagging compared to what has been achieved for photons. One main challenge is a lack of detailed understanding of how detection signals for phonons can be related to coherence. The quantum theory of photoelectric detection has greatly advanced the ability to characterize photon coherence in the last century and a similar theory for phonon detection is necessary. Here, we re-examine the optical sideband fluorescence technique that has been used detect high frequency phonons in materials with optically active defects. We apply the quantum theory of photodetection to the sideband technique and propose signatures in sideband photoncounting statistics and second-order correlation measurement of sideband signals that indicates the degree of phonon coherence. Our theory can be implemented in recently performed experiments to bridge the gap of determining phonon coherence to be on par with that of photons.

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